Shuffle stuff around

- Use the new and improved hierarchy I figured out when making Prospero chat
- Re-add NSIS scripts, again from Prospero
- Update most build and utility scripts with their most recent versions

200 files changed, 16030 insertions, 0 deletions

diff --git a/src/game/CMakeLists.txt b/src/game/CMakeLists.txt
new file mode 100644
index 0000000..0144726
--- /dev/null
+++ b/src/game/CMakeLists.txt
@@ -0,0 +1,9 @@
+add_subdirectory(shared)
+
+if(BUILD_VCLIENT)
+    add_subdirectory(client)
+endif()
+
+if(BUILD_VSERVER)
+    add_subdirectory(server)
+endif()
diff --git a/src/game/client/CMakeLists.txt b/src/game/client/CMakeLists.txt
new file mode 100644
index 0000000..af30497
--- /dev/null
+++ b/src/game/client/CMakeLists.txt
@@ -0,0 +1,47 @@
+add_executable(vclient
+    "${CMAKE_CURRENT_LIST_DIR}/const.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/experiments.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/experiments.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/game.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/game.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/globals.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/globals.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/main.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/pch.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/program.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/program.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/receive.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/receive.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/screenshot.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/screenshot.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/session.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/session.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/toggles.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/toggles.hh")
+target_compile_features(vclient PUBLIC cxx_std_20)
+target_compile_definitions(vclient PUBLIC GLFW_INCLUDE_NONE)
+target_include_directories(vclient PRIVATE "${PROJECT_SOURCE_DIR}/src")
+target_include_directories(vclient PRIVATE "${PROJECT_SOURCE_DIR}/src/game")
+target_precompile_headers(vclient PRIVATE "${CMAKE_CURRENT_LIST_DIR}/pch.hh")
+target_link_libraries(vclient PUBLIC shared dr_libs glad glfw imgui imgui-glfw imgui-opengl3 salad)
+
+add_subdirectory(config)
+add_subdirectory(entity)
+add_subdirectory(gui)
+add_subdirectory(io)
+add_subdirectory(resource)
+add_subdirectory(sound)
+add_subdirectory(world)
+
+if(WIN32 AND MSVC)
+    # GLFW defines APIENTRY and ENet includes
+    # Windows API headers which also define APIENTRY
+    target_compile_options(vclient PRIVATE /wd4005)
+endif()
+
+if(WIN32)
+    enable_language(RC)
+    target_sources(vclient PRIVATE "${CMAKE_CURRENT_LIST_DIR}/vclient.rc")
+endif()
+
+install(TARGETS vclient RUNTIME DESTINATION ".")
diff --git a/src/game/client/config/CMakeLists.txt b/src/game/client/config/CMakeLists.txt
new file mode 100644
index 0000000..0536160
--- /dev/null
+++ b/src/game/client/config/CMakeLists.txt
@@ -0,0 +1,7 @@
+target_sources(vclient PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/gamepad_axis.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/gamepad_axis.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/gamepad_button.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/gamepad_button.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/keybind.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/keybind.hh")
diff --git a/src/game/client/config/gamepad_axis.cc b/src/game/client/config/gamepad_axis.cc
new file mode 100644
index 0000000..c6f9e3d
--- /dev/null
+++ b/src/game/client/config/gamepad_axis.cc
@@ -0,0 +1,115 @@
+#include "client/pch.hh"
+
+#include "client/config/gamepad_axis.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "client/io/gamepad.hh"
+
+constexpr static std::string_view UNKNOWN_AXIS_NAME = "UNKNOWN";
+
+static const std::pair<int, std::string_view> axis_names[] = {
+    { GLFW_GAMEPAD_AXIS_LEFT_X, "LEFT_X" },
+    { GLFW_GAMEPAD_AXIS_LEFT_Y, "LEFT_Y" },
+    { GLFW_GAMEPAD_AXIS_RIGHT_X, "RIGHT_X" },
+    { GLFW_GAMEPAD_AXIS_RIGHT_Y, "RIGHT_Y" },
+    { GLFW_GAMEPAD_AXIS_LEFT_TRIGGER, "LEFT_TRIG" },
+    { GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER, "RIGHT_TRIG" },
+};
+
+static std::string_view get_axis_name(int axis)
+{
+    for(const auto& it : axis_names) {
+        if(it.first != axis) {
+            continue;
+        }
+
+        return it.second;
+    }
+
+    return UNKNOWN_AXIS_NAME;
+}
+
+config::GamepadAxis::GamepadAxis(void) : GamepadAxis(io::INVALID_GAMEPAD_AXIS, false)
+{
+}
+
+config::GamepadAxis::GamepadAxis(int axis, bool inverted)
+{
+    m_inverted = inverted;
+    m_gamepad_axis = axis;
+    m_name = get_axis_name(axis);
+    m_full_string = std::format("{}:{}", m_name, m_inverted ? 1U : 0U);
+}
+
+std::string_view config::GamepadAxis::get(void) const
+{
+    return m_full_string;
+}
+
+void config::GamepadAxis::set(std::string_view value)
+{
+    char new_name[64];
+    unsigned int new_invert;
+    std::string value_str(value);
+
+    if(2 == std::sscanf(value_str.c_str(), "%63[^:]:%u", new_name, &new_invert)) {
+        for(const auto& it : axis_names) {
+            if(0 == it.second.compare(new_name)) {
+                m_inverted = new_invert;
+                m_gamepad_axis = it.first;
+                m_name = get_axis_name(m_gamepad_axis);
+                m_full_string = std::format("{}:{}", m_name, m_inverted ? 1U : 0U);
+                return;
+            }
+        }
+    }
+
+    m_inverted = false;
+    m_gamepad_axis = io::INVALID_GAMEPAD_AXIS;
+    m_name = UNKNOWN_AXIS_NAME;
+    m_full_string = std::format("{}:{}", m_name, m_inverted ? 1U : 0U);
+}
+
+int config::GamepadAxis::get_axis(void) const
+{
+    return m_gamepad_axis;
+}
+
+void config::GamepadAxis::set_axis(int axis)
+{
+    m_gamepad_axis = axis;
+    m_name = get_axis_name(axis);
+    m_full_string = std::format("{}:{}", m_name, m_inverted ? 1U : 0U);
+}
+
+bool config::GamepadAxis::is_inverted(void) const
+{
+    return m_inverted;
+}
+
+void config::GamepadAxis::set_inverted(bool inverted)
+{
+    m_inverted = inverted;
+    m_full_string = std::format("{}:{}", m_name, m_inverted ? 1U : 0U);
+}
+
+float config::GamepadAxis::get_value(const GLFWgamepadstate& state, float deadzone) const
+{
+    if(m_gamepad_axis <= math::array_size(state.axes)) {
+        auto value = state.axes[m_gamepad_axis];
+
+        if(glm::abs(value) > deadzone) {
+            return m_inverted ? -value : value;
+        }
+
+        return 0.0f;
+    }
+
+    return 0.0f;
+}
+
+std::string_view config::GamepadAxis::get_name(void) const
+{
+    return m_name;
+}
diff --git a/src/game/client/config/gamepad_axis.hh b/src/game/client/config/gamepad_axis.hh
new file mode 100644
index 0000000..9392a35
--- /dev/null
+++ b/src/game/client/config/gamepad_axis.hh
@@ -0,0 +1,38 @@
+#pragma once
+
+#include "core/config/ivalue.hh"
+
+struct GLFWgamepadstate;
+
+namespace config
+{
+class GamepadAxis final : public IValue {
+public:
+    explicit GamepadAxis(void);
+    explicit GamepadAxis(int axis, bool inverted);
+    virtual ~GamepadAxis(void) = default;
+
+    virtual std::string_view get(void) const override;
+    virtual void set(std::string_view value) override;
+
+    int get_axis(void) const;
+    void set_axis(int axis);
+
+    bool is_inverted(void) const;
+    void set_inverted(bool inverted);
+
+    float get_value(const GLFWgamepadstate& state, float deadzone = 0.0f) const;
+
+    // Conventional get/set methods implemented by
+    // this configuration value actually contain the
+    // inversion flag. Since we're updating that flag
+    // in the UI by means of a separate checkbox, we only need the name here
+    std::string_view get_name(void) const;
+
+private:
+    bool m_inverted;
+    int m_gamepad_axis;
+    std::string m_full_string;
+    std::string_view m_name;
+};
+} // namespace config
diff --git a/src/game/client/config/gamepad_button.cc b/src/game/client/config/gamepad_button.cc
new file mode 100644
index 0000000..07e4457
--- /dev/null
+++ b/src/game/client/config/gamepad_button.cc
@@ -0,0 +1,90 @@
+#include "client/pch.hh"
+
+#include "client/config/gamepad_button.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "client/io/gamepad.hh"
+
+constexpr static std::string_view UNKNOWN_BUTTON_NAME = "UNKNOWN";
+
+static const std::pair<int, std::string_view> button_names[] = {
+    { GLFW_GAMEPAD_BUTTON_A, "A" },
+    { GLFW_GAMEPAD_BUTTON_B, "B" },
+    { GLFW_GAMEPAD_BUTTON_X, "X" },
+    { GLFW_GAMEPAD_BUTTON_Y, "Y" },
+    { GLFW_GAMEPAD_BUTTON_LEFT_BUMPER, "L_BUMP" },
+    { GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER, "R_BUMP" },
+    { GLFW_GAMEPAD_BUTTON_BACK, "BACK" },
+    { GLFW_GAMEPAD_BUTTON_START, "START" },
+    { GLFW_GAMEPAD_BUTTON_GUIDE, "GUIDE" },
+    { GLFW_GAMEPAD_BUTTON_LEFT_THUMB, "L_THUMB" },
+    { GLFW_GAMEPAD_BUTTON_RIGHT_THUMB, "R_THUMB" },
+    { GLFW_GAMEPAD_BUTTON_DPAD_UP, "DPAD_UP" },
+    { GLFW_GAMEPAD_BUTTON_DPAD_RIGHT, "DPAD_RIGHT" },
+    { GLFW_GAMEPAD_BUTTON_DPAD_DOWN, "DPAD_DOWN" },
+    { GLFW_GAMEPAD_BUTTON_DPAD_LEFT, "DPAD_LEFT" },
+};
+
+static std::string_view get_button_name(int button)
+{
+    for(const auto& it : button_names) {
+        if(it.first == button) {
+            return it.second;
+        }
+    }
+
+    return UNKNOWN_BUTTON_NAME;
+}
+
+config::GamepadButton::GamepadButton(void)
+{
+    m_gamepad_button = io::INVALID_GAMEPAD_BUTTON;
+    m_name = UNKNOWN_BUTTON_NAME;
+}
+
+config::GamepadButton::GamepadButton(int button)
+{
+    m_gamepad_button = button;
+    m_name = get_button_name(button);
+}
+
+std::string_view config::GamepadButton::get(void) const
+{
+    return m_name;
+}
+
+void config::GamepadButton::set(std::string_view value)
+{
+    for(const auto& it : button_names) {
+        if(0 == it.second.compare(value)) {
+            m_gamepad_button = it.first;
+            m_name = it.second;
+            return;
+        }
+    }
+
+    m_gamepad_button = io::INVALID_GAMEPAD_BUTTON;
+    m_name = UNKNOWN_BUTTON_NAME;
+}
+
+int config::GamepadButton::get_button(void) const
+{
+    return m_gamepad_button;
+}
+
+void config::GamepadButton::set_button(int button)
+{
+    m_gamepad_button = button;
+    m_name = get_button_name(button);
+}
+
+bool config::GamepadButton::equals(int button) const
+{
+    return m_gamepad_button == button;
+}
+
+bool config::GamepadButton::is_pressed(const GLFWgamepadstate& state) const
+{
+    return m_gamepad_button < math::array_size(state.buttons) && state.buttons[m_gamepad_button] == GLFW_PRESS;
+}
diff --git a/src/game/client/config/gamepad_button.hh b/src/game/client/config/gamepad_button.hh
new file mode 100644
index 0000000..584c353
--- /dev/null
+++ b/src/game/client/config/gamepad_button.hh
@@ -0,0 +1,28 @@
+#pragma once
+
+#include "core/config/ivalue.hh"
+
+struct GLFWgamepadstate;
+
+namespace config
+{
+class GamepadButton final : public IValue {
+public:
+    explicit GamepadButton(void);
+    explicit GamepadButton(int button);
+    virtual ~GamepadButton(void) = default;
+
+    virtual std::string_view get(void) const override;
+    virtual void set(std::string_view value) override;
+
+    int get_button(void) const;
+    void set_button(int button);
+
+    bool equals(int button) const;
+    bool is_pressed(const GLFWgamepadstate& state) const;
+
+private:
+    int m_gamepad_button;
+    std::string_view m_name;
+};
+} // namespace config
diff --git a/src/game/client/config/keybind.cc b/src/game/client/config/keybind.cc
new file mode 100644
index 0000000..e254f7b
--- /dev/null
+++ b/src/game/client/config/keybind.cc
@@ -0,0 +1,202 @@
+#include "client/pch.hh"
+
+#include "client/config/keybind.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "client/const.hh"
+
+constexpr static std::string_view UNKNOWN_KEY_NAME = "UNKNOWN";
+
+static const std::pair<int, std::string_view> key_names[] = {
+    { GLFW_KEY_SPACE, "SPACE" },
+    { GLFW_KEY_APOSTROPHE, "'" },
+    { GLFW_KEY_COMMA, "," },
+    { GLFW_KEY_MINUS, "-" },
+    { GLFW_KEY_PERIOD, "." },
+    { GLFW_KEY_SLASH, "/" },
+    { GLFW_KEY_0, "0" },
+    { GLFW_KEY_1, "1" },
+    { GLFW_KEY_2, "2" },
+    { GLFW_KEY_3, "3" },
+    { GLFW_KEY_4, "4" },
+    { GLFW_KEY_5, "5" },
+    { GLFW_KEY_6, "6" },
+    { GLFW_KEY_7, "7" },
+    { GLFW_KEY_8, "8" },
+    { GLFW_KEY_9, "9" },
+    { GLFW_KEY_SEMICOLON, ";" },
+    { GLFW_KEY_EQUAL, "=" },
+    { GLFW_KEY_A, "A" },
+    { GLFW_KEY_B, "B" },
+    { GLFW_KEY_C, "C" },
+    { GLFW_KEY_D, "D" },
+    { GLFW_KEY_E, "E" },
+    { GLFW_KEY_F, "F" },
+    { GLFW_KEY_G, "G" },
+    { GLFW_KEY_H, "H" },
+    { GLFW_KEY_I, "I" },
+    { GLFW_KEY_J, "J" },
+    { GLFW_KEY_K, "K" },
+    { GLFW_KEY_L, "L" },
+    { GLFW_KEY_M, "M" },
+    { GLFW_KEY_N, "N" },
+    { GLFW_KEY_O, "O" },
+    { GLFW_KEY_P, "P" },
+    { GLFW_KEY_Q, "Q" },
+    { GLFW_KEY_R, "R" },
+    { GLFW_KEY_S, "S" },
+    { GLFW_KEY_T, "T" },
+    { GLFW_KEY_U, "U" },
+    { GLFW_KEY_V, "V" },
+    { GLFW_KEY_W, "W" },
+    { GLFW_KEY_X, "X" },
+    { GLFW_KEY_Y, "Y" },
+    { GLFW_KEY_Z, "Z" },
+    { GLFW_KEY_LEFT_BRACKET, "[" },
+    { GLFW_KEY_BACKSLASH, "\\" },
+    { GLFW_KEY_RIGHT_BRACKET, "]" },
+    { GLFW_KEY_GRAVE_ACCENT, "`" },
+    { GLFW_KEY_WORLD_1, "WORLD_1" },
+    { GLFW_KEY_WORLD_2, "WORLD_2" },
+    { GLFW_KEY_ESCAPE, "ESCAPE" },
+    { GLFW_KEY_ENTER, "ENTER" },
+    { GLFW_KEY_TAB, "TAB" },
+    { GLFW_KEY_BACKSPACE, "BACKSPACE" },
+    { GLFW_KEY_INSERT, "INSERT" },
+    { GLFW_KEY_DELETE, "DELETE" },
+    { GLFW_KEY_RIGHT, "RIGHT" },
+    { GLFW_KEY_LEFT, "LEFT" },
+    { GLFW_KEY_DOWN, "DOWN" },
+    { GLFW_KEY_UP, "UP" },
+    { GLFW_KEY_PAGE_UP, "PAGE_UP" },
+    { GLFW_KEY_PAGE_DOWN, "PAGE_DOWN" },
+    { GLFW_KEY_HOME, "HOME" },
+    { GLFW_KEY_END, "END" },
+    { GLFW_KEY_CAPS_LOCK, "CAPS_LOCK" },
+    { GLFW_KEY_SCROLL_LOCK, "SCROLL_LOCK" },
+    { GLFW_KEY_NUM_LOCK, "NUM_LOCK" },
+    { GLFW_KEY_PRINT_SCREEN, "PRINT_SCREEN" },
+    { GLFW_KEY_PAUSE, "PAUSE" },
+    { GLFW_KEY_F1, "F1" },
+    { GLFW_KEY_F2, "F2" },
+    { GLFW_KEY_F3, "F3" },
+    { GLFW_KEY_F4, "F4" },
+    { GLFW_KEY_F5, "F5" },
+    { GLFW_KEY_F6, "F6" },
+    { GLFW_KEY_F7, "F7" },
+    { GLFW_KEY_F8, "F8" },
+    { GLFW_KEY_F9, "F9" },
+    { GLFW_KEY_F10, "F10" },
+    { GLFW_KEY_F11, "F11" },
+    { GLFW_KEY_F12, "F12" },
+    { GLFW_KEY_F13, "F13" },
+    { GLFW_KEY_F14, "F14" },
+    { GLFW_KEY_F15, "F15" },
+    { GLFW_KEY_F16, "F16" },
+    { GLFW_KEY_F17, "F17" },
+    { GLFW_KEY_F18, "F18" },
+    { GLFW_KEY_F19, "F19" },
+    { GLFW_KEY_F20, "F20" },
+    { GLFW_KEY_F21, "F21" },
+    { GLFW_KEY_F22, "F22" },
+    { GLFW_KEY_F23, "F23" },
+    { GLFW_KEY_F24, "F24" },
+    { GLFW_KEY_F25, "F25" },
+    { GLFW_KEY_KP_0, "KEYPAD_0" },
+    { GLFW_KEY_KP_1, "KEYPAD_1" },
+    { GLFW_KEY_KP_2, "KEYPAD_2" },
+    { GLFW_KEY_KP_3, "KEYPAD_3" },
+    { GLFW_KEY_KP_4, "KEYPAD_4" },
+    { GLFW_KEY_KP_5, "KEYPAD_5" },
+    { GLFW_KEY_KP_6, "KEYPAD_6" },
+    { GLFW_KEY_KP_7, "KEYPAD_7" },
+    { GLFW_KEY_KP_8, "KEYPAD_8" },
+    { GLFW_KEY_KP_9, "KEYPAD_9" },
+    { GLFW_KEY_KP_DECIMAL, "KEYPAD_POINT" },
+    { GLFW_KEY_KP_DIVIDE, "KEYPAD_DIV" },
+    { GLFW_KEY_KP_MULTIPLY, "KEYPAD_MUL" },
+    { GLFW_KEY_KP_SUBTRACT, "KEYPAD_MINUS" },
+    { GLFW_KEY_KP_ADD, "KEYPAD_PLUS" },
+    { GLFW_KEY_KP_ENTER, "KEYPAD_ENTER" },
+    { GLFW_KEY_KP_EQUAL, "KEYPAD_EQUAL" },
+    { GLFW_KEY_LEFT_SHIFT, "LEFT_SHIFT" },
+    { GLFW_KEY_LEFT_CONTROL, "LEFT_CTRL" },
+    { GLFW_KEY_LEFT_ALT, "LEFT_ALT" },
+    { GLFW_KEY_LEFT_SUPER, "LEFT_SUPER" },
+    { GLFW_KEY_RIGHT_SHIFT, "RIGHT_SHIFT" },
+    { GLFW_KEY_RIGHT_CONTROL, "RIGHT_CTRL" },
+    { GLFW_KEY_RIGHT_ALT, "RIGHT_ALT" },
+    { GLFW_KEY_RIGHT_SUPER, "RIGHT_SUPER" },
+    { GLFW_KEY_MENU, "MENU" },
+};
+
+static std::string_view get_key_name(int keycode)
+{
+    for(const auto& it : key_names) {
+        if(it.first == keycode) {
+            return it.second;
+        }
+    }
+
+    return UNKNOWN_KEY_NAME;
+}
+
+config::KeyBind::KeyBind(void)
+{
+    m_glfw_keycode = GLFW_KEY_UNKNOWN;
+    m_name = UNKNOWN_KEY_NAME;
+}
+
+config::KeyBind::KeyBind(int default_value)
+{
+    if(default_value == DEBUG_KEY) {
+        m_glfw_keycode = GLFW_KEY_UNKNOWN;
+        m_name = UNKNOWN_KEY_NAME;
+    }
+    else {
+        m_glfw_keycode = default_value;
+        m_name = get_key_name(default_value);
+    }
+}
+
+void config::KeyBind::set(std::string_view value)
+{
+    for(const auto& it : key_names) {
+        if((it.first != DEBUG_KEY) && 0 == it.second.compare(value)) {
+            m_glfw_keycode = it.first;
+            m_name = it.second;
+            return;
+        }
+    }
+
+    m_glfw_keycode = GLFW_KEY_UNKNOWN;
+    m_name = UNKNOWN_KEY_NAME;
+}
+
+std::string_view config::KeyBind::get(void) const
+{
+    return m_name;
+}
+
+void config::KeyBind::set_key(int keycode)
+{
+    if(keycode == DEBUG_KEY) {
+        m_glfw_keycode = GLFW_KEY_UNKNOWN;
+        m_name = UNKNOWN_KEY_NAME;
+    }
+    else {
+        m_glfw_keycode = keycode;
+        m_name = get_key_name(keycode);
+    }
+}
+
+int config::KeyBind::get_key(void) const
+{
+    return m_glfw_keycode;
+}
+
+bool config::KeyBind::equals(int keycode) const
+{
+    return m_glfw_keycode == keycode;
+}
diff --git a/src/game/client/config/keybind.hh b/src/game/client/config/keybind.hh
new file mode 100644
index 0000000..dff6c18
--- /dev/null
+++ b/src/game/client/config/keybind.hh
@@ -0,0 +1,25 @@
+#pragma once
+
+#include "core/config/ivalue.hh"
+
+namespace config
+{
+class KeyBind final : public IValue {
+public:
+    explicit KeyBind(void);
+    explicit KeyBind(int default_value);
+    virtual ~KeyBind(void) = default;
+
+    virtual void set(std::string_view value) override;
+    virtual std::string_view get(void) const override;
+
+    void set_key(int keycode);
+    int get_key(void) const;
+
+    bool equals(int keycode) const;
+
+private:
+    std::string_view m_name;
+    int m_glfw_keycode;
+};
+} // namespace config
diff --git a/src/game/client/const.hh b/src/game/client/const.hh
new file mode 100644
index 0000000..461b500
--- /dev/null
+++ b/src/game/client/const.hh
@@ -0,0 +1,23 @@
+#pragma once
+
+#include "shared/const.hh"
+
+// This key is then going to be reserved for only
+// the debug toggles and users won't be able to
+// use this key for conventional gameplay things
+constexpr static int DEBUG_KEY = GLFW_KEY_F3;
+
+constexpr static int BASE_WIDTH = 320;
+constexpr static int BASE_HEIGHT = 240;
+
+constexpr static int MIN_WIDTH = 2 * BASE_WIDTH;
+constexpr static int MIN_HEIGHT = 2 * BASE_HEIGHT;
+
+constexpr static int DEFAULT_WIDTH = 720;
+constexpr static int DEFAULT_HEIGHT = 480;
+
+static_assert(DEFAULT_WIDTH >= MIN_WIDTH);
+static_assert(DEFAULT_HEIGHT >= MIN_HEIGHT);
+
+constexpr static float MIN_PITCH = 0.0625f;
+constexpr static float MAX_PITCH = 10.0f;
diff --git a/src/game/client/entity/CMakeLists.txt b/src/game/client/entity/CMakeLists.txt
new file mode 100644
index 0000000..4da10d6
--- /dev/null
+++ b/src/game/client/entity/CMakeLists.txt
@@ -0,0 +1,15 @@
+target_sources(vclient PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/camera.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/camera.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/factory.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/factory.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/interpolation.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/interpolation.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/listener.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/listener.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/player_look.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/player_look.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/player_move.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/player_move.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/sound_emitter.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/sound_emitter.hh")
diff --git a/src/game/client/entity/camera.cc b/src/game/client/entity/camera.cc
new file mode 100644
index 0000000..3badd9d
--- /dev/null
+++ b/src/game/client/entity/camera.cc
@@ -0,0 +1,114 @@
+#include "client/pch.hh"
+
+#include "client/entity/camera.hh"
+
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/angles.hh"
+
+#include "shared/entity/head.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "client/entity/player_move.hh"
+
+#include "client/gui/settings.hh"
+
+#include "client/const.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+#include "client/toggles.hh"
+
+config::Float entity::camera::roll_angle(2.0f, 0.0f, 4.0f);
+config::Float entity::camera::vertical_fov(90.0f, 45.0f, 110.0f);
+config::Unsigned entity::camera::view_distance(16U, 4U, 32U);
+
+glm::fvec3 entity::camera::angles;
+glm::fvec3 entity::camera::direction;
+glm::fmat4x4 entity::camera::matrix;
+chunk_pos entity::camera::position_chunk;
+glm::fvec3 entity::camera::position_local;
+
+static void reset_camera(void)
+{
+    entity::camera::angles = glm::fvec3(0.0f, 0.0f, 0.0f);
+    entity::camera::direction = DIR_FORWARD<float>;
+    entity::camera::matrix = glm::identity<glm::fmat4x4>();
+    entity::camera::position_chunk = chunk_pos(0, 0, 0);
+    entity::camera::position_local = glm::fvec3(0.0f, 0.0f, 0.0f);
+}
+
+// Gracefully contributed by PQCraft himself in 2024
+// making PlatinumSrc and Voxelius kind of related to each other
+static glm::fmat4x4 platinumsrc_viewmatrix(const glm::fvec3& position, const glm::fvec3& angles)
+{
+    glm::fvec3 forward, up;
+    math::vectors(angles, &forward, nullptr, &up);
+
+    auto result = glm::identity<glm::fmat4x4>();
+    result[0][0] = forward.y * up.z - forward.z * up.y;
+    result[1][0] = forward.z * up.x - forward.x * up.z;
+    result[2][0] = forward.x * up.y - forward.y * up.x;
+    result[3][0] = -result[0][0] * position.x - result[1][0] * position.y - result[2][0] * position.z;
+    result[0][1] = up.x;
+    result[1][1] = up.y;
+    result[2][1] = up.z;
+    result[3][1] = -up.x * position.x - up.y * position.y - up.z * position.z;
+    result[0][2] = -forward.x;
+    result[1][2] = -forward.y;
+    result[2][2] = -forward.z;
+    result[3][2] = forward.x * position.x + forward.y * position.y + forward.z * position.z;
+    return result;
+}
+
+void entity::camera::init(void)
+{
+    globals::client_config.add_value("camera.roll_angle", entity::camera::roll_angle);
+    globals::client_config.add_value("camera.vertical_fov", entity::camera::vertical_fov);
+    globals::client_config.add_value("camera.view_distance", entity::camera::view_distance);
+
+    settings::add_slider(1, entity::camera::vertical_fov, settings_location::GENERAL, "camera.vertical_fov", true, "%.0f");
+    settings::add_slider(0, entity::camera::view_distance, settings_location::VIDEO, "camera.view_distance", false);
+    settings::add_slider(10, entity::camera::roll_angle, settings_location::VIDEO, "camera.roll_angle", true, "%.01f");
+
+    reset_camera();
+}
+
+void entity::camera::update(void)
+{
+    if(!session::is_ingame()) {
+        reset_camera();
+        return;
+    }
+
+    const auto& head = globals::dimension->entities.get<entity::client::HeadIntr>(globals::player);
+    const auto& transform = globals::dimension->entities.get<entity::client::TransformIntr>(globals::player);
+    const auto& velocity = globals::dimension->entities.get<entity::Velocity>(globals::player);
+
+    entity::camera::angles = transform.angles + head.angles;
+    entity::camera::position_chunk = transform.chunk;
+    entity::camera::position_local = transform.local + head.offset;
+
+    glm::fvec3 right_vector, up_vector;
+    math::vectors(entity::camera::angles, &entity::camera::direction, &right_vector, &up_vector);
+
+    auto client_angles = entity::camera::angles;
+
+    if(!toggles::get(TOGGLE_PM_FLIGHT)) {
+        // Apply the quake-like view rolling
+        client_angles[2] = math::radians(-entity::camera::roll_angle.get_value()
+            * glm::dot(velocity.value / PMOVE_MAX_SPEED_GROUND, right_vector));
+    }
+
+    const auto z_near = 0.01f;
+    const auto z_far = 1.25f * static_cast<float>(CHUNK_SIZE * entity::camera::view_distance.get_value());
+
+    auto proj = glm::perspective(math::radians(entity::camera::vertical_fov.get_value()), globals::aspect, z_near, z_far);
+    auto view = platinumsrc_viewmatrix(entity::camera::position_local, client_angles);
+
+    entity::camera::matrix = proj * view;
+}
diff --git a/src/game/client/entity/camera.hh b/src/game/client/entity/camera.hh
new file mode 100644
index 0000000..67baf72
--- /dev/null
+++ b/src/game/client/entity/camera.hh
@@ -0,0 +1,31 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace config
+{
+class Float;
+class Unsigned;
+} // namespace config
+
+namespace entity::camera
+{
+extern config::Float roll_angle;
+extern config::Float vertical_fov;
+extern config::Unsigned view_distance;
+} // namespace entity::camera
+
+namespace entity::camera
+{
+extern glm::fvec3 angles;
+extern glm::fvec3 direction;
+extern glm::fmat4x4 matrix;
+extern chunk_pos position_chunk;
+extern glm::fvec3 position_local;
+} // namespace entity::camera
+
+namespace entity::camera
+{
+void init(void);
+void update(void);
+} // namespace entity::camera
diff --git a/src/game/client/entity/factory.cc b/src/game/client/entity/factory.cc
new file mode 100644
index 0000000..f6f6079
--- /dev/null
+++ b/src/game/client/entity/factory.cc
@@ -0,0 +1,30 @@
+#include "client/pch.hh"
+
+#include "client/entity/factory.hh"
+
+#include "shared/entity/factory.hh"
+#include "shared/entity/head.hh"
+#include "shared/entity/transform.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "client/entity/sound_emitter.hh"
+
+#include "client/globals.hh"
+
+void entity::client::create_player(world::Dimension* dimension, entt::entity entity)
+{
+    entity::shared::create_player(dimension, entity);
+
+    const auto& head = dimension->entities.get<entity::Head>(entity);
+    dimension->entities.emplace_or_replace<entity::client::HeadIntr>(entity, head);
+    dimension->entities.emplace_or_replace<entity::client::HeadPrev>(entity, head);
+
+    const auto& transform = dimension->entities.get<entity::Transform>(entity);
+    dimension->entities.emplace_or_replace<entity::client::TransformIntr>(entity, transform);
+    dimension->entities.emplace_or_replace<entity::client::TransformPrev>(entity, transform);
+
+    if(globals::sound_ctx) {
+        dimension->entities.emplace_or_replace<entity::SoundEmitter>(entity);
+    }
+}
diff --git a/src/game/client/entity/factory.hh b/src/game/client/entity/factory.hh
new file mode 100644
index 0000000..63e6e44
--- /dev/null
+++ b/src/game/client/entity/factory.hh
@@ -0,0 +1,11 @@
+#pragma once
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace entity::client
+{
+void create_player(world::Dimension* dimension, entt::entity entity);
+} // namespace entity::client
diff --git a/src/game/client/entity/interpolation.cc b/src/game/client/entity/interpolation.cc
new file mode 100644
index 0000000..a9a3349
--- /dev/null
+++ b/src/game/client/entity/interpolation.cc
@@ -0,0 +1,64 @@
+#include "client/pch.hh"
+
+#include "client/entity/interpolation.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "shared/entity/head.hh"
+#include "shared/entity/transform.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/coord.hh"
+
+#include "client/globals.hh"
+
+static void transform_interpolate(float alpha)
+{
+    auto group = globals::dimension->entities.group<entity::client::TransformIntr>(
+        entt::get<entity::Transform, entity::client::TransformPrev>);
+
+    for(auto [entity, interp, current, previous] : group.each()) {
+        interp.angles[0] = glm::mix(previous.angles[0], current.angles[0], alpha);
+        interp.angles[1] = glm::mix(previous.angles[1], current.angles[1], alpha);
+        interp.angles[2] = glm::mix(previous.angles[2], current.angles[2], alpha);
+
+        // Figure out previous chunk-local floating-point coordinates transformed
+        // to the current WorldCoord's chunk domain coordinates; we're interpolating
+        // against these instead of using previous.position.local to prevent jittering
+        auto previous_shift = coord::to_relative(current.chunk, current.local, previous.chunk, previous.local);
+        auto previous_local = current.local + previous_shift;
+
+        interp.chunk.x = current.chunk.x;
+        interp.chunk.y = current.chunk.y;
+        interp.chunk.z = current.chunk.z;
+
+        interp.local.x = glm::mix(previous_local.x, current.local.x, alpha);
+        interp.local.y = glm::mix(previous_local.y, current.local.y, alpha);
+        interp.local.z = glm::mix(previous_local.z, current.local.z, alpha);
+    }
+}
+
+static void head_interpolate(float alpha)
+{
+    auto group = globals::dimension->entities.group<entity::client::HeadIntr>(entt::get<entity::Head, entity::client::HeadPrev>);
+
+    for(auto [entity, interp, current, previous] : group.each()) {
+        interp.angles[0] = glm::mix(previous.angles[0], current.angles[0], alpha);
+        interp.angles[1] = glm::mix(previous.angles[1], current.angles[1], alpha);
+        interp.angles[2] = glm::mix(previous.angles[2], current.angles[2], alpha);
+
+        interp.offset.x = glm::mix(previous.offset.x, current.offset.x, alpha);
+        interp.offset.y = glm::mix(previous.offset.y, current.offset.y, alpha);
+        interp.offset.z = glm::mix(previous.offset.z, current.offset.z, alpha);
+    }
+}
+
+void entity::interpolation::update(void)
+{
+    if(globals::dimension) {
+        auto alpha = static_cast<float>(globals::fixed_accumulator) / static_cast<float>(globals::fixed_frametime_us);
+        transform_interpolate(alpha);
+        head_interpolate(alpha);
+    }
+}
\ No newline at end of file
diff --git a/src/game/client/entity/interpolation.hh b/src/game/client/entity/interpolation.hh
new file mode 100644
index 0000000..6935fe8
--- /dev/null
+++ b/src/game/client/entity/interpolation.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace entity::interpolation
+{
+void update(void);
+} // namespace entity::interpolation
diff --git a/src/game/client/entity/listener.cc b/src/game/client/entity/listener.cc
new file mode 100644
index 0000000..a79e8a5
--- /dev/null
+++ b/src/game/client/entity/listener.cc
@@ -0,0 +1,42 @@
+#include "client/pch.hh"
+
+#include "client/entity/listener.hh"
+
+#include "core/config/number.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "client/entity/camera.hh"
+
+#include "client/sound/sound.hh"
+
+#include "client/const.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+void entity::listener::update(void)
+{
+    if(session::is_ingame()) {
+        const auto& velocity = globals::dimension->entities.get<entity::Velocity>(globals::player).value;
+        const auto& position = entity::camera::position_local;
+
+        alListener3f(AL_POSITION, position.x, position.y, position.z);
+        alListener3f(AL_VELOCITY, velocity.x, velocity.y, velocity.z);
+
+        float orientation[6];
+        orientation[0] = entity::camera::direction.x;
+        orientation[1] = entity::camera::direction.y;
+        orientation[2] = entity::camera::direction.z;
+        orientation[3] = DIR_UP<float>.x;
+        orientation[4] = DIR_UP<float>.y;
+        orientation[5] = DIR_UP<float>.z;
+
+        alListenerfv(AL_ORIENTATION, orientation);
+    }
+
+    alListenerf(AL_GAIN, glm::clamp(sound::volume_master.get_value() * 0.01f, 0.0f, 1.0f));
+}
diff --git a/src/game/client/entity/listener.hh b/src/game/client/entity/listener.hh
new file mode 100644
index 0000000..594cde1
--- /dev/null
+++ b/src/game/client/entity/listener.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace entity::listener
+{
+void update(void);
+} // namespace entity::listener
diff --git a/src/game/client/entity/player_look.cc b/src/game/client/entity/player_look.cc
new file mode 100644
index 0000000..0752e78
--- /dev/null
+++ b/src/game/client/entity/player_look.cc
@@ -0,0 +1,155 @@
+#include "client/pch.hh"
+
+#include "client/entity/player_look.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/angles.hh"
+
+#include "shared/entity/head.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "client/config/gamepad_axis.hh"
+#include "client/config/gamepad_button.hh"
+#include "client/config/keybind.hh"
+
+#include "client/gui/settings.hh"
+
+#include "client/io/gamepad.hh"
+#include "client/io/glfw.hh"
+
+#include "client/const.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static float PITCH_MIN = -1.0f * math::radians(90.0f);
+constexpr static float PITCH_MAX = +1.0f * math::radians(90.0f);
+
+// Mouse options
+static config::Boolean mouse_raw_input(true);
+static config::Unsigned mouse_sensitivity(25U, 1U, 100U);
+
+// Gamepad options
+static config::Float gamepad_fastlook_factor(1.5f, 1.0f, 5.0f);
+static config::Unsigned gamepad_accel_pitch(15U, 1U, 100U);
+static config::Unsigned gamepad_accel_yaw(25U, 1U, 100U);
+
+// Gamepad axes
+static config::GamepadAxis axis_pitch(GLFW_GAMEPAD_AXIS_LEFT_Y, false);
+static config::GamepadAxis axis_yaw(GLFW_GAMEPAD_AXIS_LEFT_X, false);
+
+// Gamepad buttons
+static config::GamepadButton button_fastlook(GLFW_GAMEPAD_BUTTON_LEFT_THUMB);
+
+static bool fastlook_enabled;
+static glm::fvec2 last_cursor;
+
+static void add_angles(float pitch, float yaw)
+{
+    if(session::is_ingame()) {
+        auto& head = globals::dimension->entities.get<entity::Head>(globals::player);
+
+        head.angles[0] += pitch;
+        head.angles[1] += yaw;
+        head.angles[0] = glm::clamp(head.angles[0], PITCH_MIN, PITCH_MAX);
+        head.angles = math::wrap_180(head.angles);
+
+        // Client-side head angles are not interpolated;
+        // Re-assigning the previous state after the current
+        // state has been already modified is certainly a way
+        // to circumvent the interpolation applied to anything with a head
+        globals::dimension->entities.emplace_or_replace<entity::client::HeadPrev>(globals::player, head);
+    }
+}
+
+static void on_glfw_cursor_pos(const io::GlfwCursorPosEvent& event)
+{
+    if(io::gamepad::available && io::gamepad::active.get_value()) {
+        // The player is assumed to be using
+        // a gamepad instead of mouse and keyboard
+        last_cursor = event.pos;
+        return;
+    }
+
+    if(globals::gui_screen || !session::is_ingame()) {
+        // UI is visible or we're not in-game
+        last_cursor = event.pos;
+        return;
+    }
+
+    auto dx = -0.01f * static_cast<float>(mouse_sensitivity.get_value()) * math::radians(event.pos.x - last_cursor.x);
+    auto dy = -0.01f * static_cast<float>(mouse_sensitivity.get_value()) * math::radians(event.pos.y - last_cursor.y);
+    add_angles(dy, dx);
+
+    last_cursor = event.pos;
+}
+
+static void on_gamepad_button(const io::GamepadButtonEvent& event)
+{
+    if(button_fastlook.equals(event.button)) {
+        fastlook_enabled = event.action == GLFW_PRESS;
+    }
+}
+
+void entity::player_look::init(void)
+{
+    globals::client_config.add_value("player_look.mouse.raw_input", mouse_raw_input);
+    globals::client_config.add_value("player_look.mouse.sensitivity", mouse_sensitivity);
+    globals::client_config.add_value("player_look.gamepad.fastlook_factor", gamepad_fastlook_factor);
+    globals::client_config.add_value("player_look.gamepad.accel_pitch", gamepad_accel_pitch);
+    globals::client_config.add_value("player_look.gamepad.accel_yaw", gamepad_accel_yaw);
+    globals::client_config.add_value("player_look.gp_axis.pitch", axis_pitch);
+    globals::client_config.add_value("player_look.gp_axis.yaw", axis_yaw);
+    globals::client_config.add_value("player_look.gp_button.fastlook", button_fastlook);
+
+    settings::add_slider(0, mouse_sensitivity, settings_location::MOUSE, "player_look.mouse.sensitivity", true);
+    settings::add_checkbox(1, mouse_raw_input, settings_location::MOUSE, "player_look.mouse.raw_input", true);
+
+    settings::add_slider(0, gamepad_accel_pitch, settings_location::GAMEPAD_GAMEPLAY, "player_look.gamepad.accel_pitch", false);
+    settings::add_slider(1, gamepad_accel_yaw, settings_location::GAMEPAD_GAMEPLAY, "player_look.gamepad.accel_yaw", false);
+    settings::add_gamepad_axis(2, axis_pitch, settings_location::GAMEPAD_GAMEPLAY, "player_look.gp_axis.pitch");
+    settings::add_gamepad_axis(3, axis_yaw, settings_location::GAMEPAD_GAMEPLAY, "player_look.gp_axis.yaw");
+    settings::add_slider(4, gamepad_fastlook_factor, settings_location::GAMEPAD_GAMEPLAY, "player_look.gamepad.fastlook_factor", true,
+        "%.02f");
+    settings::add_gamepad_button(5, button_fastlook, settings_location::GAMEPAD_GAMEPLAY, "player_look.gp_button.fastlook");
+
+    fastlook_enabled = false;
+    last_cursor.x = 0.5f * static_cast<float>(globals::width);
+    last_cursor.y = 0.5f * static_cast<float>(globals::height);
+
+    globals::dispatcher.sink<io::GlfwCursorPosEvent>().connect<&on_glfw_cursor_pos>();
+    globals::dispatcher.sink<io::GamepadButtonEvent>().connect<&on_gamepad_button>();
+}
+
+void entity::player_look::update_late(void)
+{
+    if(io::gamepad::available && io::gamepad::active.get_value() && !globals::gui_screen) {
+        auto pitch_value = axis_pitch.get_value(io::gamepad::state, io::gamepad::deadzone.get_value());
+        auto yaw_value = axis_yaw.get_value(io::gamepad::state, io::gamepad::deadzone.get_value());
+
+        if(fastlook_enabled) {
+            // Fastlook allows the camera to
+            // rotate quicker when a button is held down
+            pitch_value *= gamepad_fastlook_factor.get_value();
+            yaw_value *= gamepad_fastlook_factor.get_value();
+        }
+
+        pitch_value *= 0.001f * static_cast<float>(gamepad_accel_pitch.get_value());
+        yaw_value *= 0.001f * static_cast<float>(gamepad_accel_yaw.get_value());
+
+        add_angles(pitch_value, yaw_value);
+    }
+
+    if(!globals::gui_screen && session::is_ingame()) {
+        glfwSetInputMode(globals::window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
+        glfwSetInputMode(globals::window, GLFW_RAW_MOUSE_MOTION, mouse_raw_input.get_value());
+    }
+    else {
+        glfwSetInputMode(globals::window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
+        glfwSetInputMode(globals::window, GLFW_RAW_MOUSE_MOTION, false);
+    }
+}
diff --git a/src/game/client/entity/player_look.hh b/src/game/client/entity/player_look.hh
new file mode 100644
index 0000000..0ae18db
--- /dev/null
+++ b/src/game/client/entity/player_look.hh
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace entity::player_look
+{
+void init(void);
+void update_late(void);
+} // namespace entity::player_look
diff --git a/src/game/client/entity/player_move.cc b/src/game/client/entity/player_move.cc
new file mode 100644
index 0000000..4087b04
--- /dev/null
+++ b/src/game/client/entity/player_move.cc
@@ -0,0 +1,298 @@
+#include "client/pch.hh"
+
+#include "client/entity/player_move.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/angles.hh"
+#include "core/math/constexpr.hh"
+
+#include "shared/entity/grounded.hh"
+#include "shared/entity/head.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "client/config/gamepad_axis.hh"
+#include "client/config/gamepad_button.hh"
+#include "client/config/keybind.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/settings.hh"
+#include "client/gui/status_lines.hh"
+
+#include "client/io/gamepad.hh"
+
+#include "client/sound/sound.hh"
+
+#include "client/world/voxel_sounds.hh"
+
+#include "client/const.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+#include "client/toggles.hh"
+
+constexpr static std::uint64_t PMOVE_JUMP_COOLDOWN = 500000; // 0.5 seconds
+
+constexpr static float PMOVE_FOOTSTEP_SIZE = 2.0f;
+
+// Movement keys
+static config::KeyBind key_move_forward(GLFW_KEY_W);
+static config::KeyBind key_move_back(GLFW_KEY_S);
+static config::KeyBind key_move_left(GLFW_KEY_A);
+static config::KeyBind key_move_right(GLFW_KEY_D);
+static config::KeyBind key_move_down(GLFW_KEY_LEFT_SHIFT);
+static config::KeyBind key_move_up(GLFW_KEY_SPACE);
+
+// Movement gamepad axes
+static config::GamepadAxis axis_move_forward(GLFW_GAMEPAD_AXIS_RIGHT_X, false);
+static config::GamepadAxis axis_move_sideways(GLFW_GAMEPAD_AXIS_RIGHT_Y, false);
+
+// Movement gamepad buttons
+static config::GamepadButton button_move_down(GLFW_GAMEPAD_BUTTON_DPAD_DOWN);
+static config::GamepadButton button_move_up(GLFW_GAMEPAD_BUTTON_DPAD_UP);
+
+// General movement options
+static config::Boolean enable_speedometer(true);
+
+static glm::fvec3 movement_direction;
+
+static std::uint64_t next_jump_us;
+static float speedometer_value;
+static float footsteps_distance;
+
+static std::mt19937_64 pitch_random;
+static std::uniform_real_distribution<float> pitch_distrib;
+
+// Quake III's PM_Accelerate-ish function used for
+// conventional (gravity-affected non-flight) movement
+static glm::fvec3 pm_accelerate(const glm::fvec3& wishdir, const glm::fvec3& velocity, float wishspeed, float accel)
+{
+    auto current_speed = glm::dot(velocity, wishdir);
+    auto add_speed = wishspeed - current_speed;
+
+    if(add_speed <= 0.0f) {
+        // Not accelerating
+        return velocity;
+    }
+
+    auto accel_speed = glm::min(add_speed, accel * globals::fixed_frametime * wishspeed);
+
+    auto result = glm::fvec3(velocity);
+    result.x += accel_speed * wishdir.x;
+    result.z += accel_speed * wishdir.z;
+    return result;
+}
+
+// Conventional movement - velocity update when not on the ground
+static glm::fvec3 pm_air_move(const glm::fvec3& wishdir, const glm::fvec3& velocity)
+{
+    return pm_accelerate(wishdir, velocity, PMOVE_ACCELERATION_AIR, PMOVE_MAX_SPEED_AIR);
+}
+
+// Conventional movement - velocity uodate when on the ground
+static glm::fvec3 pm_ground_move(const glm::fvec3& wishdir, const glm::fvec3& velocity)
+{
+    if(auto speed = glm::length(velocity)) {
+        auto speed_drop = speed * PMOVE_FRICTION_GROUND * globals::fixed_frametime;
+        auto speed_factor = glm::max(speed - speed_drop, 0.0f) / speed;
+        return pm_accelerate(wishdir, velocity * speed_factor, PMOVE_ACCELERATION_GROUND, PMOVE_MAX_SPEED_GROUND);
+    }
+
+    return pm_accelerate(wishdir, velocity, PMOVE_ACCELERATION_GROUND, PMOVE_MAX_SPEED_GROUND);
+}
+
+// A simpler minecraft-like acceleration model
+// used whenever the TOGGLE_PM_FLIGHT is enabled
+static glm::fvec3 pm_flight_move(const glm::fvec3& wishdir)
+{
+    // FIXME: make it smoother
+    return wishdir * PMOVE_MAX_SPEED_AIR;
+}
+
+void entity::player_move::init(void)
+{
+    movement_direction = ZERO_VEC3<float>;
+
+    next_jump_us = 0x0000000000000000U;
+    speedometer_value = 0.0f;
+    footsteps_distance = 0.0f;
+
+    // UNDONE: make this a separate subsystem
+    pitch_random.seed(std::random_device()());
+    pitch_distrib = std::uniform_real_distribution<float>(0.9f, 1.1f);
+
+    globals::client_config.add_value("player_move.key.forward", key_move_forward);
+    globals::client_config.add_value("player_move.key.back", key_move_back);
+    globals::client_config.add_value("player_move.key.left", key_move_left);
+    globals::client_config.add_value("player_move.key.right", key_move_right);
+    globals::client_config.add_value("player_move.key.down", key_move_down);
+    globals::client_config.add_value("player_move.key.up", key_move_up);
+    globals::client_config.add_value("player_move.gp_axis.move_forward", axis_move_forward);
+    globals::client_config.add_value("player_move.gp_axis.move_sideways", axis_move_sideways);
+    globals::client_config.add_value("player_move.gp_button.move_down", button_move_down);
+    globals::client_config.add_value("player_move.gp_button.move_up", button_move_up);
+    globals::client_config.add_value("player_move.enable_speedometer", enable_speedometer);
+
+    settings::add_keybind(1, key_move_forward, settings_location::KEYBOARD_MOVEMENT, "player_move.key.forward");
+    settings::add_keybind(2, key_move_back, settings_location::KEYBOARD_MOVEMENT, "player_move.key.back");
+    settings::add_keybind(3, key_move_left, settings_location::KEYBOARD_MOVEMENT, "player_move.key.left");
+    settings::add_keybind(4, key_move_right, settings_location::KEYBOARD_MOVEMENT, "player_move.key.right");
+    settings::add_keybind(5, key_move_down, settings_location::KEYBOARD_MOVEMENT, "player_move.key.down");
+    settings::add_keybind(6, key_move_up, settings_location::KEYBOARD_MOVEMENT, "player_move.key.up");
+
+    settings::add_gamepad_axis(0, axis_move_forward, settings_location::GAMEPAD_MOVEMENT, "player_move.gp_axis.move_forward");
+    settings::add_gamepad_axis(1, axis_move_sideways, settings_location::GAMEPAD_MOVEMENT, "player_move.gp_axis.move_sideways");
+    settings::add_gamepad_button(2, button_move_down, settings_location::GAMEPAD_MOVEMENT, "player_move.gp_button.move_down");
+    settings::add_gamepad_button(3, button_move_up, settings_location::GAMEPAD_MOVEMENT, "player_move.gp_button.move_up");
+
+    settings::add_checkbox(2, enable_speedometer, settings_location::VIDEO_GUI, "player_move.enable_speedometer", true);
+}
+
+void entity::player_move::fixed_update(void)
+{
+    const auto& head = globals::dimension->entities.get<entity::Head>(globals::player);
+    auto& transform = globals::dimension->entities.get<entity::Transform>(globals::player);
+    auto& velocity = globals::dimension->entities.get<entity::Velocity>(globals::player);
+
+    // Interpolation - preserve current component states
+    globals::dimension->entities.emplace_or_replace<entity::client::TransformPrev>(globals::player, transform);
+
+    glm::fvec3 forward, right;
+    math::vectors(glm::fvec3(0.0f, head.angles[1], 0.0f), &forward, &right, nullptr);
+
+    glm::fvec3 wishdir = ZERO_VEC3<float>;
+    glm::fvec3 movevars = glm::fvec3(movement_direction.x, 0.0f, movement_direction.z);
+    wishdir.x = glm::dot(movevars, right);
+    wishdir.z = glm::dot(movevars, forward);
+
+    if(toggles::get(TOGGLE_PM_FLIGHT)) {
+        velocity.value = pm_flight_move(glm::fvec3(wishdir.x, movement_direction.y, wishdir.z));
+        return;
+    }
+
+    auto grounded = globals::dimension->entities.try_get<entity::Grounded>(globals::player);
+    auto velocity_horizontal = glm::fvec3(velocity.value.x, 0.0f, velocity.value.z);
+
+    if(grounded) {
+        auto new_velocity = pm_ground_move(wishdir, velocity_horizontal);
+        velocity.value.x = new_velocity.x;
+        velocity.value.z = new_velocity.z;
+
+        auto new_speed = glm::length(new_velocity);
+
+        if(new_speed > 0.01f) {
+            footsteps_distance += globals::fixed_frametime * new_speed;
+        }
+        else {
+            footsteps_distance = 0.0f;
+        }
+
+        if(footsteps_distance >= PMOVE_FOOTSTEP_SIZE) {
+            if(auto effect = world::voxel_sounds::get_footsteps(grounded->surface)) {
+                sound::play_player(effect, false, pitch_distrib(pitch_random));
+            }
+
+            footsteps_distance = 0.0f;
+        }
+    }
+    else {
+        auto new_velocity = pm_air_move(wishdir, velocity_horizontal);
+        velocity.value.x = new_velocity.x;
+        velocity.value.z = new_velocity.z;
+    }
+
+    if(movement_direction.y == 0.0f) {
+        // Allow players to queue bunny-jumps by quickly
+        // releasing and pressing the jump key again without a cooldown
+        next_jump_us = 0x0000000000000000U;
+        return;
+    }
+
+    if(grounded && (movement_direction.y > 0.0f) && (globals::curtime >= next_jump_us)) {
+        velocity.value.y = -PMOVE_JUMP_FORCE * globals::dimension->get_gravity();
+
+        auto new_speed = glm::length(glm::fvec2(velocity.value.x, velocity.value.z));
+        auto new_speed_text = std::format("{:.02f} M/S", new_speed);
+        auto speed_change = new_speed - speedometer_value;
+
+        speedometer_value = new_speed;
+
+        next_jump_us = globals::curtime + PMOVE_JUMP_COOLDOWN;
+
+        if(enable_speedometer.get_value()) {
+            if(glm::abs(speed_change) < 0.01f) {
+                // No considerable speed increase within
+                // the precision we use to draw the speedometer
+                gui::status_lines::set(gui::STATUS_DEBUG, new_speed_text, ImVec4(0.7f, 0.7f, 0.7f, 1.0f), 1.0f);
+            }
+            else if(speed_change < 0.0f) {
+                // Speed change is negative, we are actively
+                // slowing down; use the red color for the status line
+                gui::status_lines::set(gui::STATUS_DEBUG, new_speed_text, ImVec4(1.0f, 0.0f, 0.0f, 1.0f), 1.0f);
+            }
+            else {
+                // Speed change is positive, we are actively
+                // speeding up; use the green color for the status line
+                gui::status_lines::set(gui::STATUS_DEBUG, new_speed_text, ImVec4(0.0f, 1.0f, 0.0f, 1.0f), 1.0f);
+            }
+        }
+
+        if(auto effect = world::voxel_sounds::get_footsteps(grounded->surface)) {
+            sound::play_player(effect, false, 1.0f);
+        }
+    }
+}
+
+void entity::player_move::update_late(void)
+{
+    movement_direction = ZERO_VEC3<float>;
+
+    if(globals::gui_screen || !session::is_ingame()) {
+        // We're either disconnected or have the
+        // UI opened up; anyways we shouldn't move
+        return;
+    }
+
+    if(io::gamepad::available && io::gamepad::active.get_value()) {
+        if(button_move_down.is_pressed(io::gamepad::state)) {
+            movement_direction += DIR_DOWN<float>;
+        }
+
+        if(button_move_up.is_pressed(io::gamepad::state)) {
+            movement_direction += DIR_UP<float>;
+        }
+
+        movement_direction.x += axis_move_sideways.get_value(io::gamepad::state, io::gamepad::deadzone.get_value());
+        movement_direction.z -= axis_move_forward.get_value(io::gamepad::state, io::gamepad::deadzone.get_value());
+    }
+    else {
+        if(GLFW_PRESS == glfwGetKey(globals::window, key_move_forward.get_key())) {
+            movement_direction += DIR_FORWARD<float>;
+        }
+
+        if(GLFW_PRESS == glfwGetKey(globals::window, key_move_back.get_key())) {
+            movement_direction += DIR_BACK<float>;
+        }
+
+        if(GLFW_PRESS == glfwGetKey(globals::window, key_move_left.get_key())) {
+            movement_direction += DIR_LEFT<float>;
+        }
+
+        if(GLFW_PRESS == glfwGetKey(globals::window, key_move_right.get_key())) {
+            movement_direction += DIR_RIGHT<float>;
+        }
+
+        if(GLFW_PRESS == glfwGetKey(globals::window, key_move_down.get_key())) {
+            movement_direction += DIR_DOWN<float>;
+        }
+
+        if(GLFW_PRESS == glfwGetKey(globals::window, key_move_up.get_key())) {
+            movement_direction += DIR_UP<float>;
+        }
+    }
+}
diff --git a/src/game/client/entity/player_move.hh b/src/game/client/entity/player_move.hh
new file mode 100644
index 0000000..8c033cc
--- /dev/null
+++ b/src/game/client/entity/player_move.hh
@@ -0,0 +1,15 @@
+#pragma once
+
+constexpr static float PMOVE_MAX_SPEED_AIR = 16.0f;
+constexpr static float PMOVE_MAX_SPEED_GROUND = 8.0f;
+constexpr static float PMOVE_ACCELERATION_AIR = 3.0f;
+constexpr static float PMOVE_ACCELERATION_GROUND = 6.0f;
+constexpr static float PMOVE_FRICTION_GROUND = 10.0f;
+constexpr static float PMOVE_JUMP_FORCE = 0.275f;
+
+namespace entity::player_move
+{
+void init(void);
+void fixed_update(void);
+void update_late(void);
+} // namespace entity::player_move
diff --git a/src/game/client/entity/sound_emitter.cc b/src/game/client/entity/sound_emitter.cc
new file mode 100644
index 0000000..57909ec
--- /dev/null
+++ b/src/game/client/entity/sound_emitter.cc
@@ -0,0 +1,63 @@
+#include "client/pch.hh"
+
+#include "client/entity/sound_emitter.hh"
+
+#include "core/config/number.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/coord.hh"
+
+#include "client/entity/camera.hh"
+
+#include "client/sound/sound.hh"
+
+#include "client/globals.hh"
+
+entity::SoundEmitter::SoundEmitter(void)
+{
+    alGenSources(1, &source);
+    sound = nullptr;
+}
+
+entity::SoundEmitter::~SoundEmitter(void)
+{
+    alSourceStop(source);
+    alDeleteSources(1, &source);
+}
+
+void entity::SoundEmitter::update(void)
+{
+    if(globals::dimension) {
+        const auto view = globals::dimension->entities.view<entity::SoundEmitter>();
+
+        const auto& pivot = entity::camera::position_chunk;
+        const auto gain = glm::clamp(sound::volume_effects.get_value() * 0.01f, 0.0f, 1.0f);
+
+        for(const auto [entity, emitter] : view.each()) {
+            alSourcef(emitter.source, AL_GAIN, gain);
+
+            if(const auto transform = globals::dimension->entities.try_get<entity::client::TransformIntr>(entity)) {
+                auto position = coord::to_relative(pivot, transform->chunk, transform->local);
+                alSource3f(emitter.source, AL_POSITION, position.x, position.y, position.z);
+            }
+
+            if(const auto velocity = globals::dimension->entities.try_get<entity::Velocity>(entity)) {
+                alSource3f(emitter.source, AL_VELOCITY, velocity->value.x, velocity->value.y, velocity->value.z);
+            }
+
+            ALint source_state;
+            alGetSourcei(emitter.source, AL_SOURCE_STATE, &source_state);
+
+            if(source_state == AL_STOPPED) {
+                alSourceRewind(emitter.source);
+                emitter.sound = nullptr;
+            }
+        }
+    }
+}
diff --git a/src/game/client/entity/sound_emitter.hh b/src/game/client/entity/sound_emitter.hh
new file mode 100644
index 0000000..72a3f74
--- /dev/null
+++ b/src/game/client/entity/sound_emitter.hh
@@ -0,0 +1,20 @@
+#pragma once
+
+#include "core/resource/resource.hh"
+
+struct SoundEffect;
+
+namespace entity
+{
+struct SoundEmitter final {
+    resource_ptr<SoundEffect> sound;
+    ALuint source;
+
+public:
+    explicit SoundEmitter(void);
+    virtual ~SoundEmitter(void);
+
+public:
+    static void update(void);
+};
+} // namespace entity
diff --git a/src/game/client/experiments.cc b/src/game/client/experiments.cc
new file mode 100644
index 0000000..eb415f7
--- /dev/null
+++ b/src/game/client/experiments.cc
@@ -0,0 +1,84 @@
+#include "client/pch.hh"
+
+#include "client/experiments.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/item_registry.hh"
+
+#include "shared/game_items.hh"
+#include "shared/game_voxels.hh"
+
+#include "client/gui/chat.hh"
+#include "client/gui/hotbar.hh"
+#include "client/gui/status_lines.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/world/player_target.hh"
+
+#include "client/globals.hh"
+#include "client/session.hh"
+
+static void on_glfw_mouse_button(const io::GlfwMouseButtonEvent& event)
+{
+    if(!globals::gui_screen && session::is_ingame()) {
+        if((event.action == GLFW_PRESS) && world::player_target::voxel) {
+            if(event.button == GLFW_MOUSE_BUTTON_LEFT) {
+                experiments::attack();
+                return;
+            }
+
+            if(event.button == GLFW_MOUSE_BUTTON_RIGHT) {
+                experiments::interact();
+                return;
+            }
+        }
+    }
+}
+
+void experiments::init(void)
+{
+    globals::dispatcher.sink<io::GlfwMouseButtonEvent>().connect<&on_glfw_mouse_button>();
+}
+
+void experiments::init_late(void)
+{
+    gui::hotbar::slots[0] = game_items::cobblestone;
+    gui::hotbar::slots[1] = game_items::stone;
+    gui::hotbar::slots[2] = game_items::dirt;
+    gui::hotbar::slots[3] = game_items::grass;
+    gui::hotbar::slots[4] = game_items::oak_leaves;
+    gui::hotbar::slots[5] = game_items::oak_planks;
+    gui::hotbar::slots[6] = game_items::oak_log;
+    gui::hotbar::slots[7] = game_items::glass;
+    gui::hotbar::slots[8] = game_items::slime;
+}
+
+void experiments::shutdown(void)
+{
+}
+
+void experiments::update(void)
+{
+}
+
+void experiments::update_late(void)
+{
+}
+
+void experiments::attack(void)
+{
+    globals::dimension->set_voxel(nullptr, world::player_target::coord);
+}
+
+void experiments::interact(void)
+{
+    auto active_item = gui::hotbar::slots[gui::hotbar::active_slot];
+
+    if(active_item) {
+        if(auto place_voxel = active_item->get_place_voxel()) {
+            globals::dimension->set_voxel(place_voxel, world::player_target::coord + world::player_target::normal);
+            return;
+        }
+    }
+}
diff --git a/src/game/client/experiments.hh b/src/game/client/experiments.hh
new file mode 100644
index 0000000..ff2cbad
--- /dev/null
+++ b/src/game/client/experiments.hh
@@ -0,0 +1,16 @@
+#pragma once
+
+namespace experiments
+{
+void init(void);
+void init_late(void);
+void shutdown(void);
+void update(void);
+void update_late(void);
+} // namespace experiments
+
+namespace experiments
+{
+void attack(void);
+void interact(void);
+} // namespace experiments
diff --git a/src/game/client/game.cc b/src/game/client/game.cc
new file mode 100644
index 0000000..4b8ffc8
--- /dev/null
+++ b/src/game/client/game.cc
@@ -0,0 +1,708 @@
+#include "client/pch.hh"
+
+#include "client/game.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+#include "core/config/string.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/angles.hh"
+
+#include "core/resource/resource.hh"
+
+#include "core/io/physfs.hh"
+
+#include "shared/entity/collision.hh"
+#include "shared/entity/gravity.hh"
+#include "shared/entity/head.hh"
+#include "shared/entity/player.hh"
+#include "shared/entity/stasis.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/game_items.hh"
+#include "shared/game_voxels.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/item_registry.hh"
+#include "shared/world/ray_dda.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+#include "shared/protocol.hh"
+
+#include "client/config/keybind.hh"
+
+#include "client/entity/camera.hh"
+#include "client/entity/interpolation.hh"
+#include "client/entity/listener.hh"
+#include "client/entity/player_look.hh"
+#include "client/entity/player_move.hh"
+#include "client/entity/sound_emitter.hh"
+
+#include "client/gui/background.hh"
+#include "client/gui/bother.hh"
+#include "client/gui/chat.hh"
+#include "client/gui/crosshair.hh"
+#include "client/gui/direct_connection.hh"
+#include "client/gui/gui_screen.hh"
+#include "client/gui/hotbar.hh"
+#include "client/gui/language.hh"
+#include "client/gui/main_menu.hh"
+#include "client/gui/message_box.hh"
+#include "client/gui/metrics.hh"
+#include "client/gui/play_menu.hh"
+#include "client/gui/progress_bar.hh"
+#include "client/gui/scoreboard.hh"
+#include "client/gui/settings.hh"
+#include "client/gui/splash.hh"
+#include "client/gui/status_lines.hh"
+#include "client/gui/window_title.hh"
+
+#include "client/io/gamepad.hh"
+#include "client/io/glfw.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "client/sound/sound.hh"
+
+#include "client/world/chunk_mesher.hh"
+#include "client/world/chunk_renderer.hh"
+#include "client/world/chunk_visibility.hh"
+#include "client/world/outline.hh"
+#include "client/world/player_target.hh"
+#include "client/world/skybox.hh"
+#include "client/world/voxel_anims.hh"
+#include "client/world/voxel_atlas.hh"
+#include "client/world/voxel_sounds.hh"
+
+#include "client/const.hh"
+#include "client/experiments.hh"
+#include "client/globals.hh"
+#include "client/receive.hh"
+#include "client/screenshot.hh"
+#include "client/session.hh"
+#include "client/toggles.hh"
+
+config::Boolean client_game::streamer_mode(false);
+config::Boolean client_game::vertical_sync(true);
+config::Boolean client_game::world_curvature(true);
+config::Unsigned client_game::fog_mode(1U, 0U, 2U);
+config::String client_game::username("player");
+
+bool client_game::hide_hud = false;
+
+static config::KeyBind hide_hud_toggle(GLFW_KEY_F1);
+
+static ImFont* load_font(std::string_view path, float size, ImFontConfig& font_config, ImVector<ImWchar>& ranges)
+{
+    std::vector<std::byte> font;
+
+    if(!io::read_file(path, font)) {
+        spdlog::error("{}: utils::read_file failed", path);
+        std::terminate();
+    }
+
+    auto& io = ImGui::GetIO();
+    auto font_ptr = io.Fonts->AddFontFromMemoryTTF(font.data(), static_cast<int>(font.size()), size, &font_config, ranges.Data);
+
+    if(font_ptr == nullptr) {
+        spdlog::error("{}: AddFontFromMemoryTTF failed", path);
+        std::terminate();
+    }
+
+    return font_ptr;
+}
+
+static void on_glfw_framebuffer_size(const io::GlfwFramebufferSizeEvent& event)
+{
+    if(globals::world_fbo) {
+        glDeleteRenderbuffers(1, &globals::world_fbo_depth);
+        glDeleteTextures(1, &globals::world_fbo_color);
+        glDeleteFramebuffers(1, &globals::world_fbo);
+    }
+
+    glGenFramebuffers(1, &globals::world_fbo);
+    glGenTextures(1, &globals::world_fbo_color);
+    glGenRenderbuffers(1, &globals::world_fbo_depth);
+
+    glBindTexture(GL_TEXTURE_2D, globals::world_fbo_color);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, event.size.x, event.size.y, 0, GL_RED, GL_UNSIGNED_BYTE, nullptr);
+
+    glBindRenderbuffer(GL_RENDERBUFFER, globals::world_fbo_depth);
+    glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, event.size.x, event.size.y);
+
+    glBindFramebuffer(GL_FRAMEBUFFER, globals::world_fbo);
+    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, globals::world_fbo_color, 0);
+    glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, globals::world_fbo_depth);
+
+    if(glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
+        spdlog::critical("opengl: world framebuffer is incomplete");
+        glDeleteRenderbuffers(1, &globals::world_fbo_depth);
+        glDeleteTextures(1, &globals::world_fbo_color);
+        glDeleteFramebuffers(1, &globals::world_fbo);
+        std::terminate();
+    }
+}
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if(!globals::gui_keybind_ptr && hide_hud_toggle.equals(event.key) && (event.action == GLFW_PRESS)) {
+        client_game::hide_hud = !client_game::hide_hud;
+    }
+}
+
+void client_game::init(void)
+{
+    auto& io = ImGui::GetIO();
+    io.ConfigFlags &= ~ImGuiConfigFlags_NavEnableGamepad;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+    io.IniFilename = nullptr;
+    io.Fonts->Clear();
+
+    ImFontConfig font_config;
+    font_config.FontDataOwnedByAtlas = false;
+
+    ImFontGlyphRangesBuilder builder;
+    builder.AddRanges(io.Fonts->GetGlyphRangesDefault());
+    builder.AddRanges(io.Fonts->GetGlyphRangesCyrillic());
+
+    ImVector<ImWchar> ranges;
+    builder.BuildRanges(&ranges);
+
+    globals::font_unscii16 = load_font("fonts/unscii-16.ttf", 16.0f, font_config, ranges);
+    globals::font_unscii8 = load_font("fonts/unscii-8.ttf", 8.0f, font_config, ranges);
+
+    gui::client_splash::init();
+    gui::client_splash::render();
+
+    globals::client_config.add_value("game.streamer_mode", client_game::streamer_mode);
+    globals::client_config.add_value("game.vertical_sync", client_game::vertical_sync);
+    globals::client_config.add_value("game.world_curvature", client_game::world_curvature);
+    globals::client_config.add_value("game.fog_mode", client_game::fog_mode);
+    globals::client_config.add_value("game.username", client_game::username);
+    globals::client_config.add_value("game.key.toggle_hide_hud", hide_hud_toggle);
+
+    settings::init();
+
+    settings::add_checkbox(0, client_game::streamer_mode, settings_location::VIDEO_GUI, "game.streamer_mode", true);
+    settings::add_checkbox(5, client_game::vertical_sync, settings_location::VIDEO, "game.vertical_sync", false);
+    settings::add_checkbox(4, client_game::world_curvature, settings_location::VIDEO, "game.world_curvature", true);
+    settings::add_stepper(3, client_game::fog_mode, settings_location::VIDEO, "game.fog_mode", false);
+    settings::add_input(1, client_game::username, settings_location::GENERAL, "game.username", true, false);
+    settings::add_keybind(4, hide_hud_toggle, settings_location::KEYBOARD_MISC, "game.key.toggle_hide_hud");
+
+    globals::client_host = enet_host_create(nullptr, 1, 1, 0, 0);
+
+    if(!globals::client_host) {
+        spdlog::critical("game: unable to setup an ENet host");
+        std::terminate();
+    }
+
+    gui::language::init();
+
+    session::init();
+
+    entity::player_look::init();
+    entity::player_move::init();
+    world::player_target::init();
+
+    io::gamepad::init();
+
+    entity::camera::init();
+
+    world::voxel_anims::init();
+
+    world::outline::init();
+    world::chunk_mesher::init();
+    world::chunk_renderer::init();
+
+    globals::world_fbo = 0;
+    globals::world_fbo_color = 0;
+    globals::world_fbo_depth = 0;
+
+    world::voxel_sounds::init();
+
+    world::skybox::init();
+
+    ImGuiStyle& style = ImGui::GetStyle();
+
+    // Black buttons on a dark background
+    // may be harder to read than the text on them
+    style.FrameBorderSize = 1.0;
+    style.TabBorderSize = 1.0;
+
+    // Rounding on elements looks cool but I am
+    // aiming for a more or less blocky and
+    // visually simple HiDPI-friendly UI style
+    style.TabRounding = 0.0f;
+    style.GrabRounding = 0.0f;
+    style.ChildRounding = 0.0f;
+    style.FrameRounding = 0.0f;
+    style.PopupRounding = 0.0f;
+    style.WindowRounding = 0.0f;
+    style.ScrollbarRounding = 0.0f;
+
+    style.Colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    style.Colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
+    style.Colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
+    style.Colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    style.Colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
+    style.Colors[ImGuiCol_Border] = ImVec4(0.79f, 0.79f, 0.79f, 0.50f);
+    style.Colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    style.Colors[ImGuiCol_FrameBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.54f);
+    style.Colors[ImGuiCol_FrameBgHovered] = ImVec4(0.36f, 0.36f, 0.36f, 0.40f);
+    style.Colors[ImGuiCol_FrameBgActive] = ImVec4(0.63f, 0.63f, 0.63f, 0.67f);
+    style.Colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
+    style.Colors[ImGuiCol_TitleBgActive] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
+    style.Colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
+    style.Colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
+    style.Colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.00f, 0.00f, 0.00f, 0.75f);
+    style.Colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
+    style.Colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.25f, 0.25f, 0.25f, 1.00f);
+    style.Colors[ImGuiCol_CheckMark] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    style.Colors[ImGuiCol_SliderGrab] = ImVec4(0.81f, 0.81f, 0.81f, 0.75f);
+    style.Colors[ImGuiCol_SliderGrabActive] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_Button] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_ButtonHovered] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
+    style.Colors[ImGuiCol_ButtonActive] = ImVec4(0.25f, 0.25f, 0.25f, 1.00f);
+    style.Colors[ImGuiCol_Header] = ImVec4(0.00f, 0.00f, 0.00f, 0.75f);
+    style.Colors[ImGuiCol_HeaderHovered] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
+    style.Colors[ImGuiCol_HeaderActive] = ImVec4(0.25f, 0.25f, 0.25f, 1.00f);
+    style.Colors[ImGuiCol_Separator] = ImVec4(0.49f, 0.49f, 0.49f, 0.50f);
+    style.Colors[ImGuiCol_SeparatorHovered] = ImVec4(0.56f, 0.56f, 0.56f, 0.78f);
+    style.Colors[ImGuiCol_SeparatorActive] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
+    style.Colors[ImGuiCol_ResizeGrip] = ImVec4(0.34f, 0.34f, 0.34f, 0.20f);
+    style.Colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.57f, 0.57f, 0.57f, 0.67f);
+    style.Colors[ImGuiCol_ResizeGripActive] = ImVec4(1.00f, 1.00f, 1.00f, 0.95f);
+    style.Colors[ImGuiCol_Tab] = ImVec4(0.00f, 0.00f, 0.00f, 0.75f);
+    style.Colors[ImGuiCol_TabHovered] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
+    style.Colors[ImGuiCol_TabActive] = ImVec4(0.25f, 0.25f, 0.25f, 1.00f);
+    style.Colors[ImGuiCol_TabUnfocused] = ImVec4(0.13f, 0.13f, 0.13f, 0.97f);
+    style.Colors[ImGuiCol_TabUnfocusedActive] = ImVec4(0.44f, 0.44f, 0.44f, 1.00f);
+    style.Colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
+    style.Colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.69f, 0.00f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_PlotHistogram] = ImVec4(0.00f, 1.00f, 0.20f, 1.00f);
+    style.Colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
+    style.Colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f);
+    style.Colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f);
+    style.Colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    style.Colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
+    style.Colors[ImGuiCol_TextSelectedBg] = ImVec4(0.61f, 0.61f, 0.61f, 0.35f);
+    style.Colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_NavHighlight] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
+    style.Colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+    style.Colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
+    style.Colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
+
+    // Making my own Game UI for Source Engine
+    // taught me one important thing: dimensions
+    // of UI elements must be calculated at semi-runtime
+    // so there's simply no point for an INI file.
+    io.IniFilename = nullptr;
+
+    toggles::init();
+
+    gui::background::init();
+
+    gui::scoreboard::init();
+
+    gui::client_chat::init();
+
+    gui::bother::init();
+
+    gui::main_menu::init();
+    gui::play_menu::init();
+    gui::progress_bar::init();
+    gui::message_box::init();
+    gui::direct_connection::init();
+
+    gui::crosshair::init();
+    gui::hotbar::init();
+    gui::metrics::init();
+    gui::status_lines::init();
+
+    screenshot::init();
+
+    globals::gui_keybind_ptr = nullptr;
+    globals::gui_scale = 0U;
+    globals::gui_screen = GUI_MAIN_MENU;
+
+    sound::init_config();
+
+    if(globals::sound_ctx) {
+        sound::init();
+    }
+
+    client_receive::init();
+
+    experiments::init();
+
+    globals::dispatcher.sink<io::GlfwFramebufferSizeEvent>().connect<&on_glfw_framebuffer_size>();
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+}
+
+void client_game::init_late(void)
+{
+    toggles::init_late();
+
+    if(globals::sound_ctx) {
+        sound::init_late();
+    }
+
+    gui::language::init_late();
+
+    settings::init_late();
+
+    gui::client_chat::init_late();
+
+    gui::status_lines::init_late();
+
+    game_voxels::populate();
+    game_items::populate();
+
+    std::size_t max_texture_count = 0;
+
+    // Figure out the total texture count
+    // NOTE: this is very debug, early and a quite
+    // conservative limit choice; there must be a better
+    // way to make this limit way smaller than it currently is
+    for(const auto& voxel : world::voxel_registry::voxels) {
+        max_texture_count += voxel->get_default_textures().size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_NORTH).size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_SOUTH).size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_EAST).size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_WEST).size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_TOP).size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_BOTTOM).size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_CROSS_NWSE).size();
+        max_texture_count += voxel->get_face_textures(world::VFACE_CROSS_NESW).size();
+    }
+
+    // UNDONE: asset packs for non-16x16 stuff
+    world::voxel_atlas::create(16, 16, max_texture_count);
+
+    for(auto& voxel : world::voxel_registry::voxels) {
+        constexpr std::array faces = {
+            world::VFACE_NORTH,
+            world::VFACE_SOUTH,
+            world::VFACE_EAST,
+            world::VFACE_WEST,
+            world::VFACE_TOP,
+            world::VFACE_BOTTOM,
+            world::VFACE_CROSS_NWSE,
+            world::VFACE_CROSS_NESW,
+        };
+
+        for(auto face : faces) {
+            if(auto strip = world::voxel_atlas::find_or_load(voxel->get_face_textures(face))) {
+                voxel->set_face_cache(face, strip->offset, strip->plane);
+                continue;
+            }
+
+            spdlog::critical("client_gl: {}: failed to load atlas strips", voxel->get_name());
+            std::terminate();
+        }
+    }
+
+    world::voxel_atlas::generate_mipmaps();
+
+    for(auto& item : world::item_registry::items) {
+        item->set_cached_texture(resource::load<TextureGUI>(item->get_texture(), TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T));
+    }
+
+    experiments::init_late();
+
+    gui::client_splash::init_late();
+
+    gui::window_title::update();
+}
+
+void client_game::shutdown(void)
+{
+    world::voxel_sounds::shutdown();
+
+    experiments::shutdown();
+
+    session::shutdown();
+
+    if(globals::sound_ctx) {
+        sound::shutdown();
+    }
+
+    gui::hotbar::shutdown();
+    gui::main_menu::shutdown();
+    gui::play_menu::shutdown();
+
+    gui::bother::shutdown();
+
+    gui::client_chat::shutdown();
+
+    gui::background::shutdown();
+
+    gui::crosshair::shutdown();
+
+    delete globals::dimension;
+    globals::player = entt::null;
+    globals::dimension = nullptr;
+
+    world::item_registry::purge();
+    world::voxel_registry::purge();
+
+    world::voxel_atlas::destroy();
+
+    glDeleteRenderbuffers(1, &globals::world_fbo_depth);
+    glDeleteTextures(1, &globals::world_fbo_color);
+    glDeleteFramebuffers(1, &globals::world_fbo);
+
+    world::outline::shutdown();
+    world::chunk_renderer::shutdown();
+    world::chunk_mesher::shutdown();
+
+    enet_host_destroy(globals::client_host);
+}
+
+void client_game::fixed_update(void)
+{
+    entity::player_move::fixed_update();
+
+    // Only update world simulation gamesystems
+    // if the player can actually observe all the
+    // changes these gamesystems cause visually
+    if(session::is_ingame()) {
+        entity::Collision::fixed_update(globals::dimension);
+        entity::Velocity::fixed_update(globals::dimension);
+        entity::Transform::fixed_update(globals::dimension);
+        entity::Gravity::fixed_update(globals::dimension);
+        entity::Stasis::fixed_update(globals::dimension);
+    }
+}
+
+void client_game::fixed_update_late(void)
+{
+    if(session::is_ingame()) {
+        const auto& head = globals::dimension->entities.get<entity::Head>(globals::player);
+        const auto& transform = globals::dimension->entities.get<entity::Transform>(globals::player);
+        const auto& velocity = globals::dimension->entities.get<entity::Velocity>(globals::player);
+
+        protocol::EntityHead head_packet;
+        head_packet.entity = entt::null; // ignored by server
+        head_packet.angles = head.angles;
+
+        protocol::EntityTransform transform_packet;
+        transform_packet.entity = entt::null; // ignored by server
+        transform_packet.angles = transform.angles;
+        transform_packet.chunk = transform.chunk;
+        transform_packet.local = transform.local;
+
+        protocol::EntityVelocity velocity_packet;
+        velocity_packet.entity = entt::null; // ignored by server
+        velocity_packet.value = velocity.value;
+
+        protocol::send(session::peer, protocol::encode(head_packet));
+        protocol::send(session::peer, protocol::encode(transform_packet));
+        protocol::send(session::peer, protocol::encode(velocity_packet));
+    }
+}
+
+void client_game::update(void)
+{
+    if(session::is_ingame()) {
+        if(toggles::get(TOGGLE_PM_FLIGHT)) {
+            globals::dimension->entities.remove<entity::Gravity>(globals::player);
+        }
+        else {
+            globals::dimension->entities.emplace_or_replace<entity::Gravity>(globals::player);
+        }
+    }
+
+    if(globals::sound_ctx) {
+        sound::update();
+
+        entity::listener::update();
+
+        entity::SoundEmitter::update();
+    }
+
+    entity::interpolation::update();
+
+    world::player_target::update();
+
+    entity::camera::update();
+
+    world::voxel_anims::update();
+
+    world::chunk_mesher::update();
+
+    gui::client_chat::update();
+
+    experiments::update();
+
+    constexpr auto half_base_width = 0.5f * static_cast<float>(BASE_WIDTH);
+    constexpr auto half_base_height = 0.5f * static_cast<float>(BASE_HEIGHT);
+
+    auto twice_scale_x = static_cast<float>(globals::width) / half_base_width;
+    auto twice_scale_y = static_cast<float>(globals::height) / half_base_height;
+
+    auto scale_x = glm::max(1.0f, 0.5f * glm::floor(twice_scale_x));
+    auto scale_y = glm::max(1.0f, 0.5f * glm::floor(twice_scale_y));
+    auto scale_min = static_cast<unsigned int>(glm::ceil(glm::min(scale_x, scale_y)));
+    auto scale_int = glm::max<unsigned int>(1U, (scale_min / 2U) * 2U);
+
+    auto& io = ImGui::GetIO();
+    io.FontGlobalScale = scale_int;
+    globals::gui_scale = scale_int;
+}
+
+void client_game::update_late(void)
+{
+    ENetEvent enet_event;
+
+    while(0 < enet_host_service(globals::client_host, &enet_event, 0)) {
+        switch(enet_event.type) {
+            case ENET_EVENT_TYPE_CONNECT:
+                session::send_login_request();
+                break;
+            case ENET_EVENT_TYPE_DISCONNECT:
+                session::invalidate();
+                break;
+            case ENET_EVENT_TYPE_RECEIVE:
+                protocol::decode(globals::dispatcher, enet_event.packet, enet_event.peer);
+                enet_packet_destroy(enet_event.packet);
+                break;
+        }
+    }
+
+    entity::player_look::update_late();
+    entity::player_move::update_late();
+
+    gui::play_menu::update_late();
+
+    gui::bother::update_late();
+
+    experiments::update_late();
+
+    io::gamepad::update_late();
+
+    world::chunk_visibility::update_late();
+
+    if(client_game::vertical_sync.get_value()) {
+        glfwSwapInterval(1);
+    }
+    else {
+        glfwSwapInterval(0);
+    }
+}
+
+void client_game::render(void)
+{
+    glViewport(0, 0, globals::width, globals::height);
+    glBindFramebuffer(GL_FRAMEBUFFER, globals::world_fbo);
+    glClearColor(world::skybox::fog_color.r, world::skybox::fog_color.g, world::skybox::fog_color.b, 1.000f);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    if(globals::dimension) {
+        world::chunk_renderer::render();
+    }
+
+    glEnable(GL_DEPTH_TEST);
+
+    world::player_target::render();
+
+    if(globals::dimension) {
+        auto group = globals::dimension->entities.group(
+            entt::get<entity::Player, entity::Collision, entity::client::HeadIntr, entity::client::TransformIntr>);
+
+        world::outline::prepare();
+
+        for(const auto [entity, collision, head, transform] : group.each()) {
+            if(entity == globals::player) {
+                // Don't render ourselves
+                continue;
+            }
+
+            glm::fvec3 forward;
+            math::vectors(transform.angles + head.angles, forward);
+            forward *= 2.0f;
+
+            glm::fvec3 hull_size = collision.aabb.max - collision.aabb.min;
+            glm::fvec3 hull_fpos = transform.local + collision.aabb.min;
+            glm::fvec3 look = transform.local + head.offset;
+
+            world::outline::cube(transform.chunk, hull_fpos, hull_size, 1.0f, glm::fvec4(1.0f, 0.0f, 0.0f, 1.0f));
+            world::outline::line(transform.chunk, look, forward, 1.0f, glm::fvec4(0.9f, 0.9f, 0.9f, 1.0f));
+        }
+    }
+
+    glEnable(GL_DEPTH_TEST);
+
+    glViewport(0, 0, globals::width, globals::height);
+    glClearColor(0.000f, 0.000f, 0.000f, 1.000f);
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
+    glClear(GL_COLOR_BUFFER_BIT);
+
+    glBindFramebuffer(GL_READ_FRAMEBUFFER, globals::world_fbo);
+    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+    glBlitFramebuffer(0, 0, globals::width, globals::height, 0, 0, globals::width, globals::height, GL_COLOR_BUFFER_BIT, GL_NEAREST);
+}
+
+void client_game::layout(void)
+{
+    if(!session::is_ingame()) {
+        gui::background::layout();
+    }
+
+    if(!globals::gui_screen || (globals::gui_screen == GUI_CHAT)) {
+        if(toggles::get(TOGGLE_METRICS_UI) && !client_game::hide_hud) {
+            // This contains Minecraft-esque debug information
+            // about the hardware, world state and other
+            // things that might be uesful
+            gui::metrics::layout();
+        }
+    }
+
+    if(session::is_ingame()) {
+        gui::client_chat::layout();
+        gui::scoreboard::layout();
+
+        if(!globals::gui_screen && !client_game::hide_hud) {
+            gui::hotbar::layout();
+            gui::status_lines::layout();
+            gui::crosshair::layout();
+        }
+    }
+
+    if(globals::gui_screen) {
+        if(session::is_ingame() && (globals::gui_screen != GUI_CHAT)) {
+            const float width_f = static_cast<float>(globals::width);
+            const float height_f = static_cast<float>(globals::height);
+            const ImU32 darken = ImGui::GetColorU32(ImVec4(0.00f, 0.00f, 0.00f, 0.75f));
+            ImGui::GetBackgroundDrawList()->AddRectFilled(ImVec2(), ImVec2(width_f, height_f), darken);
+        }
+
+        switch(globals::gui_screen) {
+            case GUI_MAIN_MENU:
+                gui::main_menu::layout();
+                break;
+            case GUI_PLAY_MENU:
+                gui::play_menu::layout();
+                break;
+            case GUI_SETTINGS:
+                settings::layout();
+                break;
+            case GUI_PROGRESS_BAR:
+                gui::progress_bar::layout();
+                break;
+            case GUI_MESSAGE_BOX:
+                gui::message_box::layout();
+                break;
+            case GUI_DIRECT_CONNECTION:
+                gui::direct_connection::layout();
+                break;
+        }
+    }
+}
diff --git a/src/game/client/game.hh b/src/game/client/game.hh
new file mode 100644
index 0000000..395acc9
--- /dev/null
+++ b/src/game/client/game.hh
@@ -0,0 +1,35 @@
+#pragma once
+
+namespace config
+{
+class Boolean;
+class String;
+class Unsigned;
+} // namespace config
+
+namespace client_game
+{
+extern config::Boolean streamer_mode;
+extern config::Boolean vertical_sync;
+extern config::Boolean world_curvature;
+extern config::Unsigned fog_mode;
+extern config::String username;
+} // namespace client_game
+
+namespace client_game
+{
+extern bool hide_hud;
+} // namespace client_game
+
+namespace client_game
+{
+void init(void);
+void init_late(void);
+void shutdown(void);
+void fixed_update(void);
+void fixed_update_late(void);
+void update(void);
+void update_late(void);
+void render(void);
+void layout(void);
+} // namespace client_game
diff --git a/src/game/client/globals.cc b/src/game/client/globals.cc
new file mode 100644
index 0000000..1932675
--- /dev/null
+++ b/src/game/client/globals.cc
@@ -0,0 +1,47 @@
+#include "client/pch.hh"
+
+#include "client/globals.hh"
+
+#include "core/io/config_map.hh"
+
+#include "client/gui/gui_screen.hh"
+
+io::ConfigMap globals::client_config;
+
+GLFWwindow* globals::window;
+
+float globals::window_frametime;
+float globals::window_frametime_avg;
+std::uint64_t globals::window_frametime_us;
+std::uint64_t globals::window_framecount;
+
+std::uint64_t globals::fixed_accumulator;
+
+int globals::width;
+int globals::height;
+float globals::aspect;
+
+GLuint globals::world_fbo;
+GLuint globals::world_fbo_color;
+GLuint globals::world_fbo_depth;
+
+std::size_t globals::num_drawcalls;
+std::size_t globals::num_triangles;
+
+ENetHost* globals::client_host;
+
+world::Dimension* globals::dimension = nullptr;
+entt::entity globals::player;
+
+ImFont* globals::font_unscii16;
+ImFont* globals::font_unscii8;
+
+config::KeyBind* globals::gui_keybind_ptr = nullptr;
+config::GamepadAxis* globals::gui_gamepad_axis_ptr = nullptr;
+config::GamepadButton* globals::gui_gamepad_button_ptr = nullptr;
+
+unsigned int globals::gui_scale = 0U;
+unsigned int globals::gui_screen = GUI_SCREEN_NONE;
+
+ALCdevice* globals::sound_dev;
+ALCcontext* globals::sound_ctx;
diff --git a/src/game/client/globals.hh b/src/game/client/globals.hh
new file mode 100644
index 0000000..ba57a9e
--- /dev/null
+++ b/src/game/client/globals.hh
@@ -0,0 +1,71 @@
+#pragma once
+
+#include "shared/globals.hh"
+
+namespace config
+{
+class KeyBind;
+class GamepadAxis;
+class GamepadButton;
+} // namespace config
+
+namespace io
+{
+class ConfigMap;
+} // namespace io
+
+struct GLFWwindow;
+struct ImFont;
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace globals
+{
+extern io::ConfigMap client_config;
+
+extern GLFWwindow* window;
+
+// Some gamesystems that aren't really
+// gameplay-oriented might still use client
+// framerate to interpolate discrete things
+// so it's still a good idea to keep these available
+extern float window_frametime;
+extern float window_frametime_avg;
+extern std::uint64_t window_frametime_us;
+extern std::uint64_t window_framecount;
+
+// https://gafferongames.com/post/fix_your_timestep/
+extern std::uint64_t fixed_accumulator;
+
+extern int width;
+extern int height;
+extern float aspect;
+
+extern GLuint world_fbo;
+extern GLuint world_fbo_color;
+extern GLuint world_fbo_depth;
+
+extern std::size_t num_drawcalls;
+extern std::size_t num_triangles;
+
+extern ENetHost* client_host;
+
+extern world::Dimension* dimension;
+extern entt::entity player;
+
+extern ImFont* font_unscii16;
+extern ImFont* font_unscii8;
+
+extern config::KeyBind* gui_keybind_ptr;
+extern config::GamepadAxis* gui_gamepad_axis_ptr;
+extern config::GamepadButton* gui_gamepad_button_ptr;
+
+extern unsigned int gui_scale;
+extern unsigned int gui_screen;
+
+extern ALCdevice* sound_dev;
+extern ALCcontext* sound_ctx;
+} // namespace globals
diff --git a/src/game/client/gui/CMakeLists.txt b/src/game/client/gui/CMakeLists.txt
new file mode 100644
index 0000000..46d64a1
--- /dev/null
+++ b/src/game/client/gui/CMakeLists.txt
@@ -0,0 +1,38 @@
+target_sources(vclient PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/background.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/background.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/bother.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/bother.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/chat.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/chat.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/crosshair.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/crosshair.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/direct_connection.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/direct_connection.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/gui_screen.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/hotbar.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/hotbar.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/imdraw_ext.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/imdraw_ext.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/language.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/language.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/main_menu.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/main_menu.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/message_box.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/message_box.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/metrics.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/metrics.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/play_menu.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/play_menu.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/progress_bar.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/progress_bar.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/scoreboard.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/scoreboard.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/settings.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/settings.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/splash.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/splash.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/status_lines.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/status_lines.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/window_title.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/window_title.hh")
diff --git a/src/game/client/gui/background.cc b/src/game/client/gui/background.cc
new file mode 100644
index 0000000..50fef01
--- /dev/null
+++ b/src/game/client/gui/background.cc
@@ -0,0 +1,39 @@
+#include "client/pch.hh"
+
+#include "client/gui/background.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "core/resource/resource.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "client/globals.hh"
+
+static resource_ptr<TextureGUI> texture;
+
+void gui::background::init(void)
+{
+    texture = resource::load<TextureGUI>("textures/gui/background.png", TEXTURE_GUI_LOAD_VFLIP);
+
+    if(texture == nullptr) {
+        spdlog::critical("background: texture load failed");
+        std::terminate();
+    }
+}
+
+void gui::background::shutdown(void)
+{
+    texture = nullptr;
+}
+
+void gui::background::layout(void)
+{
+    auto viewport = ImGui::GetMainViewport();
+    auto draw_list = ImGui::GetBackgroundDrawList();
+
+    auto scaled_width = 0.75f * static_cast<float>(globals::width / globals::gui_scale);
+    auto scaled_height = 0.75f * static_cast<float>(globals::height / globals::gui_scale);
+    auto scale_uv = ImVec2(scaled_width / static_cast<float>(texture->size.x), scaled_height / static_cast<float>(texture->size.y));
+    draw_list->AddImage(texture->handle, ImVec2(0.0f, 0.0f), viewport->Size, ImVec2(0.0f, 0.0f), scale_uv);
+}
diff --git a/src/game/client/gui/background.hh b/src/game/client/gui/background.hh
new file mode 100644
index 0000000..5c72a3f
--- /dev/null
+++ b/src/game/client/gui/background.hh
@@ -0,0 +1,8 @@
+#pragma once
+
+namespace gui::background
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+} // namespace gui::background
diff --git a/src/game/client/gui/bother.cc b/src/game/client/gui/bother.cc
new file mode 100644
index 0000000..a045284
--- /dev/null
+++ b/src/game/client/gui/bother.cc
@@ -0,0 +1,167 @@
+#include "client/pch.hh"
+
+#include "client/gui/bother.hh"
+
+#include "core/version.hh"
+
+#include "shared/protocol.hh"
+
+#include "client/globals.hh"
+
+// Maximum amount of peers used for bothering
+constexpr static std::size_t BOTHER_PEERS = 4;
+
+struct BotherQueueItem final {
+    unsigned int identity;
+    std::string hostname;
+    std::uint16_t port;
+};
+
+static ENetHost* bother_host;
+static entt::dispatcher bother_dispatcher;
+static std::unordered_set<unsigned int> bother_set;
+static std::deque<BotherQueueItem> bother_queue;
+
+static void on_status_response_packet(const protocol::StatusResponse& packet)
+{
+    auto identity = static_cast<unsigned int>(reinterpret_cast<std::uintptr_t>(packet.peer->data));
+
+    bother_set.erase(identity);
+
+    gui::BotherResponseEvent event;
+    event.identity = identity;
+    event.is_server_unreachable = false;
+    event.num_players = packet.num_players;
+    event.max_players = packet.max_players;
+    event.motd = packet.motd;
+    event.game_version_major = packet.game_version_major;
+    event.game_version_minor = packet.game_version_minor;
+    event.game_version_patch = packet.game_version_patch;
+    globals::dispatcher.trigger(event);
+
+    enet_peer_disconnect(packet.peer, protocol::CHANNEL);
+}
+
+void gui::bother::init(void)
+{
+    bother_host = enet_host_create(nullptr, BOTHER_PEERS, 1, 0, 0);
+    bother_dispatcher.clear();
+    bother_set.clear();
+
+    bother_dispatcher.sink<protocol::StatusResponse>().connect<&on_status_response_packet>();
+}
+
+void gui::bother::shutdown(void)
+{
+    enet_host_destroy(bother_host);
+    bother_dispatcher.clear();
+    bother_set.clear();
+}
+
+void gui::bother::update_late(void)
+{
+    unsigned int free_peers = 0U;
+
+    // Figure out how much times we can call
+    // enet_host_connect and reallistically succeed
+    for(unsigned int i = 0U; i < bother_host->peerCount; ++i) {
+        if(bother_host->peers[i].state != ENET_PEER_STATE_DISCONNECTED) {
+            continue;
+        }
+
+        free_peers += 1U;
+    }
+
+    for(unsigned int i = 0U; (i < free_peers) && bother_queue.size(); ++i) {
+        const auto& item = bother_queue.front();
+
+        ENetAddress address;
+        enet_address_set_host(&address, item.hostname.c_str());
+        address.port = enet_uint16(item.port);
+
+        if(auto peer = enet_host_connect(bother_host, &address, 1, 0)) {
+            peer->data = reinterpret_cast<void*>(static_cast<std::uintptr_t>(item.identity));
+            bother_set.insert(item.identity);
+            enet_host_flush(bother_host);
+        }
+
+        bother_queue.pop_front();
+    }
+
+    ENetEvent enet_event;
+
+    if(0 < enet_host_service(bother_host, &enet_event, 0)) {
+        if(enet_event.type == ENET_EVENT_TYPE_CONNECT) {
+            protocol::StatusRequest packet;
+            packet.game_version_major = version::major;
+            protocol::send(enet_event.peer, protocol::encode(packet));
+            return;
+        }
+
+        if(enet_event.type == ENET_EVENT_TYPE_RECEIVE) {
+            protocol::decode(bother_dispatcher, enet_event.packet, enet_event.peer);
+            enet_packet_destroy(enet_event.packet);
+            return;
+        }
+
+        if(enet_event.type == ENET_EVENT_TYPE_DISCONNECT) {
+            auto identity = static_cast<unsigned int>(reinterpret_cast<std::uintptr_t>(enet_event.peer->data));
+
+            if(bother_set.count(identity)) {
+                BotherResponseEvent event;
+                event.identity = identity;
+                event.is_server_unreachable = true;
+                globals::dispatcher.trigger(event);
+            }
+
+            bother_set.erase(identity);
+
+            return;
+        }
+    }
+}
+
+void gui::bother::ping(unsigned int identity, std::string_view host, std::uint16_t port)
+{
+    if(bother_set.count(identity)) {
+        // Already in the process
+        return;
+    }
+
+    for(const auto& item : bother_queue) {
+        if(item.identity == identity) {
+            // Already in the queue
+            return;
+        }
+    }
+
+    BotherQueueItem item;
+    item.identity = identity;
+    item.hostname = host;
+    item.port = port;
+
+    bother_queue.push_back(item);
+}
+
+void gui::bother::cancel(unsigned int identity)
+{
+    bother_set.erase(identity);
+
+    auto item = bother_queue.cbegin();
+
+    while(item != bother_queue.cend()) {
+        if(item->identity == identity) {
+            item = bother_queue.erase(item);
+            continue;
+        }
+
+        item = std::next(item);
+    }
+
+    for(unsigned int i = 0U; i < bother_host->peerCount; ++i) {
+        if(bother_host->peers[i].data == reinterpret_cast<void*>(static_cast<std::uintptr_t>(identity))) {
+            enet_peer_reset(&bother_host->peers[i]);
+            break;
+        }
+    }
+}
diff --git a/src/game/client/gui/bother.hh b/src/game/client/gui/bother.hh
new file mode 100644
index 0000000..b0355ca
--- /dev/null
+++ b/src/game/client/gui/bother.hh
@@ -0,0 +1,24 @@
+#pragma once
+
+namespace gui
+{
+struct BotherResponseEvent final {
+    unsigned int identity;
+    bool is_server_unreachable;
+    std::uint16_t num_players;
+    std::uint16_t max_players;
+    std::uint32_t game_version_major;
+    std::uint32_t game_version_minor;
+    std::uint32_t game_version_patch;
+    std::string motd;
+};
+} // namespace gui
+
+namespace gui::bother
+{
+void init(void);
+void shutdown(void);
+void update_late(void);
+void ping(unsigned int identity, std::string_view host, std::uint16_t port);
+void cancel(unsigned int identity);
+} // namespace gui::bother
diff --git a/src/game/client/gui/chat.cc b/src/game/client/gui/chat.cc
new file mode 100644
index 0000000..70a1668
--- /dev/null
+++ b/src/game/client/gui/chat.cc
@@ -0,0 +1,273 @@
+#include "client/pch.hh"
+
+#include "client/gui/chat.hh"
+
+#include "core/config/number.hh"
+#include "core/config/string.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/resource/resource.hh"
+
+#include "core/utils/string.hh"
+
+#include "shared/protocol.hh"
+
+#include "client/config/keybind.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/imdraw_ext.hh"
+#include "client/gui/language.hh"
+#include "client/gui/settings.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/resource/sound_effect.hh"
+
+#include "client/sound/sound.hh"
+
+#include "client/game.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+constexpr static unsigned int MAX_HISTORY_SIZE = 128U;
+
+struct GuiChatMessage final {
+    std::uint64_t spawn;
+    std::string text;
+    ImVec4 color;
+};
+
+static config::KeyBind key_chat(GLFW_KEY_ENTER);
+static config::Unsigned history_size(32U, 0U, MAX_HISTORY_SIZE);
+
+static std::deque<GuiChatMessage> history;
+static std::string chat_input;
+static bool needs_focus;
+
+static resource_ptr<SoundEffect> sfx_chat_message;
+
+static void append_text_message(const std::string& sender, const std::string& text)
+{
+    GuiChatMessage message;
+    message.spawn = globals::curtime;
+    message.text = std::format("<{}> {}", sender, text);
+    message.color = ImGui::GetStyleColorVec4(ImGuiCol_Text);
+    history.push_back(message);
+
+    if(sfx_chat_message && session::is_ingame()) {
+        sound::play_ui(sfx_chat_message, false, 1.0f);
+    }
+}
+
+static void append_player_join(const std::string& sender)
+{
+    GuiChatMessage message;
+    message.spawn = globals::curtime;
+    message.text = std::format("{} {}", sender, gui::language::resolve("chat.client_join"));
+    message.color = ImGui::GetStyleColorVec4(ImGuiCol_DragDropTarget);
+    history.push_back(message);
+
+    if(sfx_chat_message && session::is_ingame()) {
+        sound::play_ui(sfx_chat_message, false, 1.0f);
+    }
+}
+
+static void append_player_leave(const std::string& sender, const std::string& reason)
+{
+    GuiChatMessage message;
+    message.spawn = globals::curtime;
+    message.text = std::format("{} {} ({})", sender, gui::language::resolve("chat.client_left"), gui::language::resolve(reason.c_str()));
+    message.color = ImGui::GetStyleColorVec4(ImGuiCol_DragDropTarget);
+    history.push_back(message);
+
+    if(sfx_chat_message && session::is_ingame()) {
+        sound::play_ui(sfx_chat_message, false, 1.0f);
+    }
+}
+
+static void on_chat_message_packet(const protocol::ChatMessage& packet)
+{
+    if(packet.type == protocol::ChatMessage::TEXT_MESSAGE) {
+        append_text_message(packet.sender, packet.message);
+        return;
+    }
+
+    if(packet.type == protocol::ChatMessage::PLAYER_JOIN) {
+        append_player_join(packet.sender);
+        return;
+    }
+
+    if(packet.type == protocol::ChatMessage::PLAYER_LEAVE) {
+        append_player_leave(packet.sender, packet.message);
+        return;
+    }
+}
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if(event.action == GLFW_PRESS) {
+        if((event.key == GLFW_KEY_ENTER) && (globals::gui_screen == GUI_CHAT)) {
+            if(!utils::is_whitespace(chat_input)) {
+                protocol::ChatMessage packet;
+                packet.type = protocol::ChatMessage::TEXT_MESSAGE;
+                packet.sender = client_game::username.get();
+                packet.message = chat_input;
+
+                protocol::send(session::peer, protocol::encode(packet));
+            }
+
+            globals::gui_screen = GUI_SCREEN_NONE;
+
+            chat_input.clear();
+
+            return;
+        }
+
+        if((event.key == GLFW_KEY_ESCAPE) && (globals::gui_screen == GUI_CHAT)) {
+            globals::gui_screen = GUI_SCREEN_NONE;
+            return;
+        }
+
+        if(key_chat.equals(event.key) && !globals::gui_screen) {
+            globals::gui_screen = GUI_CHAT;
+            needs_focus = true;
+            return;
+        }
+    }
+}
+
+void gui::client_chat::init(void)
+{
+    globals::client_config.add_value("chat.key", key_chat);
+    globals::client_config.add_value("chat.history_size", history_size);
+
+    settings::add_keybind(2, key_chat, settings_location::KEYBOARD_MISC, "key.chat");
+    settings::add_slider(1, history_size, settings_location::VIDEO_GUI, "chat.history_size", false);
+
+    globals::dispatcher.sink<protocol::ChatMessage>().connect<&on_chat_message_packet>();
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+
+    sfx_chat_message = resource::load<SoundEffect>("sounds/ui/chat_message.wav");
+}
+
+void gui::client_chat::init_late(void)
+{
+}
+
+void gui::client_chat::shutdown(void)
+{
+    sfx_chat_message = nullptr;
+}
+
+void gui::client_chat::update(void)
+{
+    while(history.size() > history_size.get_value()) {
+        history.pop_front();
+    }
+}
+
+void gui::client_chat::layout(void)
+{
+    auto viewport = ImGui::GetMainViewport();
+    auto window_start = ImVec2(0.0f, 0.0f);
+    auto window_size = ImVec2(0.75f * viewport->Size.x, viewport->Size.y);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    ImGui::PushFont(globals::font_unscii16, 8.0f);
+
+    if(!ImGui::Begin("###chat", nullptr, WINDOW_FLAGS)) {
+        ImGui::End();
+        return;
+    }
+
+    auto& padding = ImGui::GetStyle().FramePadding;
+    auto& spacing = ImGui::GetStyle().ItemSpacing;
+    auto font = ImGui::GetFont();
+
+    auto draw_list = ImGui::GetWindowDrawList();
+
+    // The text input widget occupies the bottom part
+    // of the chat window, we need to reserve some space for it
+    auto ypos = window_size.y - 2.5f * ImGui::GetFontSize() - 2.0f * padding.y - 2.0f * spacing.y;
+
+    if(globals::gui_screen == GUI_CHAT) {
+        if(needs_focus) {
+            ImGui::SetKeyboardFocusHere();
+            needs_focus = false;
+        }
+
+        ImGui::SetNextItemWidth(window_size.x + 32.0f * padding.x);
+        ImGui::SetCursorScreenPos(ImVec2(padding.x, ypos));
+        ImGui::InputText("###chat.input", &chat_input);
+    }
+
+    if(!client_game::hide_hud && ((globals::gui_screen == GUI_SCREEN_NONE) || (globals::gui_screen == GUI_CHAT))) {
+        for(auto it = history.crbegin(); it < history.crend(); ++it) {
+            auto text_size = ImGui::CalcTextSize(it->text.c_str(), it->text.c_str() + it->text.size(), false, window_size.x);
+            auto rect_size = ImVec2(window_size.x, text_size.y + 2.0f * padding.y);
+
+            auto rect_pos = ImVec2(padding.x, ypos - text_size.y - 2.0f * padding.y);
+            auto rect_end = ImVec2(rect_pos.x + rect_size.x, rect_pos.y + rect_size.y);
+            auto text_pos = ImVec2(rect_pos.x + padding.x, rect_pos.y + padding.y);
+
+            auto fadeout_seconds = 10.0f;
+            auto fadeout = std::exp(-1.0f * std::pow(1.0e-6f * static_cast<float>(globals::curtime - it->spawn) / fadeout_seconds, 10.0f));
+
+            float rect_alpha;
+            float text_alpha;
+
+            if(globals::gui_screen == GUI_CHAT) {
+                rect_alpha = 0.75f;
+                text_alpha = 1.00f;
+            }
+            else {
+                rect_alpha = 0.50f * fadeout;
+                text_alpha = 1.00f * fadeout;
+            }
+
+            auto rect_col = ImGui::GetColorU32(ImGuiCol_FrameBg, rect_alpha);
+            auto text_col = ImGui::GetColorU32(ImVec4(it->color.x, it->color.y, it->color.z, it->color.w * text_alpha));
+            auto shadow_col = ImGui::GetColorU32(ImVec4(0.0f, 0.0f, 0.0f, text_alpha));
+
+            draw_list->AddRectFilled(rect_pos, rect_end, rect_col);
+
+            imdraw_ext::text_shadow_w(it->text, text_pos, text_col, shadow_col, font, draw_list, 8.0f, window_size.x);
+
+            ypos -= rect_size.y;
+        }
+    }
+
+    ImGui::End();
+    ImGui::PopFont();
+}
+
+void gui::client_chat::clear(void)
+{
+    history.clear();
+}
+
+void gui::client_chat::refresh_timings(void)
+{
+    for(auto it = history.begin(); it < history.end(); ++it) {
+        // Reset the spawn time so the fadeout timer
+        // is reset; SpawnPlayer handler might call this
+        it->spawn = globals::curtime;
+    }
+}
+
+void gui::client_chat::print(const std::string& text)
+{
+    GuiChatMessage message = {};
+    message.spawn = globals::curtime;
+    message.text = text;
+    message.color = ImGui::GetStyleColorVec4(ImGuiCol_Text);
+    history.push_back(message);
+
+    if(sfx_chat_message && session::is_ingame()) {
+        sound::play_ui(sfx_chat_message, false, 1.0f);
+    }
+}
diff --git a/src/game/client/gui/chat.hh b/src/game/client/gui/chat.hh
new file mode 100644
index 0000000..6a3ea33
--- /dev/null
+++ b/src/game/client/gui/chat.hh
@@ -0,0 +1,17 @@
+#pragma once
+
+namespace gui::client_chat
+{
+void init(void);
+void init_late(void);
+void shutdown(void);
+void update(void);
+void layout(void);
+} // namespace gui::client_chat
+
+namespace gui::client_chat
+{
+void clear(void);
+void refresh_timings(void);
+void print(const std::string& string);
+} // namespace gui::client_chat
diff --git a/src/game/client/gui/crosshair.cc b/src/game/client/gui/crosshair.cc
new file mode 100644
index 0000000..649602f
--- /dev/null
+++ b/src/game/client/gui/crosshair.cc
@@ -0,0 +1,43 @@
+#include "client/pch.hh"
+
+#include "client/gui/crosshair.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "core/resource/resource.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "client/globals.hh"
+#include "client/session.hh"
+
+static resource_ptr<TextureGUI> texture;
+
+void gui::crosshair::init(void)
+{
+    texture = resource::load<TextureGUI>("textures/gui/hud_crosshair.png",
+        TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T | TEXTURE_GUI_LOAD_VFLIP);
+
+    if(texture == nullptr) {
+        spdlog::critical("crosshair: texture load failed");
+        std::terminate();
+    }
+}
+
+void gui::crosshair::shutdown(void)
+{
+    texture = nullptr;
+}
+
+void gui::crosshair::layout(void)
+{
+    auto viewport = ImGui::GetMainViewport();
+    auto draw_list = ImGui::GetForegroundDrawList();
+
+    auto scaled_width = glm::max<int>(texture->size.x, static_cast<int>(globals::gui_scale * texture->size.x / 2.0f));
+    auto scaled_height = glm::max<int>(texture->size.y, static_cast<int>(globals::gui_scale * texture->size.y / 2.0f));
+    auto start = ImVec2(static_cast<int>(0.5f * viewport->Size.x) - (scaled_width / 2.0f),
+        static_cast<float>(static_cast<int>(0.5f * viewport->Size.y) - (scaled_height / 2.0f)));
+    auto end = ImVec2(start.x + scaled_width, start.y + scaled_height);
+    draw_list->AddImage(texture->handle, start, end);
+}
diff --git a/src/game/client/gui/crosshair.hh b/src/game/client/gui/crosshair.hh
new file mode 100644
index 0000000..589727e
--- /dev/null
+++ b/src/game/client/gui/crosshair.hh
@@ -0,0 +1,8 @@
+#pragma once
+
+namespace gui::crosshair
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+} // namespace gui::crosshair
diff --git a/src/game/client/gui/direct_connection.cc b/src/game/client/gui/direct_connection.cc
new file mode 100644
index 0000000..39ea2b5
--- /dev/null
+++ b/src/game/client/gui/direct_connection.cc
@@ -0,0 +1,145 @@
+#include "client/pch.hh"
+
+#include "client/gui/direct_connection.hh"
+
+#include "core/config/boolean.hh"
+
+#include "core/utils/string.hh"
+
+#include "shared/protocol.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/language.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/game.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+
+static std::string str_title;
+static std::string str_connect;
+static std::string str_cancel;
+
+static std::string str_hostname;
+static std::string str_password;
+
+static std::string direct_hostname;
+static std::string direct_password;
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if((event.key == GLFW_KEY_ESCAPE) && (event.action == GLFW_PRESS)) {
+        if(globals::gui_screen == GUI_DIRECT_CONNECTION) {
+            globals::gui_screen = GUI_PLAY_MENU;
+            return;
+        }
+    }
+}
+
+static void on_language_set(const gui::LanguageSetEvent& event)
+{
+    str_title = gui::language::resolve("direct_connection.title");
+    str_connect = gui::language::resolve_gui("direct_connection.connect");
+    str_cancel = gui::language::resolve_gui("direct_connection.cancel");
+
+    str_hostname = gui::language::resolve("direct_connection.hostname");
+    str_password = gui::language::resolve("direct_connection.password");
+}
+
+static void connect_to_server(void)
+{
+    auto parts = utils::split(direct_hostname, ":");
+    std::string parsed_hostname;
+    std::uint16_t parsed_port;
+
+    if(!parts[0].empty()) {
+        parsed_hostname = parts[0];
+    }
+    else {
+        parsed_hostname = std::string("localhost");
+    }
+
+    if(parts.size() >= 2) {
+        parsed_port = glm::clamp<std::uint16_t>(static_cast<std::uint16_t>(strtoul(parts[1].c_str(), nullptr, 10)), 1024U, UINT16_MAX);
+    }
+    else {
+        parsed_port = protocol::PORT;
+    }
+
+    session::connect(parsed_hostname.c_str(), parsed_port, direct_password.c_str());
+}
+
+void gui::direct_connection::init(void)
+{
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+    globals::dispatcher.sink<LanguageSetEvent>().connect<&on_language_set>();
+}
+
+void gui::direct_connection::layout(void)
+{
+    auto viewport = ImGui::GetMainViewport();
+    auto window_start = ImVec2(0.25f * viewport->Size.x, 0.20f * viewport->Size.y);
+    auto window_size = ImVec2(0.50f * viewport->Size.x, 0.80f * viewport->Size.y);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###UIDirectConnect", nullptr, WINDOW_FLAGS)) {
+        const float title_width = ImGui::CalcTextSize(str_title.c_str()).x;
+        ImGui::SetCursorPosX(0.5f * (window_size.x - title_width));
+        ImGui::TextUnformatted(str_title.c_str());
+
+        ImGui::Dummy(ImVec2(0.0f, 16.0f * globals::gui_scale));
+
+        ImGuiInputTextFlags hostname_flags = ImGuiInputTextFlags_CharsNoBlank;
+
+        if(client_game::streamer_mode.get_value()) {
+            // Hide server hostname to avoid things like
+            // followers flooding the server that is streamed online
+            hostname_flags |= ImGuiInputTextFlags_Password;
+        }
+
+        auto avail_width = ImGui::GetContentRegionAvail().x;
+
+        ImGui::PushItemWidth(avail_width);
+
+        ImGui::InputText("###UIDirectConnect_hostname", &direct_hostname, hostname_flags);
+
+        if(ImGui::BeginItemTooltip()) {
+            ImGui::PushTextWrapPos(ImGui::GetFontSize() * 16.0f);
+            ImGui::TextUnformatted(str_hostname.c_str());
+            ImGui::PopTextWrapPos();
+            ImGui::EndTooltip();
+        }
+
+        ImGui::InputText("###UIDirectConnect_password", &direct_password, ImGuiInputTextFlags_Password);
+
+        if(ImGui::BeginItemTooltip()) {
+            ImGui::PushTextWrapPos(ImGui::GetFontSize() * 16.0f);
+            ImGui::TextUnformatted(str_password.c_str());
+            ImGui::PopTextWrapPos();
+            ImGui::EndTooltip();
+        }
+
+        ImGui::PopItemWidth();
+
+        ImGui::Dummy(ImVec2(0.0f, 4.0f * globals::gui_scale));
+
+        ImGui::BeginDisabled(utils::is_whitespace(direct_hostname));
+
+        if(ImGui::Button(str_connect.c_str(), ImVec2(avail_width, 0.0f))) {
+            connect_to_server();
+        }
+
+        ImGui::EndDisabled();
+
+        if(ImGui::Button(str_cancel.c_str(), ImVec2(avail_width, 0.0f))) {
+            globals::gui_screen = GUI_PLAY_MENU;
+        }
+    }
+
+    ImGui::End();
+}
diff --git a/src/game/client/gui/direct_connection.hh b/src/game/client/gui/direct_connection.hh
new file mode 100644
index 0000000..aa02d7c
--- /dev/null
+++ b/src/game/client/gui/direct_connection.hh
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace gui::direct_connection
+{
+void init(void);
+void layout(void);
+} // namespace gui::direct_connection
diff --git a/src/game/client/gui/gui_screen.hh b/src/game/client/gui/gui_screen.hh
new file mode 100644
index 0000000..2eae310
--- /dev/null
+++ b/src/game/client/gui/gui_screen.hh
@@ -0,0 +1,10 @@
+#pragma once
+
+constexpr static unsigned int GUI_SCREEN_NONE = 0x0000U;
+constexpr static unsigned int GUI_MAIN_MENU = 0x0001U;
+constexpr static unsigned int GUI_PLAY_MENU = 0x0002U;
+constexpr static unsigned int GUI_SETTINGS = 0x0003U;
+constexpr static unsigned int GUI_PROGRESS_BAR = 0x0004U;
+constexpr static unsigned int GUI_MESSAGE_BOX = 0x0005U;
+constexpr static unsigned int GUI_CHAT = 0x0006U;
+constexpr static unsigned int GUI_DIRECT_CONNECTION = 0x0007U;
diff --git a/src/game/client/gui/hotbar.cc b/src/game/client/gui/hotbar.cc
new file mode 100644
index 0000000..663f263
--- /dev/null
+++ b/src/game/client/gui/hotbar.cc
@@ -0,0 +1,182 @@
+#include "client/pch.hh"
+
+#include "client/gui/hotbar.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/resource/resource.hh"
+
+#include "shared/world/item_registry.hh"
+
+#include "client/config/keybind.hh"
+
+#include "client/gui/settings.hh"
+#include "client/gui/status_lines.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "client/globals.hh"
+
+constexpr static float ITEM_SIZE = 20.0f;
+constexpr static float ITEM_PADDING = 2.0f;
+constexpr static float SELECTOR_PADDING = 1.0f;
+constexpr static float HOTBAR_PADDING = 2.0f;
+
+unsigned int gui::hotbar::active_slot = 0U;
+std::array<const world::Item*, HOTBAR_SIZE> gui::hotbar::slots = {};
+
+static config::KeyBind hotbar_keys[HOTBAR_SIZE];
+
+static resource_ptr<TextureGUI> hotbar_background;
+static resource_ptr<TextureGUI> hotbar_selector;
+
+static ImU32 get_color_alpha(ImGuiCol style_color, float alpha)
+{
+    const auto& color = ImGui::GetStyleColorVec4(style_color);
+    return ImGui::GetColorU32(ImVec4(color.x, color.y, color.z, alpha));
+}
+
+static void update_hotbar_item(void)
+{
+    auto current_item = gui::hotbar::slots[gui::hotbar::active_slot];
+
+    if(current_item == nullptr) {
+        gui::status_lines::unset(gui::STATUS_HOTBAR);
+    }
+    else {
+        gui::status_lines::set(gui::STATUS_HOTBAR, current_item->get_name(), ImVec4(1.0f, 1.0f, 1.0f, 1.0f), 5.0f);
+    }
+}
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if((event.action == GLFW_PRESS) && !globals::gui_screen) {
+        for(unsigned int i = 0U; i < HOTBAR_SIZE; ++i) {
+            if(hotbar_keys[i].equals(event.key)) {
+                gui::hotbar::active_slot = i;
+                update_hotbar_item();
+                break;
+            }
+        }
+    }
+}
+
+static void on_glfw_scroll(const io::GlfwScrollEvent& event)
+{
+    if(!globals::gui_screen) {
+        if(event.dy < 0.0) {
+            gui::hotbar::next_slot();
+            return;
+        }
+
+        if(event.dy > 0.0) {
+            gui::hotbar::prev_slot();
+            return;
+        }
+    }
+}
+
+void gui::hotbar::init(void)
+{
+    hotbar_keys[0].set_key(GLFW_KEY_1);
+    hotbar_keys[1].set_key(GLFW_KEY_2);
+    hotbar_keys[2].set_key(GLFW_KEY_3);
+    hotbar_keys[3].set_key(GLFW_KEY_4);
+    hotbar_keys[4].set_key(GLFW_KEY_5);
+    hotbar_keys[5].set_key(GLFW_KEY_6);
+    hotbar_keys[6].set_key(GLFW_KEY_7);
+    hotbar_keys[7].set_key(GLFW_KEY_8);
+    hotbar_keys[8].set_key(GLFW_KEY_9);
+
+    globals::client_config.add_value("hotbar.key.0", hotbar_keys[0]);
+    globals::client_config.add_value("hotbar.key.1", hotbar_keys[1]);
+    globals::client_config.add_value("hotbar.key.3", hotbar_keys[2]);
+    globals::client_config.add_value("hotbar.key.4", hotbar_keys[3]);
+    globals::client_config.add_value("hotbar.key.5", hotbar_keys[4]);
+    globals::client_config.add_value("hotbar.key.6", hotbar_keys[5]);
+    globals::client_config.add_value("hotbar.key.7", hotbar_keys[6]);
+    globals::client_config.add_value("hotbar.key.8", hotbar_keys[7]);
+    globals::client_config.add_value("hotbar.key.9", hotbar_keys[8]);
+
+    settings::add_keybind(10, hotbar_keys[0], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.0");
+    settings::add_keybind(11, hotbar_keys[1], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.1");
+    settings::add_keybind(12, hotbar_keys[2], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.2");
+    settings::add_keybind(13, hotbar_keys[3], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.3");
+    settings::add_keybind(14, hotbar_keys[4], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.4");
+    settings::add_keybind(15, hotbar_keys[5], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.5");
+    settings::add_keybind(16, hotbar_keys[6], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.6");
+    settings::add_keybind(17, hotbar_keys[7], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.7");
+    settings::add_keybind(18, hotbar_keys[8], settings_location::KEYBOARD_GAMEPLAY, "hotbar.slot.8");
+
+    hotbar_background = resource::load<TextureGUI>("textures/gui/hud_hotbar.png", TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T);
+    hotbar_selector = resource::load<TextureGUI>("textures/gui/hud_selector.png", TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T);
+
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+    globals::dispatcher.sink<io::GlfwScrollEvent>().connect<&on_glfw_scroll>();
+}
+
+void gui::hotbar::shutdown(void)
+{
+    hotbar_background = nullptr;
+    hotbar_selector = nullptr;
+}
+
+void gui::hotbar::layout(void)
+{
+    auto& style = ImGui::GetStyle();
+
+    auto item_size = ITEM_SIZE * globals::gui_scale;
+    auto hotbar_width = HOTBAR_SIZE * item_size;
+    auto hotbar_padding = HOTBAR_PADDING * globals::gui_scale;
+
+    auto viewport = ImGui::GetMainViewport();
+    auto draw_list = ImGui::GetForegroundDrawList();
+
+    // Draw the hotbar background image
+    auto background_start = ImVec2(0.5f * viewport->Size.x - 0.5f * hotbar_width, viewport->Size.y - item_size - hotbar_padding);
+    auto background_end = ImVec2(background_start.x + hotbar_width, background_start.y + item_size);
+    draw_list->AddImage(hotbar_background->handle, background_start, background_end);
+
+    // Draw the hotbar selector image
+    auto selector_padding_a = SELECTOR_PADDING * globals::gui_scale;
+    auto selector_padding_b = SELECTOR_PADDING * globals::gui_scale * 2.0f;
+    auto selector_start = ImVec2(background_start.x + gui::hotbar::active_slot * item_size - selector_padding_a,
+        background_start.y - selector_padding_a);
+    auto selector_end = ImVec2(selector_start.x + item_size + selector_padding_b, selector_start.y + item_size + selector_padding_b);
+    draw_list->AddImage(hotbar_selector->handle, selector_start, selector_end);
+
+    // Figure out item texture padding values
+    auto item_padding_a = ITEM_PADDING * globals::gui_scale;
+    auto item_padding_b = ITEM_PADDING * globals::gui_scale * 2.0f;
+
+    // Draw individual item textures in the hotbar
+    for(std::size_t i = 0; i < HOTBAR_SIZE; ++i) {
+        auto item = gui::hotbar::slots[i];
+
+        if((item == nullptr) || (item->get_cached_texture() == nullptr)) {
+            // There's either no item in the slot
+            // or the item doesn't have a texture
+            continue;
+        }
+
+        const auto item_start = ImVec2(background_start.x + i * item_size + item_padding_a, background_start.y + item_padding_a);
+        const auto item_end = ImVec2(item_start.x + item_size - item_padding_b, item_start.y + item_size - item_padding_b);
+        draw_list->AddImage(item->get_cached_texture()->handle, item_start, item_end);
+    }
+}
+
+void gui::hotbar::next_slot(void)
+{
+    gui::hotbar::active_slot += 1U;
+    gui::hotbar::active_slot %= HOTBAR_SIZE;
+    update_hotbar_item();
+}
+
+void gui::hotbar::prev_slot(void)
+{
+    gui::hotbar::active_slot += HOTBAR_SIZE - 1U;
+    gui::hotbar::active_slot %= HOTBAR_SIZE;
+    update_hotbar_item();
+}
diff --git a/src/game/client/gui/hotbar.hh b/src/game/client/gui/hotbar.hh
new file mode 100644
index 0000000..c529230
--- /dev/null
+++ b/src/game/client/gui/hotbar.hh
@@ -0,0 +1,30 @@
+#pragma once
+
+// TODO: design an inventory system and an item
+// registry and integrate the hotbar into that system
+
+namespace world
+{
+class Item;
+} // namespace world
+
+constexpr static unsigned int HOTBAR_SIZE = 9U;
+
+namespace gui::hotbar
+{
+extern unsigned int active_slot;
+extern std::array<const world::Item*, HOTBAR_SIZE> slots;
+} // namespace gui::hotbar
+
+namespace gui::hotbar
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+} // namespace gui::hotbar
+
+namespace gui::hotbar
+{
+void next_slot(void);
+void prev_slot(void);
+} // namespace gui::hotbar
diff --git a/src/game/client/gui/imdraw_ext.cc b/src/game/client/gui/imdraw_ext.cc
new file mode 100644
index 0000000..4b44d5f
--- /dev/null
+++ b/src/game/client/gui/imdraw_ext.cc
@@ -0,0 +1,34 @@
+#include "client/pch.hh"
+
+#include "client/gui/imdraw_ext.hh"
+
+#include "client/globals.hh"
+
+void gui::imdraw_ext::text_shadow(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font,
+    ImDrawList* draw_list)
+{
+    imdraw_ext::text_shadow(text, position, text_color, shadow_color, font, draw_list, font->LegacySize);
+}
+
+void gui::imdraw_ext::text_shadow(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font,
+    ImDrawList* draw_list, float font_size)
+{
+    const auto shadow_position = ImVec2(position.x + 0.5f * globals::gui_scale, position.y + 0.5f * globals::gui_scale);
+    draw_list->AddText(font, globals::gui_scale * font_size, shadow_position, shadow_color, text.c_str(), text.c_str() + text.size());
+    draw_list->AddText(font, globals::gui_scale * font_size, position, text_color, text.c_str(), text.c_str() + text.size());
+}
+
+void gui::imdraw_ext::text_shadow_w(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font,
+    ImDrawList* draw_list, float wrap_width)
+{
+    imdraw_ext::text_shadow_w(text, position, text_color, shadow_color, font, draw_list, font->LegacySize, wrap_width);
+}
+
+void gui::imdraw_ext::text_shadow_w(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font,
+    ImDrawList* draw_list, float font_size, float wrap_width)
+{
+    const auto shadow_position = ImVec2(position.x + 0.5f * globals::gui_scale, position.y + 0.5f * globals::gui_scale);
+    draw_list->AddText(font, globals::gui_scale * font_size, shadow_position, shadow_color, text.c_str(), text.c_str() + text.size(),
+        wrap_width);
+    draw_list->AddText(font, globals::gui_scale * font_size, position, text_color, text.c_str(), text.c_str() + text.size(), wrap_width);
+}
diff --git a/src/game/client/gui/imdraw_ext.hh b/src/game/client/gui/imdraw_ext.hh
new file mode 100644
index 0000000..a7e1503
--- /dev/null
+++ b/src/game/client/gui/imdraw_ext.hh
@@ -0,0 +1,17 @@
+#pragma once
+
+namespace gui::imdraw_ext
+{
+void text_shadow(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font,
+    ImDrawList* draw_list);
+void text_shadow(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font, ImDrawList* draw_list,
+    float font_size);
+} // namespace gui::imdraw_ext
+
+namespace gui::imdraw_ext
+{
+void text_shadow_w(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font,
+    ImDrawList* draw_list, float wrap_width);
+void text_shadow_w(const std::string& text, const ImVec2& position, ImU32 text_color, ImU32 shadow_color, ImFont* font,
+    ImDrawList* draw_list, float font_size, float wrap_width);
+} // namespace gui::imdraw_ext
diff --git a/src/game/client/gui/language.cc b/src/game/client/gui/language.cc
new file mode 100644
index 0000000..0109ae6
--- /dev/null
+++ b/src/game/client/gui/language.cc
@@ -0,0 +1,202 @@
+#include "client/pch.hh"
+
+#include "client/gui/language.hh"
+
+#include "core/config/string.hh"
+
+#include "core/io/config_map.hh"
+#include "core/io/physfs.hh"
+
+#include "client/gui/settings.hh"
+
+#include "client/globals.hh"
+
+constexpr static std::string_view DEFAULT_LANGUAGE = "en_US";
+
+// Available languages are kept in a special manifest file which
+// is essentially a key-value map of semi-IETF-compliant language tags
+// and the language's endonym; after reading the manifest, the translation
+// system knows what language it can load and will act accordingly
+constexpr static std::string_view MANIFEST_PATH = "lang/manifest.json";
+
+static gui::LanguageManifest manifest;
+static gui::LanguageIterator current_language;
+static std::unordered_map<std::string, std::string> language_map;
+static std::unordered_map<std::string, gui::LanguageIterator> ietf_map;
+static config::String config_language(DEFAULT_LANGUAGE);
+
+static void send_language_event(gui::LanguageIterator new_language)
+{
+    gui::LanguageSetEvent event;
+    event.new_language = new_language;
+    globals::dispatcher.trigger(event);
+}
+
+void gui::language::init(void)
+{
+    globals::client_config.add_value("language", config_language);
+
+    settings::add_language_select(0, settings_location::GENERAL, "language");
+
+    auto file = PHYSFS_openRead(std::string(MANIFEST_PATH).c_str());
+
+    if(file == nullptr) {
+        spdlog::critical("language: {}: {}", MANIFEST_PATH, io::physfs_error());
+        std::terminate();
+    }
+
+    auto source = std::string(PHYSFS_fileLength(file), char(0x00));
+    PHYSFS_readBytes(file, source.data(), source.size());
+    PHYSFS_close(file);
+
+    auto jsonv = json_parse_string(source.c_str());
+    const auto json = json_value_get_object(jsonv);
+    const auto count = json_object_get_count(json);
+
+    if((jsonv == nullptr) || (json == nullptr) || (count == 0)) {
+        spdlog::critical("language: {}: parse error", MANIFEST_PATH);
+        json_value_free(jsonv);
+        std::terminate();
+    }
+
+    for(std::size_t i = 0; i < count; ++i) {
+        const auto ietf = json_object_get_name(json, i);
+        const auto value = json_object_get_value_at(json, i);
+        const auto endonym = json_value_get_string(value);
+
+        if(ietf && endonym) {
+            LanguageInfo info;
+            info.ietf = std::string(ietf);
+            info.endonym = std::string(endonym);
+            info.display = std::format("{} ({})", endonym, ietf);
+            manifest.push_back(info);
+        }
+    }
+
+    for(auto it = manifest.cbegin(); it != manifest.cend(); ++it) {
+        ietf_map.emplace(it->ietf, it);
+    }
+
+    json_value_free(jsonv);
+
+    // This is temporary! This value will
+    // be overriden in init_late after the
+    // config system updates config_language
+    current_language = manifest.cend();
+}
+
+void gui::language::init_late(void)
+{
+    auto user_language = ietf_map.find(config_language.get_value());
+
+    if(user_language != ietf_map.cend()) {
+        gui::language::set(user_language->second);
+        return;
+    }
+
+    auto fallback = ietf_map.find(std::string(DEFAULT_LANGUAGE));
+
+    if(fallback != ietf_map.cend()) {
+        gui::language::set(fallback->second);
+        return;
+    }
+
+    spdlog::critical("language: we're doomed!");
+    spdlog::critical("language: {} doesn't exist!", DEFAULT_LANGUAGE);
+    std::terminate();
+}
+
+void gui::language::set(LanguageIterator new_language)
+{
+    if(new_language != manifest.cend()) {
+        auto path = std::format("lang/lang.{}.json", new_language->ietf);
+
+        auto file = PHYSFS_openRead(path.c_str());
+
+        if(file == nullptr) {
+            spdlog::warn("language: {}: {}", path, io::physfs_error());
+            send_language_event(new_language);
+            return;
+        }
+
+        auto source = std::string(PHYSFS_fileLength(file), char(0x00));
+        PHYSFS_readBytes(file, source.data(), source.size());
+        PHYSFS_close(file);
+
+        auto jsonv = json_parse_string(source.c_str());
+        const auto json = json_value_get_object(jsonv);
+        const auto count = json_object_get_count(json);
+
+        if((jsonv == nullptr) || (json == nullptr) || (count == 0)) {
+            spdlog::warn("language: {}: parse error", path);
+            send_language_event(new_language);
+            json_value_free(jsonv);
+            return;
+        }
+
+        language_map.clear();
+
+        for(size_t i = 0; i < count; ++i) {
+            const auto key = json_object_get_name(json, i);
+            const auto value = json_object_get_value_at(json, i);
+            const auto value_str = json_value_get_string(value);
+
+            if(key && value_str) {
+                language_map.emplace(key, value_str);
+                continue;
+            }
+        }
+
+        json_value_free(jsonv);
+
+        current_language = new_language;
+        config_language.set(new_language->ietf.c_str());
+    }
+
+    send_language_event(new_language);
+}
+
+gui::LanguageIterator gui::language::get_current(void)
+{
+    return current_language;
+}
+
+gui::LanguageIterator gui::language::find(std::string_view ietf)
+{
+    const auto it = ietf_map.find(std::string(ietf));
+    if(it != ietf_map.cend()) {
+        return it->second;
+    }
+    else {
+        return manifest.cend();
+    }
+}
+
+gui::LanguageIterator gui::language::cbegin(void)
+{
+    return manifest.cbegin();
+}
+
+gui::LanguageIterator gui::language::cend(void)
+{
+    return manifest.cend();
+}
+
+std::string_view gui::language::resolve(std::string_view key)
+{
+    const auto it = language_map.find(std::string(key));
+
+    if(it != language_map.cend()) {
+        return it->second;
+    }
+
+    return key;
+}
+
+std::string gui::language::resolve_gui(std::string_view key)
+{
+    // We need window tags to retain their hierarchy when a language
+    // dynamically changes; ImGui allows to provide hidden unique identifiers
+    // to GUI primitives that have their name change dynamically, so we're using this
+    return std::format("{}###{}", gui::language::resolve(key), key);
+}
diff --git a/src/game/client/gui/language.hh b/src/game/client/gui/language.hh
new file mode 100644
index 0000000..90132d7
--- /dev/null
+++ b/src/game/client/gui/language.hh
@@ -0,0 +1,42 @@
+#pragma once
+
+namespace gui
+{
+struct LanguageInfo final {
+    std::string endonym; // Language's self-name
+    std::string display; // Display for the settings GUI
+    std::string ietf;    // Semi-compliant language abbreviation
+};
+
+using LanguageManifest = std::vector<LanguageInfo>;
+using LanguageIterator = LanguageManifest::const_iterator;
+
+struct LanguageSetEvent final {
+    LanguageIterator new_language;
+};
+} // namespace gui
+
+namespace gui::language
+{
+void init(void);
+void init_late(void);
+} // namespace gui::language
+
+namespace gui::language
+{
+void set(LanguageIterator new_language);
+} // namespace gui::language
+
+namespace gui::language
+{
+LanguageIterator get_current(void);
+LanguageIterator find(std::string_view ietf);
+LanguageIterator cbegin(void);
+LanguageIterator cend(void);
+} // namespace gui::language
+
+namespace gui::language
+{
+std::string_view resolve(std::string_view key);
+std::string resolve_gui(std::string_view key);
+} // namespace gui::language
diff --git a/src/game/client/gui/main_menu.cc b/src/game/client/gui/main_menu.cc
new file mode 100644
index 0000000..d60a507
--- /dev/null
+++ b/src/game/client/gui/main_menu.cc
@@ -0,0 +1,172 @@
+#include "client/pch.hh"
+
+#include "client/gui/main_menu.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "core/resource/resource.hh"
+
+#include "core/version.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/language.hh"
+#include "client/gui/window_title.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+
+static std::string str_play;
+static std::string str_resume;
+static std::string str_settings;
+static std::string str_leave;
+static std::string str_quit;
+
+static resource_ptr<TextureGUI> title;
+static float title_aspect;
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if(session::is_ingame() && (event.key == GLFW_KEY_ESCAPE) && (event.action == GLFW_PRESS)) {
+        if(globals::gui_screen == GUI_SCREEN_NONE) {
+            globals::gui_screen = GUI_MAIN_MENU;
+            return;
+        }
+
+        if(globals::gui_screen == GUI_MAIN_MENU) {
+            globals::gui_screen = GUI_SCREEN_NONE;
+            return;
+        }
+    }
+}
+
+static void on_language_set(const gui::LanguageSetEvent& event)
+{
+    str_play = gui::language::resolve_gui("main_menu.play");
+    str_resume = gui::language::resolve_gui("main_menu.resume");
+    str_settings = gui::language::resolve("main_menu.settings");
+    str_leave = gui::language::resolve("main_menu.leave");
+    str_quit = gui::language::resolve("main_menu.quit");
+}
+
+void gui::main_menu::init(void)
+{
+    title = resource::load<TextureGUI>("textures/gui/menu_title.png", TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T);
+
+    if(title == nullptr) {
+        spdlog::critical("main_menu: texture load failed");
+        std::terminate();
+    }
+
+    if(title->size.x > title->size.y) {
+        title_aspect = static_cast<float>(title->size.x) / static_cast<float>(title->size.y);
+    }
+    else {
+        title_aspect = static_cast<float>(title->size.y) / static_cast<float>(title->size.x);
+    }
+
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+    globals::dispatcher.sink<LanguageSetEvent>().connect<&on_language_set>();
+}
+
+void gui::main_menu::shutdown(void)
+{
+    title = nullptr;
+}
+
+void gui::main_menu::layout(void)
+{
+    const auto viewport = ImGui::GetMainViewport();
+    const auto window_start = ImVec2(0.0f, viewport->Size.y * 0.15f);
+    const auto window_size = ImVec2(viewport->Size.x, viewport->Size.y);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###main_menu", nullptr, WINDOW_FLAGS)) {
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0.0f, 2.0f * globals::gui_scale));
+
+        if(session::is_ingame()) {
+            ImGui::Dummy(ImVec2(0.0f, 32.0f * globals::gui_scale));
+        }
+        else {
+            auto reference_height = 0.225f * window_size.y;
+            auto image_width = glm::min(window_size.x, reference_height * title_aspect);
+            auto image_height = image_width / title_aspect;
+            ImGui::SetCursorPosX(0.5f * (window_size.x - image_width));
+            ImGui::Image(title->handle, ImVec2(image_width, image_height));
+        }
+
+        ImGui::Dummy(ImVec2(0.0f, 24.0f * globals::gui_scale));
+
+        const float button_width = 240.0f * globals::gui_scale;
+        const float button_xpos = 0.5f * (window_size.x - button_width);
+
+        if(session::is_ingame()) {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_resume.c_str(), ImVec2(button_width, 0.0f))) {
+                globals::gui_screen = GUI_SCREEN_NONE;
+            }
+
+            ImGui::Spacing();
+        }
+        else {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_play.c_str(), ImVec2(button_width, 0.0f))) {
+                globals::gui_screen = GUI_PLAY_MENU;
+            }
+
+            ImGui::Spacing();
+        }
+
+        ImGui::SetCursorPosX(button_xpos);
+
+        if(ImGui::Button(str_settings.c_str(), ImVec2(button_width, 0.0f))) {
+            globals::gui_screen = GUI_SETTINGS;
+        }
+
+        ImGui::Spacing();
+
+        if(session::is_ingame()) {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_leave.c_str(), ImVec2(button_width, 0.0f))) {
+                session::disconnect("protocol.client_disconnect");
+                globals::gui_screen = GUI_PLAY_MENU;
+                gui::window_title::update();
+            }
+
+            ImGui::Spacing();
+        }
+        else {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_quit.c_str(), ImVec2(button_width, 0.0f))) {
+                glfwSetWindowShouldClose(globals::window, true);
+            }
+
+            ImGui::Spacing();
+        }
+
+        if(!session::is_ingame()) {
+            const auto& padding = ImGui::GetStyle().FramePadding;
+            const auto& spacing = ImGui::GetStyle().ItemSpacing;
+
+            ImGui::PushFont(globals::font_unscii8, 4.0f);
+            ImGui::SetCursorScreenPos(ImVec2(padding.x + spacing.x, window_size.y - ImGui::GetFontSize() - padding.y - spacing.y));
+            ImGui::Text("Voxelius %*s", version::full.size(), version::full.data()); // string_view is not always null-terminated
+            ImGui::PopFont();
+        }
+
+        ImGui::PopStyleVar();
+    }
+
+    ImGui::End();
+}
diff --git a/src/game/client/gui/main_menu.hh b/src/game/client/gui/main_menu.hh
new file mode 100644
index 0000000..205f078
--- /dev/null
+++ b/src/game/client/gui/main_menu.hh
@@ -0,0 +1,8 @@
+#pragma once
+
+namespace gui::main_menu
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+} // namespace gui::main_menu
diff --git a/src/game/client/gui/message_box.cc b/src/game/client/gui/message_box.cc
new file mode 100644
index 0000000..59e2d33
--- /dev/null
+++ b/src/game/client/gui/message_box.cc
@@ -0,0 +1,95 @@
+#include "client/pch.hh"
+
+#include "client/gui/message_box.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/language.hh"
+
+#include "client/globals.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+
+struct Button final {
+    gui::message_box_action action;
+    std::string str_title;
+};
+
+static std::string str_title;
+static std::string str_subtitle;
+static std::vector<Button> buttons;
+
+void gui::message_box::init(void)
+{
+    str_title = std::string();
+    str_subtitle = std::string();
+    buttons.clear();
+}
+
+void gui::message_box::layout(void)
+{
+    const auto viewport = ImGui::GetMainViewport();
+    const auto window_start = ImVec2(0.0f, viewport->Size.y * 0.30f);
+    const auto window_size = ImVec2(viewport->Size.x, viewport->Size.y * 0.70f);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###UIProgress", nullptr, WINDOW_FLAGS)) {
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0.0f, 1.0f * globals::gui_scale));
+
+        const float title_width = ImGui::CalcTextSize(str_title.c_str()).x;
+        ImGui::SetCursorPosX(0.5f * (window_size.x - title_width));
+        ImGui::TextUnformatted(str_title.c_str());
+
+        ImGui::Dummy(ImVec2(0.0f, 8.0f * globals::gui_scale));
+
+        if(!str_subtitle.empty()) {
+            const float subtitle_width = ImGui::CalcTextSize(str_subtitle.c_str()).x;
+            ImGui::SetCursorPosX(0.5f * (window_size.x - subtitle_width));
+            ImGui::TextUnformatted(str_subtitle.c_str());
+        }
+
+        ImGui::Dummy(ImVec2(0.0f, 32.0f * globals::gui_scale));
+
+        for(const auto& button : buttons) {
+            const float button_width = 0.8f * ImGui::CalcItemWidth();
+            ImGui::SetCursorPosX(0.5f * (window_size.x - button_width));
+
+            if(ImGui::Button(button.str_title.c_str(), ImVec2(button_width, 0.0f))) {
+                if(button.action) {
+                    button.action();
+                }
+            }
+        }
+
+        ImGui::PopStyleVar();
+    }
+
+    ImGui::End();
+}
+
+void gui::message_box::reset(void)
+{
+    str_title.clear();
+    str_subtitle.clear();
+    buttons.clear();
+}
+
+void gui::message_box::set_title(std::string_view title)
+{
+    str_title = gui::language::resolve(title);
+}
+
+void gui::message_box::set_subtitle(std::string_view subtitle)
+{
+    str_subtitle = gui::language::resolve(subtitle);
+}
+
+void gui::message_box::add_button(std::string_view text, const message_box_action& action)
+{
+    Button button = {};
+    button.str_title = std::format("{}###MessageBox_Button{}", gui::language::resolve(text), buttons.size());
+    button.action = action;
+
+    buttons.push_back(button);
+}
diff --git a/src/game/client/gui/message_box.hh b/src/game/client/gui/message_box.hh
new file mode 100644
index 0000000..74a6fbf
--- /dev/null
+++ b/src/game/client/gui/message_box.hh
@@ -0,0 +1,20 @@
+#pragma once
+
+namespace gui
+{
+using message_box_action = void (*)(void);
+} // namespace gui
+
+namespace gui::message_box
+{
+void init(void);
+void layout(void);
+void reset(void);
+} // namespace gui::message_box
+
+namespace gui::message_box
+{
+void set_title(std::string_view title);
+void set_subtitle(std::string_view subtitle);
+void add_button(std::string_view text, const message_box_action& action);
+} // namespace gui::message_box
diff --git a/src/game/client/gui/metrics.cc b/src/game/client/gui/metrics.cc
new file mode 100644
index 0000000..bf46649
--- /dev/null
+++ b/src/game/client/gui/metrics.cc
@@ -0,0 +1,103 @@
+#include "client/pch.hh"
+
+#include "client/gui/metrics.hh"
+
+#include "core/version.hh"
+
+#include "shared/entity/grounded.hh"
+#include "shared/entity/head.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/coord.hh"
+
+#include "client/entity/camera.hh"
+
+#include "client/gui/imdraw_ext.hh"
+
+#include "client/game.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoInputs
+    | ImGuiWindowFlags_NoNav;
+
+static std::basic_string<GLubyte> r_version;
+static std::basic_string<GLubyte> r_renderer;
+
+void gui::metrics::init(void)
+{
+    r_version = std::basic_string<GLubyte>(glGetString(GL_VERSION));
+    r_renderer = std::basic_string<GLubyte>(glGetString(GL_RENDERER));
+}
+
+void gui::metrics::layout(void)
+{
+    if(!session::is_ingame()) {
+        // Sanity check; we are checking this
+        // in client_game before calling layout
+        // on HUD-ish GUI systems but still
+        return;
+    }
+
+    auto draw_list = ImGui::GetForegroundDrawList();
+
+    // FIXME: maybe use style colors instead of hardcoding?
+    auto text_color = ImGui::GetColorU32(ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+    auto shadow_color = ImGui::GetColorU32(ImVec4(0.1f, 0.1f, 0.1f, 1.0f));
+
+    auto font_size = 4.0f;
+    auto position = ImVec2(8.0f, 8.0f);
+    auto y_step = 1.5f * globals::gui_scale * font_size;
+
+    // Draw version
+    auto version_line = std::format("Voxelius {}", version::full);
+    gui::imdraw_ext::text_shadow(version_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += 1.5f * y_step;
+
+    // Draw client-side window framerate metrics
+    auto window_framerate = 1.0f / globals::window_frametime_avg;
+    auto window_frametime = 1000.0f * globals::window_frametime_avg;
+    auto window_fps_line = std::format("{:.02f} FPS [{:.02f} ms]", window_framerate, window_frametime);
+    gui::imdraw_ext::text_shadow(window_fps_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += y_step;
+
+    // Draw world rendering metrics
+    auto drawcall_line = std::format("World: {} DC / {} TRI", globals::num_drawcalls, globals::num_triangles);
+    gui::imdraw_ext::text_shadow(drawcall_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += y_step;
+
+    // Draw OpenGL version string
+    auto r_version_line = std::format("GL_VERSION: {}", reinterpret_cast<const char*>(r_version.c_str()));
+    gui::imdraw_ext::text_shadow(r_version_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += y_step;
+
+    // Draw OpenGL renderer string
+    auto r_renderer_line = std::format("GL_RENDERER: {}", reinterpret_cast<const char*>(r_renderer.c_str()));
+    gui::imdraw_ext::text_shadow(r_renderer_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += 1.5f * y_step;
+
+    const auto& head = globals::dimension->entities.get<entity::Head>(globals::player);
+    const auto& transform = globals::dimension->entities.get<entity::Transform>(globals::player);
+    const auto& velocity = globals::dimension->entities.get<entity::Velocity>(globals::player);
+
+    // Draw player voxel position
+    auto voxel_position = coord::to_voxel(transform.chunk, transform.local);
+    auto voxel_line = std::format("voxel: [{} {} {}]", voxel_position.x, voxel_position.y, voxel_position.z);
+    gui::imdraw_ext::text_shadow(voxel_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += y_step;
+
+    // Draw player world position
+    auto world_line = std::format("world: [{} {} {}] [{:.03f} {:.03f} {:.03f}]", transform.chunk.x, transform.chunk.y, transform.chunk.z,
+        transform.local.x, transform.local.y, transform.local.z);
+    gui::imdraw_ext::text_shadow(world_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += y_step;
+
+    // Draw player look angles
+    auto angles = glm::degrees(transform.angles + head.angles);
+    auto angle_line = std::format("angle: [{: .03f} {: .03f} {: .03f}]", angles[0], angles[1], angles[2]);
+    gui::imdraw_ext::text_shadow(angle_line, position, text_color, shadow_color, globals::font_unscii8, draw_list, font_size);
+    position.y += y_step;
+}
diff --git a/src/game/client/gui/metrics.hh b/src/game/client/gui/metrics.hh
new file mode 100644
index 0000000..4898332
--- /dev/null
+++ b/src/game/client/gui/metrics.hh
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace gui::metrics
+{
+void init(void);
+void layout(void);
+} // namespace gui::metrics
diff --git a/src/game/client/gui/play_menu.cc b/src/game/client/gui/play_menu.cc
new file mode 100644
index 0000000..5b1ecde
--- /dev/null
+++ b/src/game/client/gui/play_menu.cc
@@ -0,0 +1,594 @@
+#include "client/pch.hh"
+
+#include "client/gui/play_menu.hh"
+
+#include "core/config/boolean.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "core/utils/string.hh"
+
+#include "core/version.hh"
+
+#include "shared/protocol.hh"
+
+#include "client/gui/bother.hh"
+#include "client/gui/gui_screen.hh"
+#include "client/gui/language.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/game.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+constexpr static std::string_view DEFAULT_SERVER_NAME = "Voxelius Server";
+constexpr static std::string_view SERVERS_TXT = "servers.txt";
+
+constexpr static std::size_t MAX_SERVER_ITEM_NAME = 18;
+
+enum class item_status : unsigned int {
+    UNKNOWN = 0x0000U,
+    PINGING = 0x0001U,
+    REACHED = 0x0002U,
+    FAILURE = 0x0003U,
+};
+
+struct ServerStatusItem final {
+    std::string name;
+    std::string password;
+    std::string hostname;
+    std::uint16_t port;
+
+    // Things pulled from bother events
+    std::uint16_t num_players;
+    std::uint16_t max_players;
+    std::string motd;
+    std::uint16_t game_version_major;
+    std::uint16_t game_version_minor;
+    std::uint16_t game_version_patch;
+
+    // Unique identifier that monotonically
+    // grows with each new server added and
+    // doesn't reset with each server removed
+    unsigned int identity;
+
+    item_status status;
+};
+
+static std::string str_tab_servers;
+
+static std::string str_join;
+static std::string str_connect;
+static std::string str_add;
+static std::string str_edit;
+static std::string str_remove;
+static std::string str_refresh;
+
+static std::string str_status_init;
+static std::string str_status_ping;
+static std::string str_status_fail;
+
+static std::string input_itemname;
+static std::string input_hostname;
+static std::string input_password;
+
+static unsigned int next_identity;
+static std::deque<ServerStatusItem*> servers_deque;
+static ServerStatusItem* selected_server;
+static bool editing_server;
+static bool adding_server;
+static bool needs_focus;
+
+static void parse_hostname(ServerStatusItem* item, const std::string& hostname)
+{
+    auto parts = utils::split(hostname, ":");
+
+    if(!parts[0].empty()) {
+        item->hostname = parts[0];
+    }
+    else {
+        item->hostname = std::string("localhost");
+    }
+
+    if(parts.size() >= 2) {
+        item->port = glm::clamp<std::uint16_t>(static_cast<std::uint16_t>(strtoul(parts[1].c_str(), nullptr, 10)), 1024, UINT16_MAX);
+    }
+    else {
+        item->port = protocol::PORT;
+    }
+}
+
+static void add_new_server(void)
+{
+    auto item = new ServerStatusItem();
+    item->port = protocol::PORT;
+    item->max_players = UINT16_MAX;
+    item->num_players = UINT16_MAX;
+    item->identity = next_identity;
+    item->status = item_status::UNKNOWN;
+    item->game_version_major = 0U;
+    item->game_version_minor = 0U;
+    item->game_version_patch = 0U;
+
+    next_identity += 1U;
+
+    input_itemname = DEFAULT_SERVER_NAME;
+    input_hostname = std::string();
+    input_password = std::string();
+
+    servers_deque.push_back(item);
+    selected_server = item;
+    editing_server = true;
+    adding_server = true;
+    needs_focus = true;
+}
+
+static void edit_selected_server(void)
+{
+    input_itemname = selected_server->name;
+
+    if(selected_server->port != protocol::PORT) {
+        input_hostname = std::format("{}:{}", selected_server->hostname, selected_server->port);
+    }
+    else {
+        input_hostname = selected_server->hostname;
+    }
+
+    input_password = selected_server->password;
+
+    editing_server = true;
+    needs_focus = true;
+}
+
+static void remove_selected_server(void)
+{
+    gui::bother::cancel(selected_server->identity);
+
+    for(auto it = servers_deque.cbegin(); it != servers_deque.cend(); ++it) {
+        if(selected_server == (*it)) {
+            delete selected_server;
+            selected_server = nullptr;
+            servers_deque.erase(it);
+            return;
+        }
+    }
+}
+
+static void join_selected_server(void)
+{
+    if(!session::peer) {
+        session::connect(selected_server->hostname.c_str(), selected_server->port, selected_server->password.c_str());
+    }
+}
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if((event.key == GLFW_KEY_ESCAPE) && (event.action == GLFW_PRESS)) {
+        if(globals::gui_screen == GUI_PLAY_MENU) {
+            if(editing_server) {
+                if(adding_server) {
+                    remove_selected_server();
+                }
+                else {
+                    input_itemname.clear();
+                    input_hostname.clear();
+                    input_password.clear();
+                    editing_server = false;
+                    adding_server = false;
+                    return;
+                }
+            }
+
+            globals::gui_screen = GUI_MAIN_MENU;
+            selected_server = nullptr;
+            return;
+        }
+    }
+}
+
+static void on_language_set(const gui::LanguageSetEvent& event)
+{
+    str_tab_servers = gui::language::resolve_gui("play_menu.tab.servers");
+
+    str_join = gui::language::resolve_gui("play_menu.join");
+    str_connect = gui::language::resolve_gui("play_menu.connect");
+    str_add = gui::language::resolve_gui("play_menu.add");
+    str_edit = gui::language::resolve_gui("play_menu.edit");
+    str_remove = gui::language::resolve_gui("play_menu.remove");
+    str_refresh = gui::language::resolve_gui("play_menu.refresh");
+
+    str_status_init = gui::language::resolve("play_menu.status.init");
+    str_status_ping = gui::language::resolve("play_menu.status.ping");
+    str_status_fail = gui::language::resolve("play_menu.status.fail");
+}
+
+static void on_bother_response(const gui::BotherResponseEvent& event)
+{
+    for(auto item : servers_deque) {
+        if(item->identity == event.identity) {
+            if(event.is_server_unreachable) {
+                item->num_players = UINT16_MAX;
+                item->max_players = UINT16_MAX;
+                item->motd = str_status_fail;
+                item->status = item_status::FAILURE;
+                item->game_version_major = 0U;
+                item->game_version_minor = 0U;
+                item->game_version_patch = 0U;
+            }
+            else {
+                item->num_players = event.num_players;
+                item->max_players = event.max_players;
+                item->motd = event.motd;
+                item->status = item_status::REACHED;
+                item->game_version_major = event.game_version_major;
+                item->game_version_minor = event.game_version_minor;
+                item->game_version_patch = event.game_version_patch;
+            }
+
+            break;
+        }
+    }
+}
+
+static void layout_server_item(ServerStatusItem* item)
+{
+    // Preserve the cursor at which we draw stuff
+    const ImVec2& cursor = ImGui::GetCursorScreenPos();
+    const ImVec2& padding = ImGui::GetStyle().FramePadding;
+    const ImVec2& spacing = ImGui::GetStyle().ItemSpacing;
+
+    const float item_width = ImGui::GetContentRegionAvail().x;
+    const float line_height = ImGui::GetTextLineHeightWithSpacing();
+    const std::string sid = std::format("###play_menu.servers.{}", static_cast<void*>(item));
+    if(ImGui::Selectable(sid.c_str(), (item == selected_server), 0, ImVec2(0.0, 2.0f * (line_height + padding.y + spacing.y)))) {
+        selected_server = item;
+        editing_server = false;
+    }
+
+    if(ImGui::IsItemHovered() && ImGui::IsMouseDoubleClicked(ImGuiMouseButton_Left)) {
+        // Double clicked - join the selected server
+        join_selected_server();
+    }
+
+    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+
+    if(item == selected_server) {
+        const ImVec2 start = ImVec2(cursor.x, cursor.y);
+        const ImVec2 end = ImVec2(start.x + item_width, start.y + 2.0f * (line_height + padding.y + spacing.y));
+        draw_list->AddRect(start, end, ImGui::GetColorU32(ImGuiCol_Text), 0.0f, 0, static_cast<float>(globals::gui_scale));
+    }
+
+    const ImVec2 name_pos = ImVec2(cursor.x + padding.x + 0.5f * spacing.x, cursor.y + padding.y);
+    draw_list->AddText(name_pos, ImGui::GetColorU32(ImGuiCol_Text), item->name.c_str(), item->name.c_str() + item->name.size());
+
+    if(item->status == item_status::REACHED) {
+        auto stats = std::format("{}/{}", item->num_players, item->max_players);
+        auto stats_size = ImGui::CalcTextSize(stats.c_str(), stats.c_str() + stats.size());
+        auto stats_pos = ImVec2(cursor.x + item_width - stats_size.x - padding.x, cursor.y + padding.y);
+        draw_list->AddText(stats_pos, ImGui::GetColorU32(ImGuiCol_TextDisabled), stats.c_str(), stats.c_str() + stats.size());
+
+        auto major_version_mismatch = item->game_version_major != version::major;
+        auto minor_version_mismatch = item->game_version_minor != version::minor;
+        auto patch_version_mismatch = item->game_version_patch != version::patch;
+
+        ImU32 version_color;
+
+        if(major_version_mismatch || minor_version_mismatch || patch_version_mismatch) {
+            version_color = ImGui::GetColorU32(major_version_mismatch ? ImGuiCol_PlotLinesHovered : ImGuiCol_DragDropTarget);
+        }
+        else {
+            version_color = ImGui::GetColorU32(ImGuiCol_PlotHistogram);
+        }
+
+        ImGui::PushFont(globals::font_unscii8, 4.0f);
+
+        std::string version_toast;
+
+        if(item->game_version_major < 16U) {
+            // Pre v16.x.x servers didn't send minor and patch versions
+            // and also used a different versioning scheme; post v16 the
+            // major version became the protocol version and the semver lost the tweak part
+            version_toast = std::string("15.x.x");
+        }
+        else {
+            version_toast = std::format("{}.{}.{}", item->game_version_major, item->game_version_minor, item->game_version_patch);
+        }
+
+        auto version_size = ImGui::CalcTextSize(version_toast.c_str(), version_toast.c_str() + version_toast.size());
+        auto version_pos = ImVec2(stats_pos.x - version_size.x - padding.x - 4.0f * globals::gui_scale,
+            cursor.y + padding.y + 0.5f * (stats_size.y - version_size.y));
+        auto version_end = ImVec2(version_pos.x + version_size.x, version_pos.y + version_size.y);
+
+        auto outline_pos = ImVec2(version_pos.x - 2U * globals::gui_scale, version_pos.y - 2U * globals::gui_scale);
+        auto outline_end = ImVec2(version_end.x + 2U * globals::gui_scale, version_end.y + 2U * globals::gui_scale);
+        auto outline_thickness = glm::max<float>(1.0f, 0.5f * static_cast<float>(globals::gui_scale));
+
+        draw_list->AddRect(outline_pos, outline_end, version_color, 0.0f, 0, outline_thickness);
+        draw_list->AddText(version_pos, version_color, version_toast.c_str(), version_toast.c_str() + version_toast.size());
+
+        ImGui::PopFont();
+    }
+
+    ImU32 motd_color = {};
+    const std::string* motd_text;
+
+    switch(item->status) {
+        case item_status::UNKNOWN:
+            motd_color = ImGui::GetColorU32(ImGuiCol_TextDisabled);
+            motd_text = &str_status_init;
+            break;
+        case item_status::PINGING:
+            motd_color = ImGui::GetColorU32(ImGuiCol_TextDisabled);
+            motd_text = &str_status_ping;
+            break;
+        case item_status::REACHED:
+            motd_color = ImGui::GetColorU32(ImGuiCol_TextDisabled);
+            motd_text = &item->motd;
+            break;
+        default:
+            motd_color = ImGui::GetColorU32(ImGuiCol_PlotLinesHovered);
+            motd_text = &str_status_fail;
+            break;
+    }
+
+    const ImVec2 motd_pos = ImVec2(cursor.x + padding.x + 0.5f * spacing.x, cursor.y + padding.y + line_height);
+    draw_list->AddText(motd_pos, motd_color, motd_text->c_str(), motd_text->c_str() + motd_text->size());
+}
+
+static void layout_server_edit(ServerStatusItem* item)
+{
+    if(needs_focus) {
+        ImGui::SetKeyboardFocusHere();
+        needs_focus = false;
+    }
+
+    ImGui::SetNextItemWidth(-0.25f * ImGui::GetContentRegionAvail().x);
+    ImGui::InputText("###play_menu.servers.edit_itemname", &input_itemname);
+    ImGui::SameLine();
+
+    const bool ignore_input = utils::is_whitespace(input_itemname) || input_hostname.empty();
+
+    ImGui::BeginDisabled(ignore_input);
+
+    if(ImGui::Button("OK###play_menu.servers.submit_input", ImVec2(-1.0f, 0.0f))
+        || (!ignore_input && ImGui::IsKeyPressed(ImGuiKey_Enter))) {
+        parse_hostname(item, input_hostname);
+        item->password = input_password;
+        item->name = input_itemname.substr(0, MAX_SERVER_ITEM_NAME);
+        item->status = item_status::UNKNOWN;
+        editing_server = false;
+        adding_server = false;
+
+        input_itemname.clear();
+        input_hostname.clear();
+
+        gui::bother::cancel(item->identity);
+    }
+
+    ImGui::EndDisabled();
+
+    ImGuiInputTextFlags hostname_flags = ImGuiInputTextFlags_CharsNoBlank;
+
+    if(client_game::streamer_mode.get_value()) {
+        // Hide server hostname to avoid things like
+        // followers flooding the server that is streamed online
+        hostname_flags |= ImGuiInputTextFlags_Password;
+    }
+
+    ImGui::SetNextItemWidth(-0.50f * ImGui::GetContentRegionAvail().x);
+    ImGui::InputText("###play_menu.servers.edit_hostname", &input_hostname, hostname_flags);
+    ImGui::SameLine();
+
+    ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+    ImGui::InputText("###play_menu.servers.edit_password", &input_password, ImGuiInputTextFlags_Password);
+}
+
+static void layout_servers(void)
+{
+    if(ImGui::BeginListBox("###play_menu.servers.listbox", ImVec2(-1.0f, -1.0f))) {
+        for(ServerStatusItem* item : servers_deque) {
+            if(editing_server && item == selected_server) {
+                layout_server_edit(item);
+            }
+            else {
+                layout_server_item(item);
+            }
+        }
+
+        ImGui::EndListBox();
+    }
+}
+
+static void layout_servers_buttons(void)
+{
+    auto avail_width = ImGui::GetContentRegionAvail().x;
+
+    // Can only join when selected and not editing
+    ImGui::BeginDisabled(!selected_server || editing_server);
+
+    if(ImGui::Button(str_join.c_str(), ImVec2(-0.50f * avail_width, 0.0f))) {
+        join_selected_server();
+    }
+
+    ImGui::EndDisabled();
+    ImGui::SameLine();
+
+    // Can only connect directly when not editing anything
+    ImGui::BeginDisabled(editing_server);
+
+    if(ImGui::Button(str_connect.c_str(), ImVec2(-1.00f, 0.0f))) {
+        globals::gui_screen = GUI_DIRECT_CONNECTION;
+    }
+
+    ImGui::EndDisabled();
+
+    // Can only add when not editing anything
+    ImGui::BeginDisabled(editing_server);
+
+    if(ImGui::Button(str_add.c_str(), ImVec2(-0.75f * avail_width, 0.0f))) {
+        add_new_server();
+    }
+
+    ImGui::EndDisabled();
+    ImGui::SameLine();
+
+    // Can only edit when selected and not editing
+    ImGui::BeginDisabled(!selected_server || editing_server);
+
+    if(ImGui::Button(str_edit.c_str(), ImVec2(-0.50f * avail_width, 0.0f))) {
+        edit_selected_server();
+    }
+
+    ImGui::EndDisabled();
+    ImGui::SameLine();
+
+    // Can only remove when selected and not editing
+    ImGui::BeginDisabled(!selected_server || editing_server);
+
+    if(ImGui::Button(str_remove.c_str(), ImVec2(-0.25f * avail_width, 0.0f))) {
+        remove_selected_server();
+    }
+
+    ImGui::EndDisabled();
+    ImGui::SameLine();
+
+    if(ImGui::Button(str_refresh.c_str(), ImVec2(-1.0f, 0.0f))) {
+        for(ServerStatusItem* item : servers_deque) {
+            if(item->status != item_status::PINGING) {
+                if(!editing_server || item != selected_server) {
+                    item->status = item_status::UNKNOWN;
+                    gui::bother::cancel(item->identity);
+                }
+            }
+        }
+    }
+}
+
+void gui::play_menu::init(void)
+{
+    if(auto file = PHYSFS_openRead(std::string(SERVERS_TXT).c_str())) {
+        auto source = std::string(PHYSFS_fileLength(file), char(0x00));
+        PHYSFS_readBytes(file, source.data(), source.size());
+        PHYSFS_close(file);
+
+        auto stream = std::istringstream(source);
+        auto line = std::string();
+
+        while(std::getline(stream, line)) {
+            auto parts = utils::split(line, "%");
+
+            auto item = new ServerStatusItem();
+            item->port = protocol::PORT;
+            item->max_players = UINT16_MAX;
+            item->num_players = UINT16_MAX;
+            item->identity = next_identity;
+            item->status = item_status::UNKNOWN;
+            item->game_version_major = version::major;
+            item->game_version_minor = version::minor;
+            item->game_version_patch = version::patch;
+
+            next_identity += 1U;
+
+            parse_hostname(item, parts[0]);
+
+            if(parts.size() >= 2) {
+                item->password = parts[1];
+            }
+            else {
+                item->password = std::string();
+            }
+
+            if(parts.size() >= 3) {
+                item->name = parts[2].substr(0, MAX_SERVER_ITEM_NAME);
+            }
+            else {
+                item->name = DEFAULT_SERVER_NAME;
+            }
+
+            servers_deque.push_back(item);
+        }
+    }
+
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+    globals::dispatcher.sink<LanguageSetEvent>().connect<&on_language_set>();
+    globals::dispatcher.sink<BotherResponseEvent>().connect<&on_bother_response>();
+}
+
+void gui::play_menu::shutdown(void)
+{
+    std::ostringstream stream;
+
+    for(const auto item : servers_deque) {
+        stream << std::format("{}:{}%{}%{}", item->hostname, item->port, item->password, item->name) << std::endl;
+    }
+
+    if(auto file = PHYSFS_openWrite(std::string(SERVERS_TXT).c_str())) {
+        auto source = stream.str();
+        PHYSFS_writeBytes(file, source.data(), source.size());
+        PHYSFS_close(file);
+    }
+
+    for(auto item : servers_deque)
+        delete item;
+    servers_deque.clear();
+}
+
+void gui::play_menu::layout(void)
+{
+    const auto viewport = ImGui::GetMainViewport();
+    const auto window_start = ImVec2(viewport->Size.x * 0.05f, viewport->Size.y * 0.05f);
+    const auto window_size = ImVec2(viewport->Size.x * 0.90f, viewport->Size.y * 0.90f);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###play_menu", nullptr, WINDOW_FLAGS)) {
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(3.0f * globals::gui_scale, 3.0f * globals::gui_scale));
+
+        if(ImGui::BeginTabBar("###play_menu.tabs", ImGuiTabBarFlags_FittingPolicyResizeDown)) {
+            if(ImGui::TabItemButton("<<")) {
+                globals::gui_screen = GUI_MAIN_MENU;
+                selected_server = nullptr;
+                editing_server = false;
+            }
+
+            if(ImGui::BeginTabItem(str_tab_servers.c_str())) {
+                if(ImGui::BeginChild("###play_menu.servers.child", ImVec2(0.0f, -2.0f * ImGui::GetFrameHeightWithSpacing()))) {
+                    layout_servers();
+                }
+
+                ImGui::EndChild();
+
+                layout_servers_buttons();
+
+                ImGui::EndTabItem();
+            }
+
+            if(ImGui::BeginTabItem("debug###play_menu.debug.child")) {
+                ImGui::ShowStyleEditor();
+                ImGui::EndTabItem();
+            }
+
+            ImGui::EndTabBar();
+        }
+
+        ImGui::PopStyleVar();
+    }
+
+    ImGui::End();
+}
+
+void gui::play_menu::update_late(void)
+{
+    for(auto item : servers_deque) {
+        if(item->status == item_status::UNKNOWN) {
+            gui::bother::ping(item->identity, item->hostname.c_str(), item->port);
+            item->status = item_status::PINGING;
+            continue;
+        }
+    }
+}
diff --git a/src/game/client/gui/play_menu.hh b/src/game/client/gui/play_menu.hh
new file mode 100644
index 0000000..1b1f003
--- /dev/null
+++ b/src/game/client/gui/play_menu.hh
@@ -0,0 +1,9 @@
+#pragma once
+
+namespace gui::play_menu
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+void update_late(void);
+} // namespace gui::play_menu
diff --git a/src/game/client/gui/progress_bar.cc b/src/game/client/gui/progress_bar.cc
new file mode 100644
index 0000000..1732f72
--- /dev/null
+++ b/src/game/client/gui/progress_bar.cc
@@ -0,0 +1,111 @@
+#include "client/pch.hh"
+
+#include "client/gui/progress_bar.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "client/gui/language.hh"
+
+#include "client/globals.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+
+static std::string str_title;
+static std::string str_button;
+static gui::progress_bar_action button_action;
+
+void gui::progress_bar::init(void)
+{
+    str_title = "Loading";
+    str_button = std::string();
+    button_action = nullptr;
+}
+
+void gui::progress_bar::layout(void)
+{
+    const auto viewport = ImGui::GetMainViewport();
+    const auto window_start = ImVec2(0.0f, viewport->Size.y * 0.30f);
+    const auto window_size = ImVec2(viewport->Size.x, viewport->Size.y * 0.70f);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###UIProgress", nullptr, WINDOW_FLAGS)) {
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0.0f, 1.0f * globals::gui_scale));
+
+        const float title_width = ImGui::CalcTextSize(str_title.c_str()).x;
+        ImGui::SetCursorPosX(0.5f * (window_size.x - title_width));
+        ImGui::TextUnformatted(str_title.c_str());
+
+        ImGui::Dummy(ImVec2(0.0f, 8.0f * globals::gui_scale));
+
+        const ImVec2 cursor = ImGui::GetCursorPos();
+
+        const std::size_t num_bars = 32;
+        const float spinner_width = 0.8f * ImGui::CalcItemWidth();
+        const float bar_width = spinner_width / static_cast<float>(num_bars);
+        const float bar_height = 0.5f * ImGui::GetFrameHeight();
+
+        const float base_xpos = window_start.x + 0.5f * (window_size.x - spinner_width) + 0.5f;
+        const float base_ypos = window_start.y + cursor.y;
+        const float phase = 2.0f * static_cast<float>(ImGui::GetTime());
+
+        const ImVec4& background = ImGui::GetStyleColorVec4(ImGuiCol_Button);
+        const ImVec4& foreground = ImGui::GetStyleColorVec4(ImGuiCol_PlotHistogram);
+
+        for(std::size_t i = 0; i < num_bars; ++i) {
+            const float sinval = std::sinf(float(M_PI) * static_cast<float>(i) / static_cast<float>(num_bars) - phase);
+            const float modifier = std::exp(-8.0f * (0.5f + 0.5f * sinval));
+
+            ImVec4 color = {};
+            color.x = glm::mix(background.x, foreground.x, modifier);
+            color.y = glm::mix(background.y, foreground.y, modifier);
+            color.z = glm::mix(background.z, foreground.z, modifier);
+            color.w = glm::mix(background.w, foreground.w, modifier);
+
+            const ImVec2 start = ImVec2(base_xpos + bar_width * i, base_ypos);
+            const ImVec2 end = ImVec2(start.x + bar_width, start.y + bar_height);
+            ImGui::GetWindowDrawList()->AddRectFilled(start, end, ImGui::GetColorU32(color));
+        }
+
+        // The NewLine call tricks ImGui into correctly padding the
+        // next widget that comes after the progress_bar spinner; this
+        // is needed to ensure the button is located in the correct place
+        ImGui::NewLine();
+
+        if(!str_button.empty()) {
+            ImGui::Dummy(ImVec2(0.0f, 32.0f * globals::gui_scale));
+
+            const float button_width = 0.8f * ImGui::CalcItemWidth();
+            ImGui::SetCursorPosX(0.5f * (window_size.x - button_width));
+
+            if(ImGui::Button(str_button.c_str(), ImVec2(button_width, 0.0f))) {
+                if(button_action) {
+                    button_action();
+                }
+            }
+        }
+
+        ImGui::PopStyleVar();
+    }
+
+    ImGui::End();
+}
+
+void gui::progress_bar::reset(void)
+{
+    str_title.clear();
+    str_button.clear();
+    button_action = nullptr;
+}
+
+void gui::progress_bar::set_title(std::string_view title)
+{
+    str_title = gui::language::resolve(title);
+}
+
+void gui::progress_bar::set_button(std::string_view text, const progress_bar_action& action)
+{
+    str_button = std::format("{}###ProgressBar_Button", gui::language::resolve(text));
+    button_action = action;
+}
diff --git a/src/game/client/gui/progress_bar.hh b/src/game/client/gui/progress_bar.hh
new file mode 100644
index 0000000..7a0581d
--- /dev/null
+++ b/src/game/client/gui/progress_bar.hh
@@ -0,0 +1,19 @@
+#pragma once
+
+namespace gui
+{
+using progress_bar_action = void (*)(void);
+} // namespace gui
+
+namespace gui::progress_bar
+{
+void init(void);
+void layout(void);
+} // namespace gui::progress_bar
+
+namespace gui::progress_bar
+{
+void reset(void);
+void set_title(std::string_view title);
+void set_button(std::string_view text, const progress_bar_action& action);
+} // namespace gui::progress_bar
diff --git a/src/game/client/gui/scoreboard.cc b/src/game/client/gui/scoreboard.cc
new file mode 100644
index 0000000..4f14de8
--- /dev/null
+++ b/src/game/client/gui/scoreboard.cc
@@ -0,0 +1,103 @@
+#include "client/pch.hh"
+
+#include "client/gui/scoreboard.hh"
+
+#include "core/io/config_map.hh"
+
+#include "shared/protocol.hh"
+
+#include "client/config/keybind.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/settings.hh"
+
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoNav | ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoInputs
+    | ImGuiWindowFlags_NoBackground;
+
+static config::KeyBind list_key(GLFW_KEY_TAB);
+
+static std::vector<std::string> usernames;
+static float max_username_size;
+
+static void on_scoreboard_update_packet(const protocol::ScoreboardUpdate& packet)
+{
+    usernames = packet.names;
+    max_username_size = 0.0f;
+}
+
+void gui::scoreboard::init(void)
+{
+    globals::client_config.add_value("scoreboard.key", list_key);
+
+    settings::add_keybind(3, list_key, settings_location::KEYBOARD_MISC, "key.scoreboard");
+
+    globals::dispatcher.sink<protocol::ScoreboardUpdate>().connect<&on_scoreboard_update_packet>();
+}
+
+void gui::scoreboard::layout(void)
+{
+    if(globals::gui_screen == GUI_SCREEN_NONE && session::is_ingame() && glfwGetKey(globals::window, list_key.get_key()) == GLFW_PRESS) {
+        const auto viewport = ImGui::GetMainViewport();
+        const auto window_start = ImVec2(0.0f, 0.0f);
+        const auto window_size = ImVec2(viewport->Size.x, viewport->Size.y);
+
+        ImGui::SetNextWindowPos(window_start);
+        ImGui::SetNextWindowSize(window_size);
+
+        if(!ImGui::Begin("###chat", nullptr, WINDOW_FLAGS)) {
+            ImGui::End();
+            return;
+        }
+
+        ImGui::PushFont(globals::font_unscii16, 8.0f);
+
+        const auto& padding = ImGui::GetStyle().FramePadding;
+        const auto& spacing = ImGui::GetStyle().ItemSpacing;
+        auto font = globals::font_unscii8;
+
+        // Figure out the maximum username size
+        for(const auto& username : usernames) {
+            const ImVec2 size = ImGui::CalcTextSize(username.c_str(), username.c_str() + username.size());
+
+            if(size.x > max_username_size) {
+                max_username_size = size.x;
+            }
+        }
+
+        // Having a minimum size allows for
+        // generally better in-game visibility
+        const float true_size = glm::max<float>(0.25f * window_size.x, max_username_size);
+
+        // Figure out username rect dimensions
+        const float rect_start_x = 0.5f * window_size.x - 0.5f * true_size;
+        const float rect_start_y = 0.15f * window_size.y;
+        const float rect_size_x = 2.0f * padding.x + true_size;
+        const float rect_size_y = 2.0f * padding.y + 0.5f * ImGui::GetFontSize();
+
+        // const ImU32 border_col = ImGui::GetColorU32(ImGuiCol_Border, 1.00f);
+        const ImU32 rect_col = ImGui::GetColorU32(ImGuiCol_FrameBg, 0.80f);
+        const ImU32 text_col = ImGui::GetColorU32(ImGuiCol_Text, 1.00f);
+
+        ImDrawList* draw_list = ImGui::GetWindowDrawList();
+
+        // Slightly space apart individual rows
+        const float row_step_y = rect_size_y + 0.5f * spacing.y;
+
+        for(std::size_t i = 0; i < usernames.size(); ++i) {
+            const ImVec2 rect_a = ImVec2(rect_start_x, rect_start_y + i * row_step_y);
+            const ImVec2 rect_b = ImVec2(rect_a.x + rect_size_x, rect_a.y + rect_size_y);
+            const ImVec2 text_pos = ImVec2(rect_a.x + padding.x, rect_a.y + padding.y);
+
+            // draw_list->AddRect(rect_a, rect_b, border_col, 0.0f, ImDrawFlags_None, globals::gui_scale);
+            draw_list->AddRectFilled(rect_a, rect_b, rect_col, 0.0f, ImDrawFlags_None);
+            draw_list->AddText(font, 0.5f * ImGui::GetFontSize(), text_pos, text_col, usernames[i].c_str(),
+                usernames[i].c_str() + usernames[i].size());
+        }
+
+        ImGui::PopFont();
+        ImGui::End();
+    }
+}
diff --git a/src/game/client/gui/scoreboard.hh b/src/game/client/gui/scoreboard.hh
new file mode 100644
index 0000000..320e185
--- /dev/null
+++ b/src/game/client/gui/scoreboard.hh
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace gui::scoreboard
+{
+void init(void);
+void layout(void);
+} // namespace gui::scoreboard
diff --git a/src/game/client/gui/settings.cc b/src/game/client/gui/settings.cc
new file mode 100644
index 0000000..70852b2
--- /dev/null
+++ b/src/game/client/gui/settings.cc
@@ -0,0 +1,1069 @@
+#include "client/pch.hh"
+
+#include "client/gui/settings.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+#include "core/config/string.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "client/config/gamepad_axis.hh"
+#include "client/config/gamepad_button.hh"
+#include "client/config/keybind.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/language.hh"
+
+#include "client/io/gamepad.hh"
+#include "client/io/glfw.hh"
+
+#include "client/const.hh"
+#include "client/globals.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+constexpr static unsigned int NUM_LOCATIONS = static_cast<unsigned int>(settings_location::COUNT);
+
+enum class setting_type : unsigned int {
+    CHECKBOX = 0x0000U,        ///< config::Boolean
+    INPUT_INT = 0x0001U,       ///< config::Number<int>
+    INPUT_FLOAT = 0x0002U,     ///< config::Number<float>
+    INPUT_UINT = 0x0003U,      ///< config::Number<unsigned int>
+    INPUT_STRING = 0x0004U,    ///< config::String
+    SLIDER_INT = 0x0005U,      ///< config::Number<int>
+    SLIDER_FLOAT = 0x0006U,    ///< config::Number<float>
+    SLIDER_UINT = 0x0007U,     ///< config::Number<unsigned int>
+    STEPPER_INT = 0x0008U,     ///< config::Number<int>
+    STEPPER_UINT = 0x0009U,    ///< config::Number<unsigned int>
+    KEYBIND = 0x000AU,         ///< config::KeyBind
+    GAMEPAD_AXIS = 0x000BU,    ///< config::GamepadAxis
+    GAMEPAD_BUTTON = 0x000CU,  ///< config::GamepadButton
+    LANGUAGE_SELECT = 0x000DU, ///< config::String internally
+};
+
+class SettingValue {
+public:
+    virtual ~SettingValue(void) = default;
+    virtual void layout(void) const = 0;
+    void layout_tooltip(void) const;
+    void layout_label(void) const;
+
+public:
+    setting_type type;
+    std::string tooltip;
+    std::string title;
+    std::string name;
+    bool has_tooltip;
+    int priority;
+};
+
+class SettingValueWID : public SettingValue {
+public:
+    virtual ~SettingValueWID(void) = default;
+
+public:
+    std::string wid;
+};
+
+class SettingValue_CheckBox final : public SettingValue {
+public:
+    virtual ~SettingValue_CheckBox(void) = default;
+    virtual void layout(void) const override;
+    void refresh_wids(void);
+
+public:
+    config::Boolean* value;
+    std::string wids[2];
+};
+
+class SettingValue_InputInt final : public SettingValueWID {
+public:
+    virtual ~SettingValue_InputInt(void) = default;
+    virtual void layout(void) const override;
+
+public:
+    config::Int* value;
+};
+
+class SettingValue_InputFloat final : public SettingValueWID {
+public:
+    virtual ~SettingValue_InputFloat(void) = default;
+    virtual void layout(void) const override;
+
+public:
+    std::string format;
+    config::Float* value;
+};
+
+class SettingValue_InputUnsigned final : public SettingValueWID {
+public:
+    virtual ~SettingValue_InputUnsigned(void) = default;
+    virtual void layout(void) const override;
+
+public:
+    config::Unsigned* value;
+};
+
+class SettingValue_InputString final : public SettingValueWID {
+public:
+    virtual ~SettingValue_InputString(void) = default;
+    virtual void layout(void) const override;
+
+public:
+    config::String* value;
+    bool allow_whitespace;
+};
+
+class SettingValue_SliderInt final : public SettingValueWID {
+public:
+    virtual ~SettingValue_SliderInt(void) = default;
+    virtual void layout(void) const override;
+
+public:
+    config::Int* value;
+};
+
+class SettingValue_SliderFloat final : public SettingValueWID {
+public:
+    virtual ~SettingValue_SliderFloat(void) = default;
+    virtual void layout(void) const override;
+
+public:
+    std::string format;
+    config::Float* value;
+};
+
+class SettingValue_SliderUnsigned final : public SettingValueWID {
+public:
+    virtual ~SettingValue_SliderUnsigned(void) = default;
+    virtual void layout(void) const override;
+
+public:
+    config::Unsigned* value;
+};
+
+class SettingValue_StepperInt final : public SettingValue {
+public:
+    virtual ~SettingValue_StepperInt(void) = default;
+    virtual void layout(void) const override;
+    void refresh_wids(void);
+
+public:
+    std::vector<std::string> wids;
+    config::Int* value;
+};
+
+class SettingValue_StepperUnsigned final : public SettingValue {
+public:
+    virtual ~SettingValue_StepperUnsigned(void) = default;
+    virtual void layout(void) const override;
+    void refresh_wids(void);
+
+public:
+    std::vector<std::string> wids;
+    config::Unsigned* value;
+};
+
+class SettingValue_KeyBind final : public SettingValue {
+public:
+    virtual ~SettingValue_KeyBind(void) = default;
+    virtual void layout(void) const override;
+    void refresh_wids(void);
+
+public:
+    std::string wids[2];
+    config::KeyBind* value;
+};
+
+class SettingValue_GamepadAxis final : public SettingValue {
+public:
+    virtual ~SettingValue_GamepadAxis(void) = default;
+    virtual void layout(void) const override;
+    void refresh_wids(void);
+
+public:
+    std::string wids[2];
+    std::string wid_checkbox;
+    config::GamepadAxis* value;
+};
+
+class SettingValue_GamepadButton final : public SettingValue {
+public:
+    virtual ~SettingValue_GamepadButton(void) = default;
+    virtual void layout(void) const override;
+    void refresh_wids(void);
+
+public:
+    std::string wids[2];
+    config::GamepadButton* value;
+};
+
+class SettingValue_Language final : public SettingValueWID {
+public:
+    virtual ~SettingValue_Language(void) = default;
+    virtual void layout(void) const override;
+};
+
+static std::string str_checkbox_false;
+static std::string str_checkbox_true;
+
+static std::string str_tab_general;
+static std::string str_tab_input;
+static std::string str_tab_video;
+static std::string str_tab_sound;
+
+static std::string str_input_keyboard;
+static std::string str_input_gamepad;
+static std::string str_input_mouse;
+
+static std::string str_keyboard_movement;
+static std::string str_keyboard_gameplay;
+static std::string str_keyboard_misc;
+
+static std::string str_gamepad_movement;
+static std::string str_gamepad_gameplay;
+static std::string str_gamepad_misc;
+
+static std::string str_gamepad_axis_prefix;
+static std::string str_gamepad_button_prefix;
+static std::string str_gamepad_checkbox_tooltip;
+
+static std::string str_video_gui;
+
+static std::string str_sound_levels;
+
+static std::vector<SettingValue*> values_all;
+static std::vector<SettingValue*> values[NUM_LOCATIONS];
+
+void SettingValue::layout_tooltip(void) const
+{
+    if(has_tooltip) {
+        ImGui::SameLine();
+        ImGui::TextDisabled("[?]");
+
+        if(ImGui::BeginItemTooltip()) {
+            ImGui::PushTextWrapPos(ImGui::GetFontSize() * 16.0f);
+            ImGui::TextUnformatted(tooltip.c_str());
+            ImGui::PopTextWrapPos();
+            ImGui::EndTooltip();
+        }
+    }
+}
+
+void SettingValue::layout_label(void) const
+{
+    ImGui::SameLine();
+    ImGui::TextUnformatted(title.c_str());
+}
+
+void SettingValue_CheckBox::refresh_wids(void)
+{
+    wids[0] = std::format("{}###{}", str_checkbox_false, static_cast<void*>(value));
+    wids[1] = std::format("{}###{}", str_checkbox_true, static_cast<void*>(value));
+}
+
+void SettingValue_CheckBox::layout(void) const
+{
+    const auto& wid = value->get_value() ? wids[1] : wids[0];
+
+    if(ImGui::Button(wid.c_str(), ImVec2(ImGui::CalcItemWidth(), 0.0f))) {
+        value->set_value(!value->get_value());
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_InputInt::layout(void) const
+{
+    auto current_value = value->get_value();
+
+    if(ImGui::InputInt(wid.c_str(), &current_value)) {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_InputFloat::layout(void) const
+{
+    auto current_value = value->get_value();
+
+    if(ImGui::InputFloat(wid.c_str(), &current_value, 0.0f, 0.0f, format.c_str())) {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_InputUnsigned::layout(void) const
+{
+    auto current_value = static_cast<std::uint32_t>(value->get_value());
+
+    if(ImGui::InputScalar(wid.c_str(), ImGuiDataType_U32, &current_value)) {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_InputString::layout(void) const
+{
+    ImGuiInputTextFlags flags;
+    std::string current_value(value->get_value());
+
+    if(allow_whitespace) {
+        flags = ImGuiInputTextFlags_AllowTabInput;
+    }
+    else {
+        flags = 0;
+    }
+
+    if(ImGui::InputText(wid.c_str(), &current_value, flags)) {
+        value->set(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_SliderInt::layout(void) const
+{
+    auto current_value = value->get_value();
+
+    if(ImGui::SliderInt(wid.c_str(), &current_value, value->get_min_value(), value->get_max_value())) {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_SliderFloat::layout(void) const
+{
+    auto current_value = value->get_value();
+
+    if(ImGui::SliderFloat(wid.c_str(), &current_value, value->get_min_value(), value->get_max_value(), format.c_str())) {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_SliderUnsigned::layout(void) const
+{
+    auto current_value = static_cast<std::uint32_t>(value->get_value());
+    auto min_value = static_cast<std::uint32_t>(value->get_min_value());
+    auto max_value = static_cast<std::uint32_t>(value->get_max_value());
+
+    if(ImGui::SliderScalar(wid.c_str(), ImGuiDataType_U32, &current_value, &min_value, &max_value)) {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_StepperInt::layout(void) const
+{
+    auto current_value = value->get_value();
+    auto min_value = value->get_min_value();
+    auto max_value = value->get_max_value();
+
+    auto current_wid = current_value - min_value;
+
+    if(ImGui::Button(wids[current_wid].c_str(), ImVec2(ImGui::CalcItemWidth(), 0.0f))) {
+        current_value += 1;
+    }
+
+    if(current_value > max_value) {
+        value->set_value(min_value);
+    }
+    else {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_StepperInt::refresh_wids(void)
+{
+    for(std::size_t i = 0; i < wids.size(); ++i) {
+        auto key = std::format("settings.value.{}.{}", name, i);
+        wids[i] = std::format("{}###{}", gui::language::resolve(key.c_str()), static_cast<const void*>(value));
+    }
+}
+
+void SettingValue_StepperUnsigned::layout(void) const
+{
+    auto current_value = value->get_value();
+    auto min_value = value->get_min_value();
+    auto max_value = value->get_max_value();
+
+    auto current_wid = current_value - min_value;
+
+    if(ImGui::Button(wids[current_wid].c_str(), ImVec2(ImGui::CalcItemWidth(), 0.0f))) {
+        current_value += 1U;
+    }
+
+    if(current_value > max_value) {
+        value->set_value(min_value);
+    }
+    else {
+        value->set_value(current_value);
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+void SettingValue_StepperUnsigned::refresh_wids(void)
+{
+    for(std::size_t i = 0; i < wids.size(); ++i) {
+        auto key = std::format("settings.value.{}.{}", name, i);
+        wids[i] = std::format("{}###{}", gui::language::resolve(key.c_str()), static_cast<const void*>(value));
+    }
+}
+
+void SettingValue_KeyBind::layout(void) const
+{
+    const auto is_active = ((globals::gui_keybind_ptr == value) && !globals::gui_gamepad_axis_ptr && !globals::gui_gamepad_button_ptr);
+    const auto& wid = is_active ? wids[0] : wids[1];
+
+    if(ImGui::Button(wid.c_str(), ImVec2(ImGui::CalcItemWidth(), 0.0f))) {
+        auto& io = ImGui::GetIO();
+        io.ConfigFlags &= ~ImGuiConfigFlags_NavEnableKeyboard;
+        globals::gui_keybind_ptr = value;
+    }
+
+    layout_label();
+}
+
+void SettingValue_KeyBind::refresh_wids(void)
+{
+    wids[0] = std::format("...###{}", static_cast<const void*>(value));
+    wids[1] = std::format("{}###{}", value->get(), static_cast<const void*>(value));
+}
+
+void SettingValue_GamepadAxis::layout(void) const
+{
+    const auto is_active = ((globals::gui_gamepad_axis_ptr == value) && !globals::gui_keybind_ptr && !globals::gui_gamepad_button_ptr);
+    const auto& wid = is_active ? wids[0] : wids[1];
+    auto is_inverted = value->is_inverted();
+
+    if(ImGui::Button(wid.c_str(), ImVec2(ImGui::CalcItemWidth() - ImGui::GetFrameHeight() - ImGui::GetStyle().ItemSpacing.x, 0.0f))) {
+        auto& io = ImGui::GetIO();
+        io.ConfigFlags &= ~ImGuiConfigFlags_NavEnableKeyboard;
+        globals::gui_gamepad_axis_ptr = value;
+    }
+
+    ImGui::SameLine();
+
+    if(ImGui::Checkbox(wid_checkbox.c_str(), &is_inverted)) {
+        value->set_inverted(is_inverted);
+    }
+
+    if(ImGui::BeginItemTooltip()) {
+        ImGui::PushTextWrapPos(ImGui::GetFontSize() * 16.0f);
+        ImGui::TextUnformatted(str_gamepad_checkbox_tooltip.c_str());
+        ImGui::PopTextWrapPos();
+        ImGui::EndTooltip();
+    }
+
+    layout_label();
+}
+
+void SettingValue_GamepadAxis::refresh_wids(void)
+{
+    wids[0] = std::format("...###{}", static_cast<const void*>(value));
+    wids[1] = std::format("{}###{}", value->get_name(), static_cast<const void*>(value));
+    wid_checkbox = std::format("###CHECKBOX_{}", static_cast<const void*>(value));
+}
+
+void SettingValue_GamepadButton::layout(void) const
+{
+    const auto is_active = ((globals::gui_gamepad_button_ptr == value) && !globals::gui_keybind_ptr && !globals::gui_gamepad_axis_ptr);
+    const auto& wid = is_active ? wids[0] : wids[1];
+
+    if(ImGui::Button(wid.c_str(), ImVec2(ImGui::CalcItemWidth(), 0.0f))) {
+        auto& io = ImGui::GetIO();
+        io.ConfigFlags &= ~ImGuiConfigFlags_NavEnableKeyboard;
+        globals::gui_gamepad_button_ptr = value;
+    }
+
+    layout_label();
+}
+
+void SettingValue_GamepadButton::refresh_wids(void)
+{
+    wids[0] = std::format("...###{}", static_cast<const void*>(value));
+    wids[1] = std::format("{}###{}", value->get(), static_cast<const void*>(value));
+}
+
+void SettingValue_Language::layout(void) const
+{
+    auto current_language = gui::language::get_current();
+
+    if(ImGui::BeginCombo(wid.c_str(), current_language->endonym.c_str())) {
+        for(auto it = gui::language::cbegin(); it != gui::language::cend(); ++it) {
+            if(ImGui::Selectable(it->display.c_str(), it == current_language)) {
+                gui::language::set(it);
+                continue;
+            }
+        }
+
+        ImGui::EndCombo();
+    }
+
+    layout_label();
+    layout_tooltip();
+}
+
+static void refresh_input_wids(void)
+{
+    for(SettingValue* value : values_all) {
+        if(value->type == setting_type::KEYBIND) {
+            auto keybind = static_cast<SettingValue_KeyBind*>(value);
+            keybind->refresh_wids();
+            continue;
+        }
+
+        if(value->type == setting_type::GAMEPAD_AXIS) {
+            auto gamepad_axis = static_cast<SettingValue_GamepadAxis*>(value);
+            gamepad_axis->refresh_wids();
+            continue;
+        }
+
+        if(value->type == setting_type::GAMEPAD_BUTTON) {
+            auto gamepad_button = static_cast<SettingValue_GamepadButton*>(value);
+            gamepad_button->refresh_wids();
+        }
+    }
+}
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if((event.action == GLFW_PRESS) && (event.key != DEBUG_KEY)) {
+        if(globals::gui_keybind_ptr || globals::gui_gamepad_axis_ptr || globals::gui_gamepad_button_ptr) {
+            if(event.key == GLFW_KEY_ESCAPE) {
+                ImGuiIO& io = ImGui::GetIO();
+                io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+                globals::gui_keybind_ptr = nullptr;
+                globals::gui_gamepad_axis_ptr = nullptr;
+                globals::gui_gamepad_button_ptr = nullptr;
+
+                return;
+            }
+
+            ImGuiIO& io = ImGui::GetIO();
+            io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+            globals::gui_keybind_ptr->set_key(event.key);
+            globals::gui_keybind_ptr = nullptr;
+
+            refresh_input_wids();
+
+            return;
+        }
+
+        if((event.key == GLFW_KEY_ESCAPE) && (globals::gui_screen == GUI_SETTINGS)) {
+            globals::gui_screen = GUI_MAIN_MENU;
+            return;
+        }
+    }
+}
+
+static void on_gamepad_axis(const io::GamepadAxisEvent& event)
+{
+    if(globals::gui_gamepad_axis_ptr) {
+        auto& io = ImGui::GetIO();
+        io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+        globals::gui_gamepad_axis_ptr->set_axis(event.axis);
+        globals::gui_gamepad_axis_ptr = nullptr;
+
+        refresh_input_wids();
+
+        return;
+    }
+}
+
+static void on_gamepad_button(const io::GamepadButtonEvent& event)
+{
+    if(globals::gui_gamepad_button_ptr) {
+        auto& io = ImGui::GetIO();
+        io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+        globals::gui_gamepad_button_ptr->set_button(event.button);
+        globals::gui_gamepad_button_ptr = nullptr;
+
+        refresh_input_wids();
+
+        return;
+    }
+}
+
+static void on_language_set(const gui::LanguageSetEvent& event)
+{
+    str_checkbox_false = gui::language::resolve("settings.checkbox.false");
+    str_checkbox_true = gui::language::resolve("settings.checkbox.true");
+
+    str_tab_general = gui::language::resolve("settings.tab.general");
+    str_tab_input = gui::language::resolve("settings.tab.input");
+    str_tab_video = gui::language::resolve("settings.tab.video");
+    str_tab_sound = gui::language::resolve("settings.tab.sound");
+
+    str_input_keyboard = gui::language::resolve("settings.input.keyboard");
+    str_input_gamepad = gui::language::resolve("settings.input.gamepad");
+    str_input_mouse = gui::language::resolve("settings.input.mouse");
+
+    str_keyboard_movement = gui::language::resolve("settings.keyboard.movement");
+    str_keyboard_gameplay = gui::language::resolve("settings.keyboard.gameplay");
+    str_keyboard_misc = gui::language::resolve("settings.keyboard.misc");
+
+    str_gamepad_movement = gui::language::resolve("settings.gamepad.movement");
+    str_gamepad_gameplay = gui::language::resolve("settings.gamepad.gameplay");
+    str_gamepad_misc = gui::language::resolve("settings.gamepad.misc");
+
+    str_gamepad_axis_prefix = gui::language::resolve("settings.gamepad.axis");
+    str_gamepad_button_prefix = gui::language::resolve("settings.gamepad.button");
+    str_gamepad_checkbox_tooltip = gui::language::resolve("settings.gamepad.checkbox_tooltip");
+
+    str_video_gui = gui::language::resolve("settings.video.gui");
+
+    str_sound_levels = gui::language::resolve("settings.sound.levels");
+
+    for(SettingValue* value : values_all) {
+        if(value->type == setting_type::CHECKBOX) {
+            auto checkbox = static_cast<SettingValue_CheckBox*>(value);
+            checkbox->refresh_wids();
+        }
+
+        if(value->type == setting_type::STEPPER_INT) {
+            auto stepper = static_cast<SettingValue_StepperInt*>(value);
+            stepper->refresh_wids();
+        }
+
+        if(value->type == setting_type::STEPPER_UINT) {
+            auto stepper = static_cast<SettingValue_StepperUnsigned*>(value);
+            stepper->refresh_wids();
+        }
+
+        value->title = gui::language::resolve(std::format("settings.value.{}", value->name).c_str());
+
+        if(value->has_tooltip) {
+            value->tooltip = gui::language::resolve(std::format("settings.tooltip.{}", value->name).c_str());
+        }
+    }
+}
+
+static void layout_values(settings_location location)
+{
+    ImGui::PushItemWidth(ImGui::CalcItemWidth() * 0.70f);
+
+    for(const SettingValue* value : values[static_cast<unsigned int>(location)]) {
+        value->layout();
+    }
+
+    ImGui::PopItemWidth();
+}
+
+static void layout_general(void)
+{
+    if(ImGui::BeginChild("###settings.general.child")) {
+        layout_values(settings_location::GENERAL);
+    }
+
+    ImGui::EndChild();
+}
+
+static void layout_input_keyboard(void)
+{
+    if(ImGui::BeginChild("###settings.input.keyboard.child")) {
+        ImGui::SeparatorText(str_keyboard_movement.c_str());
+        layout_values(settings_location::KEYBOARD_MOVEMENT);
+        ImGui::SeparatorText(str_keyboard_gameplay.c_str());
+        layout_values(settings_location::KEYBOARD_GAMEPLAY);
+        ImGui::SeparatorText(str_keyboard_misc.c_str());
+        layout_values(settings_location::KEYBOARD_MISC);
+    }
+
+    ImGui::EndChild();
+}
+
+static void layout_input_gamepad(void)
+{
+    if(ImGui::BeginChild("###settings.input.gamepad.child")) {
+        layout_values(settings_location::GAMEPAD);
+        ImGui::SeparatorText(str_gamepad_movement.c_str());
+        layout_values(settings_location::GAMEPAD_MOVEMENT);
+        ImGui::SeparatorText(str_gamepad_gameplay.c_str());
+        layout_values(settings_location::GAMEPAD_GAMEPLAY);
+        ImGui::SeparatorText(str_gamepad_misc.c_str());
+        layout_values(settings_location::GAMEPAD_MISC);
+    }
+
+    ImGui::EndChild();
+}
+
+static void layout_input_mouse(void)
+{
+    if(ImGui::BeginChild("###settings.input.mouse.child")) {
+        layout_values(settings_location::MOUSE);
+    }
+
+    ImGui::EndChild();
+}
+
+static void layout_input(void)
+{
+    if(ImGui::BeginTabBar("###settings.input.tabs", ImGuiTabBarFlags_FittingPolicyResizeDown)) {
+        if(ImGui::BeginTabItem(str_input_keyboard.c_str())) {
+            layout_input_keyboard();
+            ImGui::EndTabItem();
+        }
+
+        if(io::gamepad::available) {
+            if(ImGui::BeginTabItem(str_input_gamepad.c_str())) {
+                globals::gui_keybind_ptr = nullptr;
+                layout_input_gamepad();
+                ImGui::EndTabItem();
+            }
+        }
+
+        if(ImGui::BeginTabItem(str_input_mouse.c_str())) {
+            globals::gui_keybind_ptr = nullptr;
+            layout_input_mouse();
+            ImGui::EndTabItem();
+        }
+
+        ImGui::EndTabBar();
+    }
+}
+
+static void layout_video(void)
+{
+    if(ImGui::BeginChild("###settings.video.child")) {
+        layout_values(settings_location::VIDEO);
+        ImGui::SeparatorText(str_video_gui.c_str());
+        layout_values(settings_location::VIDEO_GUI);
+    }
+
+    ImGui::EndChild();
+}
+
+static void layout_sound(void)
+{
+    if(ImGui::BeginChild("###settings.sound.child")) {
+        layout_values(settings_location::SOUND);
+        ImGui::SeparatorText(str_sound_levels.c_str());
+        layout_values(settings_location::SOUND_LEVELS);
+    }
+
+    ImGui::EndChild();
+}
+
+void settings::init(void)
+{
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+    globals::dispatcher.sink<io::GamepadAxisEvent>().connect<&on_gamepad_axis>();
+    globals::dispatcher.sink<io::GamepadButtonEvent>().connect<&on_gamepad_button>();
+    globals::dispatcher.sink<gui::LanguageSetEvent>().connect<&on_language_set>();
+}
+
+void settings::init_late(void)
+{
+    for(std::size_t i = 0; i < NUM_LOCATIONS; ++i) {
+        std::sort(values[i].begin(), values[i].end(), [](const SettingValue* a, const SettingValue* b) {
+            return a->priority < b->priority;
+        });
+    }
+
+    refresh_input_wids();
+}
+
+void settings::shutdown(void)
+{
+    for(const SettingValue* value : values_all)
+        delete value;
+    for(std::size_t i = 0; i < NUM_LOCATIONS; values[i++].clear())
+        ;
+    values_all.clear();
+}
+
+void settings::layout(void)
+{
+    const ImGuiViewport* viewport = ImGui::GetMainViewport();
+    const ImVec2 window_start = ImVec2(viewport->Size.x * 0.05f, viewport->Size.y * 0.05f);
+    const ImVec2 window_size = ImVec2(viewport->Size.x * 0.90f, viewport->Size.y * 0.90f);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###settings", nullptr, WINDOW_FLAGS)) {
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(3.0f * globals::gui_scale, 3.0f * globals::gui_scale));
+
+        if(ImGui::BeginTabBar("###settings.tabs", ImGuiTabBarFlags_FittingPolicyResizeDown)) {
+            if(ImGui::TabItemButton("<<")) {
+                globals::gui_screen = GUI_MAIN_MENU;
+                globals::gui_keybind_ptr = nullptr;
+            }
+
+            if(ImGui::BeginTabItem(str_tab_general.c_str())) {
+                globals::gui_keybind_ptr = nullptr;
+                layout_general();
+                ImGui::EndTabItem();
+            }
+
+            if(ImGui::BeginTabItem(str_tab_input.c_str())) {
+                layout_input();
+                ImGui::EndTabItem();
+            }
+
+            if(ImGui::BeginTabItem(str_tab_video.c_str())) {
+                globals::gui_keybind_ptr = nullptr;
+                layout_video();
+                ImGui::EndTabItem();
+            }
+
+            if(globals::sound_ctx && globals::sound_dev) {
+                if(ImGui::BeginTabItem(str_tab_sound.c_str())) {
+                    globals::gui_keybind_ptr = nullptr;
+                    layout_sound();
+                    ImGui::EndTabItem();
+                }
+            }
+
+            ImGui::EndTabBar();
+        }
+
+        ImGui::PopStyleVar();
+    }
+
+    ImGui::End();
+}
+
+void settings::add_checkbox(int priority, config::Boolean& value, settings_location location, std::string_view name, bool tooltip)
+{
+    auto setting_value = new SettingValue_CheckBox;
+    setting_value->type = setting_type::CHECKBOX;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->refresh_wids();
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_input(int priority, config::Int& value, settings_location location, std::string_view name, bool tooltip)
+{
+    auto setting_value = new SettingValue_InputInt;
+    setting_value->type = setting_type::INPUT_INT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value->value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_input(int priority, config::Float& value, settings_location location, std::string_view name, bool tooltip,
+    std::string_view fmt)
+{
+    auto setting_value = new SettingValue_InputFloat;
+    setting_value->type = setting_type::INPUT_FLOAT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->format = fmt;
+    setting_value->name = name;
+
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value->value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_input(int priority, config::Unsigned& value, settings_location location, std::string_view name, bool tooltip)
+{
+    auto setting_value = new SettingValue_InputUnsigned;
+    setting_value->type = setting_type::INPUT_UINT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value->value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_input(int priority, config::String& value, settings_location location, std::string_view name, bool tooltip,
+    bool allow_whitespace)
+{
+    auto setting_value = new SettingValue_InputString;
+    setting_value->type = setting_type::INPUT_STRING;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->allow_whitespace = allow_whitespace;
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value->value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_slider(int priority, config::Int& value, settings_location location, std::string_view name, bool tooltip)
+{
+    auto setting_value = new SettingValue_SliderInt;
+    setting_value->type = setting_type::SLIDER_INT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value->value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_slider(int priority, config::Float& value, settings_location location, std::string_view name, bool tooltip,
+    std::string_view fmt)
+{
+    auto setting_value = new SettingValue_SliderFloat;
+    setting_value->type = setting_type::SLIDER_FLOAT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->format = fmt;
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value->value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_slider(int priority, config::Unsigned& value, settings_location location, std::string_view name, bool tooltip)
+{
+    auto setting_value = new SettingValue_SliderUnsigned;
+    setting_value->type = setting_type::SLIDER_UINT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value->value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_stepper(int priority, config::Int& value, settings_location location, std::string_view name, bool tooltip)
+{
+    auto setting_value = new SettingValue_StepperInt;
+    setting_value->type = setting_type::STEPPER_INT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->wids.resize(value.get_max_value() - value.get_min_value() + 1);
+    setting_value->refresh_wids();
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_stepper(int priority, config::Unsigned& value, settings_location location, std::string_view name, bool tooltip)
+{
+    auto setting_value = new SettingValue_StepperUnsigned;
+    setting_value->type = setting_type::STEPPER_UINT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = tooltip;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->wids.resize(value.get_max_value() - value.get_min_value() + 1);
+    setting_value->refresh_wids();
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_keybind(int priority, config::KeyBind& value, settings_location location, std::string_view name)
+{
+    auto setting_value = new SettingValue_KeyBind;
+    setting_value->type = setting_type::KEYBIND;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = false;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->refresh_wids();
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_gamepad_axis(int priority, config::GamepadAxis& value, settings_location location, std::string_view name)
+{
+    auto setting_value = new SettingValue_GamepadAxis;
+    setting_value->type = setting_type::GAMEPAD_AXIS;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = false;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->refresh_wids();
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_gamepad_button(int priority, config::GamepadButton& value, settings_location location, std::string_view name)
+{
+    auto setting_value = new SettingValue_GamepadButton;
+    setting_value->type = setting_type::GAMEPAD_BUTTON;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = false;
+    setting_value->value = &value;
+    setting_value->name = name;
+
+    setting_value->refresh_wids();
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
+
+void settings::add_language_select(int priority, settings_location location, std::string_view name)
+{
+    auto setting_value = new SettingValue_Language;
+    setting_value->type = setting_type::LANGUAGE_SELECT;
+    setting_value->priority = priority;
+    setting_value->has_tooltip = false;
+    setting_value->name = name;
+
+    setting_value->wid = std::format("###{}", static_cast<const void*>(setting_value));
+
+    values[static_cast<unsigned int>(location)].push_back(setting_value);
+    values_all.push_back(setting_value);
+}
diff --git a/src/game/client/gui/settings.hh b/src/game/client/gui/settings.hh
new file mode 100644
index 0000000..efb8ca4
--- /dev/null
+++ b/src/game/client/gui/settings.hh
@@ -0,0 +1,90 @@
+#pragma once
+
+namespace config
+{
+class Boolean;
+class String;
+} // namespace config
+
+namespace config
+{
+class Int;
+class Float;
+class Unsigned;
+} // namespace config
+
+namespace config
+{
+class KeyBind;
+class GamepadAxis;
+class GamepadButton;
+} // namespace config
+
+enum class settings_location : unsigned int {
+    GENERAL = 0x0000U,
+    KEYBOARD_MOVEMENT = 0x0001U,
+    KEYBOARD_GAMEPLAY = 0x0002U,
+    KEYBOARD_MISC = 0x0003U,
+    GAMEPAD = 0x0004U,
+    GAMEPAD_MOVEMENT = 0x0005U,
+    GAMEPAD_GAMEPLAY = 0x0006U,
+    GAMEPAD_MISC = 0x0007U,
+    MOUSE = 0x0008U,
+    VIDEO = 0x0009U,
+    VIDEO_GUI = 0x000AU,
+    SOUND = 0x000BU,
+    SOUND_LEVELS = 0x000CU,
+    COUNT = 0x000DU,
+};
+
+namespace settings
+{
+void init(void);
+void init_late(void);
+void shutdown(void);
+void layout(void);
+} // namespace settings
+
+namespace settings
+{
+void add_checkbox(int priority, config::Boolean& value, settings_location location, std::string_view name, bool tooltip);
+} // namespace settings
+
+namespace settings
+{
+void add_input(int priority, config::Int& value, settings_location location, std::string_view name, bool tooltip);
+void add_input(int priority, config::Float& value, settings_location location, std::string_view name, bool tooltip,
+    std::string_view fmt = "%.3f");
+void add_input(int priority, config::Unsigned& value, settings_location location, std::string_view name, bool tooltip);
+void add_input(int priority, config::String& value, settings_location location, std::string_view name, bool tooltip, bool allow_whitespace);
+} // namespace settings
+
+namespace settings
+{
+void add_slider(int priority, config::Int& value, settings_location location, std::string_view name, bool tooltip);
+void add_slider(int priority, config::Float& value, settings_location location, std::string_view name, bool tooltip,
+    std::string_view format = "%.3f");
+void add_slider(int priority, config::Unsigned& value, settings_location location, std::string_view name, bool tooltip);
+} // namespace settings
+
+namespace settings
+{
+void add_stepper(int priority, config::Int& value, settings_location location, std::string_view name, bool tooltip);
+void add_stepper(int priority, config::Unsigned& value, settings_location location, std::string_view name, bool tooltip);
+} // namespace settings
+
+namespace settings
+{
+void add_keybind(int priority, config::KeyBind& value, settings_location location, std::string_view name);
+} // namespace settings
+
+namespace settings
+{
+void add_gamepad_axis(int priority, config::GamepadAxis& value, settings_location location, std::string_view name);
+void add_gamepad_button(int priority, config::GamepadButton& value, settings_location location, std::string_view name);
+} // namespace settings
+
+namespace settings
+{
+void add_language_select(int priority, settings_location location, std::string_view name);
+} // namespace settings
diff --git a/src/game/client/gui/splash.cc b/src/game/client/gui/splash.cc
new file mode 100644
index 0000000..fab3ad8
--- /dev/null
+++ b/src/game/client/gui/splash.cc
@@ -0,0 +1,177 @@
+#include "client/pch.hh"
+
+#include "client/gui/splash.hh"
+
+#include "core/io/cmdline.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "core/resource/resource.hh"
+
+#include "core/utils/epoch.hh"
+
+#include "client/gui/gui_screen.hh"
+#include "client/gui/language.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "client/globals.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+
+constexpr static int SPLASH_COUNT = 4;
+constexpr static std::size_t DELAY_MICROSECONDS = 2000000;
+constexpr static std::string_view SPLASH_PATH = "textures/gui/client_splash.png";
+
+static resource_ptr<TextureGUI> texture;
+static float texture_aspect;
+static float texture_alpha;
+
+static std::uint64_t end_time;
+static std::string current_text;
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    end_time = UINT64_C(0);
+}
+
+static void on_glfw_mouse_button(const io::GlfwMouseButtonEvent& event)
+{
+    end_time = UINT64_C(0);
+}
+
+static void on_glfw_scroll(const io::GlfwScrollEvent& event)
+{
+    end_time = UINT64_C(0);
+}
+
+void gui::client_splash::init(void)
+{
+    if(io::cmdline::contains("nosplash")) {
+        texture = nullptr;
+        texture_aspect = 0.0f;
+        texture_alpha = 0.0f;
+        return;
+    }
+
+    std::uniform_int_distribution<int> dist(0, SPLASH_COUNT - 1);
+
+    texture = resource::load<TextureGUI>(SPLASH_PATH, TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T);
+    texture_aspect = 0.0f;
+    texture_alpha = 0.0f;
+
+    if(texture) {
+        if(texture->size.x > texture->size.y) {
+            texture_aspect = static_cast<float>(texture->size.x) / static_cast<float>(texture->size.y);
+        }
+        else {
+            texture_aspect = static_cast<float>(texture->size.y) / static_cast<float>(texture->size.x);
+        }
+
+        texture_alpha = 1.0f;
+    }
+}
+
+void gui::client_splash::init_late(void)
+{
+    if(!texture) {
+        // We don't have to waste time
+        // rendering the missing client_splash texture
+        return;
+    }
+
+    end_time = utils::unix_microseconds() + DELAY_MICROSECONDS;
+
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+    globals::dispatcher.sink<io::GlfwMouseButtonEvent>().connect<&on_glfw_mouse_button>();
+    globals::dispatcher.sink<io::GlfwScrollEvent>().connect<&on_glfw_scroll>();
+
+    current_text = gui::language::resolve("splash.skip_prompt");
+
+    while(!glfwWindowShouldClose(globals::window)) {
+        const std::uint64_t curtime = utils::unix_microseconds();
+        const std::uint64_t remains = end_time - curtime;
+
+        if(curtime >= end_time) {
+            break;
+        }
+
+        texture_alpha = glm::smoothstep(0.25f, 0.6f, static_cast<float>(remains) / static_cast<float>(DELAY_MICROSECONDS));
+
+        gui::client_splash::render();
+    }
+
+    globals::dispatcher.sink<io::GlfwKeyEvent>().disconnect<&on_glfw_key>();
+    globals::dispatcher.sink<io::GlfwMouseButtonEvent>().disconnect<&on_glfw_mouse_button>();
+    globals::dispatcher.sink<io::GlfwScrollEvent>().disconnect<&on_glfw_scroll>();
+
+    texture = nullptr;
+    texture_aspect = 0.0f;
+    texture_alpha = 0.0f;
+    end_time = UINT64_C(0);
+}
+
+void gui::client_splash::render(void)
+{
+    if(!texture) {
+        // We don't have to waste time
+        // rendering the missing client_splash texture
+        return;
+    }
+
+    // The client_splash is rendered outside the main
+    // render loop, so we have to manually begin
+    // and render both window and ImGui frames
+    ImGui_ImplOpenGL3_NewFrame();
+    ImGui_ImplGlfw_NewFrame();
+    ImGui::NewFrame();
+
+    glDisable(GL_DEPTH_TEST);
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
+    glViewport(0, 0, globals::width, globals::height);
+
+    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+    glClear(GL_COLOR_BUFFER_BIT);
+
+    auto viewport = ImGui::GetMainViewport();
+    auto window_start = ImVec2(0.0f, 0.0f);
+    auto window_size = ImVec2(viewport->Size.x, viewport->Size.y);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###client_splash", nullptr, WINDOW_FLAGS)) {
+        const float image_width = 0.60f * viewport->Size.x;
+        const float image_height = image_width / texture_aspect;
+        const ImVec2 image_size = ImVec2(image_width, image_height);
+
+        const float image_x = 0.5f * (viewport->Size.x - image_width);
+        const float image_y = 0.5f * (viewport->Size.y - image_height);
+        const ImVec2 image_pos = ImVec2(image_x, image_y);
+
+        if(!current_text.empty()) {
+            ImGui::PushFont(globals::font_unscii8, 16.0f);
+            ImGui::SetCursorPos(ImVec2(16.0f, 16.0f));
+            ImGui::TextDisabled("%s", current_text.c_str());
+            ImGui::PopFont();
+        }
+
+        const ImVec2 uv_a = ImVec2(0.0f, 0.0f);
+        const ImVec2 uv_b = ImVec2(1.0f, 1.0f);
+        const ImVec4 tint = ImVec4(1.0f, 1.0f, 1.0f, texture_alpha);
+
+        ImGui::SetCursorPos(image_pos);
+        ImGui::ImageWithBg(texture->handle, image_size, uv_a, uv_b, ImVec4(0.0f, 0.0f, 0.0f, 0.0f), tint);
+    }
+
+    ImGui::End();
+
+    ImGui::Render();
+    ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+    glfwSwapBuffers(globals::window);
+
+    glfwPollEvents();
+}
diff --git a/src/game/client/gui/splash.hh b/src/game/client/gui/splash.hh
new file mode 100644
index 0000000..3ce63e4
--- /dev/null
+++ b/src/game/client/gui/splash.hh
@@ -0,0 +1,8 @@
+#pragma once
+
+namespace gui::client_splash
+{
+void init(void);
+void init_late(void);
+void render(void);
+} // namespace gui::client_splash
diff --git a/src/game/client/gui/status_lines.cc b/src/game/client/gui/status_lines.cc
new file mode 100644
index 0000000..74d0dbe
--- /dev/null
+++ b/src/game/client/gui/status_lines.cc
@@ -0,0 +1,84 @@
+#include "client/pch.hh"
+
+#include "client/gui/status_lines.hh"
+
+#include "client/gui/imdraw_ext.hh"
+
+#include "client/globals.hh"
+
+static float line_offsets[gui::STATUS_COUNT];
+static ImFont* line_fonts[gui::STATUS_COUNT];
+static float line_sizes[gui::STATUS_COUNT];
+
+static ImVec4 line_text_colors[gui::STATUS_COUNT];
+static ImVec4 line_shadow_colors[gui::STATUS_COUNT];
+static std::string line_strings[gui::STATUS_COUNT];
+static std::uint64_t line_spawns[gui::STATUS_COUNT];
+static float line_fadeouts[gui::STATUS_COUNT];
+
+void gui::status_lines::init(void)
+{
+    for(unsigned int i = 0U; i < STATUS_COUNT; ++i) {
+        line_text_colors[i] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+        line_shadow_colors[i] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+        line_strings[i] = std::string();
+        line_spawns[i] = UINT64_MAX;
+        line_fadeouts[i] = 0.0f;
+    }
+}
+
+void gui::status_lines::init_late(void)
+{
+    line_offsets[STATUS_DEBUG] = 64.0f;
+    line_offsets[STATUS_HOTBAR] = 40.0f;
+}
+
+void gui::status_lines::layout(void)
+{
+    line_fonts[STATUS_DEBUG] = globals::font_unscii8;
+    line_sizes[STATUS_DEBUG] = 4.0f;
+
+    line_fonts[STATUS_HOTBAR] = globals::font_unscii16;
+    line_sizes[STATUS_HOTBAR] = 8.0f;
+
+    auto viewport = ImGui::GetMainViewport();
+    auto draw_list = ImGui::GetForegroundDrawList();
+
+    for(unsigned int i = 0U; i < STATUS_COUNT; ++i) {
+        auto offset = line_offsets[i] * globals::gui_scale;
+        auto& text = line_strings[i];
+        auto* font = line_fonts[i];
+
+        auto size = font->CalcTextSizeA(line_sizes[i] * globals::gui_scale, FLT_MAX, 0.0f, text.c_str(), text.c_str() + text.size());
+        auto pos = ImVec2(0.5f * (viewport->Size.x - size.x), viewport->Size.y - offset);
+
+        auto spawn = line_spawns[i];
+        auto fadeout = line_fadeouts[i];
+        auto alpha = std::exp(-1.0f * std::pow(1.0e-6f * static_cast<float>(globals::curtime - spawn) / fadeout, 10.0f));
+
+        auto& color = line_text_colors[i];
+        auto& shadow = line_shadow_colors[i];
+        auto color_U32 = ImGui::GetColorU32(ImVec4(color.x, color.y, color.z, color.w * alpha));
+        auto shadow_U32 = ImGui::GetColorU32(ImVec4(shadow.x, shadow.y, shadow.z, color.w * alpha));
+
+        gui::imdraw_ext::text_shadow(text, pos, color_U32, shadow_U32, font, draw_list, line_sizes[i]);
+    }
+}
+
+void gui::status_lines::set(unsigned int line, std::string_view text, const ImVec4& color, float fadeout)
+{
+    line_text_colors[line] = ImVec4(color.x, color.y, color.z, color.w);
+    line_shadow_colors[line] = ImVec4(color.x * 0.1f, color.y * 0.1f, color.z * 0.1f, color.w);
+    line_strings[line] = text;
+    line_spawns[line] = globals::curtime;
+    line_fadeouts[line] = fadeout;
+}
+
+void gui::status_lines::unset(unsigned int line)
+{
+    line_text_colors[line] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+    line_shadow_colors[line] = ImVec4(0.0f, 0.0f, 0.0f, 0.0f);
+    line_strings[line] = std::string();
+    line_spawns[line] = UINT64_C(0);
+    line_fadeouts[line] = 0.0f;
+}
diff --git a/src/game/client/gui/status_lines.hh b/src/game/client/gui/status_lines.hh
new file mode 100644
index 0000000..98cbde1
--- /dev/null
+++ b/src/game/client/gui/status_lines.hh
@@ -0,0 +1,21 @@
+#pragma once
+
+namespace gui
+{
+constexpr static unsigned int STATUS_DEBUG = 0x0000;  // generic debug line
+constexpr static unsigned int STATUS_HOTBAR = 0x0001; // hotbar item line
+constexpr static unsigned int STATUS_COUNT = 0x0002;
+} // namespace gui
+
+namespace gui::status_lines
+{
+void init(void);
+void init_late(void);
+void layout(void);
+} // namespace gui::status_lines
+
+namespace gui::status_lines
+{
+void set(unsigned int line, std::string_view text, const ImVec4& color, float fadeout);
+void unset(unsigned int line);
+} // namespace gui::status_lines
diff --git a/src/game/client/gui/window_title.cc b/src/game/client/gui/window_title.cc
new file mode 100644
index 0000000..787a7fa
--- /dev/null
+++ b/src/game/client/gui/window_title.cc
@@ -0,0 +1,14 @@
+#include "client/pch.hh"
+
+#include "client/gui/window_title.hh"
+
+#include "core/version.hh"
+
+#include "shared/splash.hh"
+
+#include "client/globals.hh"
+
+void gui::window_title::update(void)
+{
+    glfwSetWindowTitle(globals::window, std::format("Voxelius {}: {}", version::triplet, splash::get()).c_str());
+}
diff --git a/src/game/client/gui/window_title.hh b/src/game/client/gui/window_title.hh
new file mode 100644
index 0000000..af1ab7c
--- /dev/null
+++ b/src/game/client/gui/window_title.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace gui::window_title
+{
+void update(void);
+} // namespace gui::window_title
diff --git a/src/game/client/io/CMakeLists.txt b/src/game/client/io/CMakeLists.txt
new file mode 100644
index 0000000..82bc422
--- /dev/null
+++ b/src/game/client/io/CMakeLists.txt
@@ -0,0 +1,4 @@
+target_sources(vclient PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/gamepad.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/gamepad.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/glfw.hh")
diff --git a/src/game/client/io/gamepad.cc b/src/game/client/io/gamepad.cc
new file mode 100644
index 0000000..3661769
--- /dev/null
+++ b/src/game/client/io/gamepad.cc
@@ -0,0 +1,183 @@
+#include "client/pch.hh"
+
+#include "client/io/gamepad.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+#include "core/io/cmdline.hh"
+#include "core/io/config_map.hh"
+#include "core/math/constexpr.hh"
+
+#include "client/gui/settings.hh"
+#include "client/io/glfw.hh"
+
+#include "client/globals.hh"
+#include "client/toggles.hh"
+
+constexpr static int INVALID_GAMEPAD_ID = INT_MAX;
+constexpr static std::size_t NUM_AXES = static_cast<std::size_t>(GLFW_GAMEPAD_AXIS_LAST + 1);
+constexpr static std::size_t NUM_BUTTONS = static_cast<std::size_t>(GLFW_GAMEPAD_BUTTON_LAST + 1);
+constexpr static float GAMEPAD_AXIS_EVENT_THRESHOLD = 0.5f;
+
+static int active_gamepad_id;
+
+bool io::gamepad::available = false;
+config::Float io::gamepad::deadzone(0.00f, 0.00f, 0.66f);
+config::Boolean io::gamepad::active(false);
+GLFWgamepadstate io::gamepad::state;
+GLFWgamepadstate io::gamepad::last_state;
+
+static void on_toggle_enable(const ToggleEnabledEvent& event)
+{
+    if(event.type == TOGGLE_USE_GAMEPAD) {
+        io::gamepad::active.set_value(true);
+        return;
+    }
+}
+
+static void on_toggle_disable(const ToggleDisabledEvent& event)
+{
+    if(event.type == TOGGLE_USE_GAMEPAD) {
+        io::gamepad::active.set_value(false);
+        return;
+    }
+}
+
+static void on_glfw_joystick_event(const io::GlfwJoystickEvent& event)
+{
+    if((event.event_type == GLFW_CONNECTED) && glfwJoystickIsGamepad(event.joystick_id) && (active_gamepad_id == INVALID_GAMEPAD_ID)) {
+        io::gamepad::available = true;
+
+        active_gamepad_id = event.joystick_id;
+
+        for(int i = 0; i < NUM_AXES; io::gamepad::last_state.axes[i++] = 0.0f) {
+            // empty
+        }
+
+        for(int i = 0; i < NUM_BUTTONS; io::gamepad::last_state.buttons[i++] = GLFW_RELEASE) {
+            // empty
+        }
+
+        spdlog::info("gamepad: detected gamepad: {}", glfwGetGamepadName(event.joystick_id));
+
+        return;
+    }
+
+    if((event.event_type == GLFW_DISCONNECTED) && (active_gamepad_id == event.joystick_id)) {
+        io::gamepad::available = false;
+
+        active_gamepad_id = INVALID_GAMEPAD_ID;
+
+        for(int i = 0; i < NUM_AXES; io::gamepad::last_state.axes[i++] = 0.0f) {
+            // empty
+        }
+
+        for(int i = 0; i < NUM_BUTTONS; io::gamepad::last_state.buttons[i++] = GLFW_RELEASE) {
+            // empty
+        }
+
+        spdlog::warn("gamepad: disconnected");
+
+        return;
+    }
+}
+
+void io::gamepad::init(void)
+{
+    io::gamepad::available = false;
+
+    active_gamepad_id = INVALID_GAMEPAD_ID;
+
+    globals::client_config.add_value("gamepad.deadzone", io::gamepad::deadzone);
+    globals::client_config.add_value("gamepad.active", io::gamepad::active);
+
+    settings::add_checkbox(0, io::gamepad::active, settings_location::GAMEPAD, "gamepad.active", true);
+    settings::add_slider(1, io::gamepad::deadzone, settings_location::GAMEPAD, "gamepad.deadzone", true, "%.03f");
+
+    auto mappings_path = io::cmdline::get_cstr("gpmap", "misc/gamecontrollerdb.txt");
+    auto mappings_file = PHYSFS_openRead(mappings_path);
+
+    if(mappings_file) {
+        spdlog::info("gamepad: using mappings from {}", mappings_path);
+        auto mappings_string = std::string(PHYSFS_fileLength(mappings_file), char(0x00));
+        PHYSFS_readBytes(mappings_file, mappings_string.data(), mappings_string.size());
+        glfwUpdateGamepadMappings(mappings_string.c_str());
+        PHYSFS_close(mappings_file);
+    }
+
+    for(int joystick = 0; joystick <= GLFW_JOYSTICK_LAST; joystick += 1) {
+        if(glfwJoystickIsGamepad(joystick)) {
+            io::gamepad::available = true;
+
+            active_gamepad_id = joystick;
+
+            for(int i = 0; i < NUM_AXES; io::gamepad::last_state.axes[i++] = 0.0f) {
+                // empty
+            }
+
+            for(int i = 0; i < NUM_BUTTONS; io::gamepad::last_state.buttons[i++] = GLFW_RELEASE) {
+                // empty
+            }
+
+            spdlog::info("gamepad: detected gamepad: {}", glfwGetGamepadName(joystick));
+
+            break;
+        }
+    }
+
+    for(int i = 0; i < NUM_AXES; io::gamepad::state.axes[i++] = 0.0f) {
+        // empty
+    }
+
+    for(int i = 0; i < NUM_BUTTONS; io::gamepad::state.buttons[i++] = GLFW_RELEASE) {
+        // empty
+    }
+
+    globals::dispatcher.sink<ToggleEnabledEvent>().connect<&on_toggle_enable>();
+    globals::dispatcher.sink<ToggleDisabledEvent>().connect<&on_toggle_disable>();
+    globals::dispatcher.sink<GlfwJoystickEvent>().connect<&on_glfw_joystick_event>();
+}
+
+void io::gamepad::update_late(void)
+{
+    if(active_gamepad_id == INVALID_GAMEPAD_ID) {
+        // No active gamepad found
+        return;
+    }
+
+    if(glfwGetGamepadState(active_gamepad_id, &io::gamepad::state)) {
+        for(int i = 0; i < NUM_AXES; ++i) {
+            if((glm::abs(io::gamepad::state.axes[i]) > GAMEPAD_AXIS_EVENT_THRESHOLD)
+                && (glm::abs(io::gamepad::last_state.axes[i]) <= GAMEPAD_AXIS_EVENT_THRESHOLD)) {
+                GamepadAxisEvent event;
+                event.action = GLFW_PRESS;
+                event.axis = i;
+                globals::dispatcher.enqueue(event);
+                continue;
+            }
+
+            if((glm::abs(io::gamepad::state.axes[i]) <= GAMEPAD_AXIS_EVENT_THRESHOLD)
+                && (glm::abs(io::gamepad::last_state.axes[i]) > GAMEPAD_AXIS_EVENT_THRESHOLD)) {
+                GamepadAxisEvent event;
+                event.action = GLFW_RELEASE;
+                event.axis = i;
+                globals::dispatcher.enqueue(event);
+                continue;
+            }
+        }
+
+        for(int i = 0; i < NUM_BUTTONS; ++i) {
+            if(io::gamepad::state.buttons[i] == io::gamepad::last_state.buttons[i]) {
+                // Nothing happens
+                continue;
+            }
+
+            GamepadButtonEvent event;
+            event.action = io::gamepad::state.buttons[i];
+            event.button = i;
+            globals::dispatcher.enqueue(event);
+        }
+    }
+
+    io::gamepad::last_state = io::gamepad::state;
+}
diff --git a/src/game/client/io/gamepad.hh b/src/game/client/io/gamepad.hh
new file mode 100644
index 0000000..9c56894
--- /dev/null
+++ b/src/game/client/io/gamepad.hh
@@ -0,0 +1,50 @@
+#pragma once
+
+namespace io
+{
+constexpr static int INVALID_GAMEPAD_AXIS = INT_MAX;
+constexpr static int INVALID_GAMEPAD_BUTTON = INT_MAX;
+} // namespace io
+
+namespace config
+{
+class Boolean;
+class Float;
+} // namespace config
+
+struct GLFWgamepadstate;
+
+namespace io::gamepad
+{
+extern bool available;
+extern config::Float deadzone;
+extern config::Boolean active;
+extern GLFWgamepadstate state;
+extern GLFWgamepadstate last_state;
+} // namespace io::gamepad
+
+namespace io::gamepad
+{
+void init(void);
+void update_late(void);
+} // namespace io::gamepad
+
+namespace io
+{
+// This simulates buttons using axes. When an axis
+// value exceeds 1.5 times the deadzone, the event is
+// queued with a GLFW_PRESS action, when it falls back
+// below the threshold, the event is queued with GLFW_RELEASE action
+struct GamepadAxisEvent final {
+    int action;
+    int axis;
+};
+
+// This smears GLFW event sugar over gamepad polling
+// system. Whenever it detects a state change, the event
+// is queued with an appropriate action
+struct GamepadButtonEvent final {
+    int action;
+    int button;
+};
+} // namespace io
diff --git a/src/game/client/io/glfw.hh b/src/game/client/io/glfw.hh
new file mode 100644
index 0000000..cd6d882
--- /dev/null
+++ b/src/game/client/io/glfw.hh
@@ -0,0 +1,36 @@
+#pragma once
+
+namespace io
+{
+struct GlfwCursorPosEvent final {
+    glm::fvec2 pos;
+};
+
+struct GlfwFramebufferSizeEvent final {
+    glm::ivec2 size;
+    float aspect;
+};
+
+struct GlfwJoystickEvent final {
+    int joystick_id;
+    int event_type;
+};
+
+struct GlfwKeyEvent final {
+    int key { GLFW_KEY_UNKNOWN };
+    int scancode;
+    int action;
+    int mods;
+};
+
+struct GlfwMouseButtonEvent final {
+    int button { GLFW_KEY_UNKNOWN };
+    int action;
+    int mods;
+};
+
+struct GlfwScrollEvent final {
+    float dx;
+    float dy;
+};
+} // namespace io
diff --git a/src/game/client/main.cc b/src/game/client/main.cc
new file mode 100644
index 0000000..c96d4a4
--- /dev/null
+++ b/src/game/client/main.cc
@@ -0,0 +1,449 @@
+#include "client/pch.hh"
+
+#include "core/io/cmdline.hh"
+#include "core/io/config_map.hh"
+
+#include "core/resource/image.hh"
+#include "core/resource/resource.hh"
+
+#include "core/utils/epoch.hh"
+
+#include "core/threading.hh"
+#include "core/version.hh"
+
+#include "shared/game.hh"
+#include "shared/splash.hh"
+
+#include "client/gui/window_title.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/resource/sound_effect.hh"
+#include "client/resource/texture_gui.hh"
+
+#include "client/const.hh"
+#include "client/game.hh"
+#include "client/globals.hh"
+
+#if defined(_WIN32)
+extern "C" __declspec(dllexport) unsigned long NvOptimusEnablement = 0x00000001;
+extern "C" __declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
+#endif
+
+static void on_glfw_error(int code, const char* message)
+{
+    spdlog::error("glfw: {}", message);
+}
+
+static void on_glfw_char(GLFWwindow* window, unsigned int codepoint)
+{
+    ImGui_ImplGlfw_CharCallback(window, codepoint);
+}
+
+static void on_glfw_cursor_enter(GLFWwindow* window, int entered)
+{
+    ImGui_ImplGlfw_CursorEnterCallback(window, entered);
+}
+
+static void on_glfw_cursor_pos(GLFWwindow* window, double xpos, double ypos)
+{
+    io::GlfwCursorPosEvent event;
+    event.pos.x = static_cast<float>(xpos);
+    event.pos.y = static_cast<float>(ypos);
+    globals::dispatcher.trigger(event);
+
+    ImGui_ImplGlfw_CursorPosCallback(window, xpos, ypos);
+}
+
+static void on_glfw_framebuffer_size(GLFWwindow* window, int width, int height)
+{
+    if(glfwGetWindowAttrib(window, GLFW_ICONIFIED)) {
+        // Don't do anything if the window was just
+        // iconified (minimized); as it turns out minimized
+        // windows on WIN32 seem to be forced into 0x0
+        return;
+    }
+
+    globals::width = width;
+    globals::height = height;
+    globals::aspect = static_cast<float>(width) / static_cast<float>(height);
+
+    io::GlfwFramebufferSizeEvent fb_event;
+    fb_event.size.x = globals::width;
+    fb_event.size.y = globals::height;
+    fb_event.aspect = globals::aspect;
+    globals::dispatcher.trigger(fb_event);
+}
+
+static void on_glfw_key(GLFWwindow* window, int key, int scancode, int action, int mods)
+{
+    io::GlfwKeyEvent event;
+    event.key = key;
+    event.scancode = scancode;
+    event.action = action;
+    event.mods = mods;
+    globals::dispatcher.trigger(event);
+
+    ImGui_ImplGlfw_KeyCallback(window, key, scancode, action, mods);
+}
+
+static void on_glfw_joystick(int joystick_id, int event_type)
+{
+    io::GlfwJoystickEvent event;
+    event.joystick_id = joystick_id;
+    event.event_type = event_type;
+    globals::dispatcher.trigger(event);
+}
+
+static void on_glfw_monitor_event(GLFWmonitor* monitor, int event)
+{
+    ImGui_ImplGlfw_MonitorCallback(monitor, event);
+}
+
+static void on_glfw_mouse_button(GLFWwindow* window, int button, int action, int mods)
+{
+    io::GlfwMouseButtonEvent event;
+    event.button = button;
+    event.action = action;
+    event.mods = mods;
+    globals::dispatcher.trigger(event);
+
+    ImGui_ImplGlfw_MouseButtonCallback(window, button, action, mods);
+}
+
+static void on_glfw_scroll(GLFWwindow* window, double dx, double dy)
+{
+    io::GlfwScrollEvent event;
+    event.dx = static_cast<float>(dx);
+    event.dy = static_cast<float>(dy);
+    globals::dispatcher.trigger(event);
+
+    ImGui_ImplGlfw_ScrollCallback(window, dx, dy);
+}
+
+static void on_glfw_window_focus(GLFWwindow* window, int focused)
+{
+    ImGui_ImplGlfw_WindowFocusCallback(window, focused);
+}
+
+static void GLAD_API_PTR on_opengl_message(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message,
+    const void* param)
+{
+    spdlog::info("opengl: {}", reinterpret_cast<const char*>(message));
+}
+
+static void on_termination_signal(int)
+{
+    spdlog::warn("client: received termination signal");
+    glfwSetWindowShouldClose(globals::window, true);
+}
+
+int main(int argc, char** argv)
+{
+    io::cmdline::create(argc, argv);
+
+#if defined(_WIN32)
+#if defined(NDEBUG)
+    if(GetConsoleWindow() && !io::cmdline::contains("debug")) {
+        // Hide the console window on release builds
+        // unless explicitly specified to preserve it instead
+        FreeConsole();
+    }
+#else
+    if(GetConsoleWindow() && io::cmdline::contains("nodebug")) {
+        // Hide the console window on debug builds when
+        // explicitly specified by the user to hide it
+        FreeConsole();
+    }
+#endif
+#endif
+
+    shared_game::init(argc, argv);
+
+    spdlog::info("Voxelius Client {}", version::full);
+
+    glfwSetErrorCallback(&on_glfw_error);
+
+#if defined(__unix__)
+    // Wayland constantly throws random bullshit at me
+    // when I'm dealing with pretty much anything cross-platform
+    // on pretty much any kind of UNIX and Linux distribution
+    glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_X11);
+#endif
+
+    if(!glfwInit()) {
+        spdlog::critical("glfw: init failed");
+        std::terminate();
+    }
+
+    glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_API);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+    glfwWindowHint(GLFW_SAMPLES, 0);
+
+    globals::window = glfwCreateWindow(DEFAULT_WIDTH, DEFAULT_HEIGHT, "Client", nullptr, nullptr);
+
+    if(!globals::window) {
+        spdlog::critical("glfw: failed to open a window");
+        std::terminate();
+    }
+
+    std::signal(SIGINT, &on_termination_signal);
+    std::signal(SIGTERM, &on_termination_signal);
+
+    glfwMakeContextCurrent(globals::window);
+    glfwSwapInterval(1);
+
+    if(!gladLoadGL(&glfwGetProcAddress)) {
+        spdlog::critical("glad: failed to load function pointers");
+        std::terminate();
+    }
+
+    if(GLAD_GL_KHR_debug) {
+        if(!io::cmdline::contains("nodebug")) {
+            glEnable(GL_DEBUG_OUTPUT);
+            glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
+            glDebugMessageCallback(&on_opengl_message, nullptr);
+
+            // NVIDIA drivers tend to spam quote-unquote "useful"
+            // information about buffer usage into the debug callback
+            static const std::uint32_t ignore_nvidia_131185 = 131185;
+            glDebugMessageControl(GL_DEBUG_SOURCE_API, GL_DEBUG_TYPE_OTHER, GL_DONT_CARE, 1, &ignore_nvidia_131185, GL_FALSE);
+        }
+        else {
+            spdlog::warn("glad: nodebug command line parameter found");
+            spdlog::warn("glad: OpenGL errors will not be logged");
+        }
+    }
+    else {
+        spdlog::warn("glad: KHR_debug extension not supported");
+        spdlog::warn("glad: OpenGL errors will not be logged");
+    }
+
+    spdlog::info("opengl: version: {}", reinterpret_cast<const char*>(glGetString(GL_VERSION)));
+    spdlog::info("opengl: renderer: {}", reinterpret_cast<const char*>(glGetString(GL_RENDERER)));
+
+    Image::register_resource();
+    TextureGUI::register_resource();
+    SoundEffect::register_resource();
+
+    glDisable(GL_MULTISAMPLE);
+
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGui::StyleColorsDark();
+    ImGui_ImplGlfw_InitForOpenGL(globals::window, false);
+    ImGui_ImplOpenGL3_Init(nullptr);
+
+    // The UI is scaled against a resolution defined by BASE_WIDTH and BASE_HEIGHT
+    // constants. However, UI scale of 1 doesn't look that good, so the window size is
+    // limited to a resolution that allows at least UI scale of 2 and is defined by MIN_WIDTH and MIN_HEIGHT.
+    glfwSetWindowSizeLimits(globals::window, MIN_WIDTH, MIN_HEIGHT, GLFW_DONT_CARE, GLFW_DONT_CARE);
+
+    glfwSetCharCallback(globals::window, &on_glfw_char);
+    glfwSetCursorEnterCallback(globals::window, &on_glfw_cursor_enter);
+    glfwSetCursorPosCallback(globals::window, &on_glfw_cursor_pos);
+    glfwSetFramebufferSizeCallback(globals::window, &on_glfw_framebuffer_size);
+    glfwSetKeyCallback(globals::window, &on_glfw_key);
+    glfwSetMouseButtonCallback(globals::window, &on_glfw_mouse_button);
+    glfwSetScrollCallback(globals::window, &on_glfw_scroll);
+    glfwSetWindowFocusCallback(globals::window, &on_glfw_window_focus);
+
+    glfwSetJoystickCallback(&on_glfw_joystick);
+    glfwSetMonitorCallback(&on_glfw_monitor_event);
+
+    if(auto image = resource::load<Image>("textures/gui/window_icon.png")) {
+        GLFWimage icon_image;
+        icon_image.width = image->size.x;
+        icon_image.height = image->size.y;
+        icon_image.pixels = reinterpret_cast<unsigned char*>(image->pixels);
+        glfwSetWindowIcon(globals::window, 1, &icon_image);
+    }
+
+    if(io::cmdline::contains("nosound")) {
+        spdlog::warn("client: sound disabled [per command line]");
+        globals::sound_dev = nullptr;
+        globals::sound_ctx = nullptr;
+    }
+    else {
+        if(!saladLoadALdefault()) {
+            spdlog::warn("client: sound disabled [openal loading failed]");
+            globals::sound_dev = nullptr;
+            globals::sound_ctx = nullptr;
+        }
+        else {
+            globals::sound_dev = alcOpenDevice(nullptr);
+
+            if(globals::sound_dev == nullptr) {
+                spdlog::warn("client: sound disabled [no device]");
+                globals::sound_ctx = nullptr;
+            }
+            else {
+                spdlog::info("sound: {}", reinterpret_cast<const char*>(alcGetString(globals::sound_dev, ALC_DEVICE_SPECIFIER)));
+
+                globals::sound_ctx = alcCreateContext(globals::sound_dev, nullptr);
+
+                if(globals::sound_ctx == nullptr) {
+                    spdlog::warn("client: sound disabled [context creation failed]");
+                    alcCloseDevice(globals::sound_dev);
+                    globals::sound_dev = nullptr;
+                }
+                else {
+                    alcMakeContextCurrent(globals::sound_ctx);
+                }
+            }
+        }
+    }
+
+    splash::init_client();
+
+    gui::window_title::update();
+
+    ImGuiIO& io = ImGui::GetIO();
+    io.ConfigFlags &= ~ImGuiConfigFlags_NavEnableGamepad;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+    globals::fixed_frametime = 0.0f;
+    globals::fixed_frametime_avg = 0.0f;
+    globals::fixed_frametime_us = UINT64_MAX;
+    globals::fixed_framecount = 0;
+
+    globals::curtime = utils::unix_microseconds();
+
+    globals::window_frametime = 0.0f;
+    globals::window_frametime_avg = 0.0f;
+    globals::window_frametime_us = 0;
+    globals::window_framecount = 0;
+
+    int vmode_width = DEFAULT_WIDTH;
+    int vmode_height = DEFAULT_HEIGHT;
+
+    if(auto vmode = io::cmdline::get_cstr("mode")) {
+        std::sscanf(vmode, "%dx%d", &vmode_width, &vmode_height);
+        vmode_height = glm::max(vmode_height, MIN_HEIGHT);
+        vmode_width = glm::max(vmode_width, MIN_WIDTH);
+    }
+
+    glfwSetWindowSize(globals::window, vmode_width, vmode_height);
+
+    client_game::init();
+
+    int wwidth, wheight;
+    glfwGetFramebufferSize(globals::window, &wwidth, &wheight);
+    on_glfw_framebuffer_size(globals::window, wwidth, wheight);
+
+    threading::init();
+
+    globals::client_config.load_file("client.conf");
+    globals::client_config.load_cmdline();
+
+    client_game::init_late();
+
+    auto last_curtime = globals::curtime;
+
+    while(!glfwWindowShouldClose(globals::window)) {
+        globals::curtime = utils::unix_microseconds();
+
+        globals::window_frametime_us = globals::curtime - last_curtime;
+        globals::window_frametime = static_cast<float>(globals::window_frametime_us) / 1000000.0f;
+        globals::window_frametime_avg += globals::window_frametime;
+        globals::window_frametime_avg *= 0.5f;
+
+        if(globals::fixed_frametime_us == UINT64_MAX) {
+            globals::fixed_framecount = 0;
+            globals::fixed_accumulator = 0;
+        }
+        else {
+            globals::fixed_accumulator += globals::window_frametime_us;
+            globals::fixed_framecount = globals::fixed_accumulator / globals::fixed_frametime_us;
+            globals::fixed_accumulator %= globals::fixed_frametime_us;
+        }
+
+        globals::num_drawcalls = 0;
+        globals::num_triangles = 0;
+
+        last_curtime = globals::curtime;
+
+        for(std::uint64_t i = 0; i < globals::fixed_framecount; ++i)
+            client_game::fixed_update();
+        client_game::update();
+
+        ImGui_ImplOpenGL3_NewFrame();
+        ImGui_ImplGlfw_NewFrame();
+        ImGui::NewFrame();
+
+        glDisable(GL_BLEND);
+
+        glDisable(GL_DEPTH_TEST);
+        glBindFramebuffer(GL_FRAMEBUFFER, 0);
+        glViewport(0, 0, globals::width, globals::height);
+
+        glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+        glClear(GL_COLOR_BUFFER_BIT);
+
+        // Make sure there is no stray program object
+        // being bound to the context. Usually third-party
+        // overlay software (such as RivaTuner) injects itself
+        // into the rendering loop and binds internal objects,
+        // which creates an incomprehensible visual mess
+        glUseProgram(0);
+
+        client_game::render();
+
+        client_game::layout();
+
+        ImGui::Render();
+        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+        glfwSwapBuffers(globals::window);
+
+        for(std::uint64_t i = 0; i < globals::fixed_framecount; ++i)
+            client_game::fixed_update_late();
+        client_game::update_late();
+
+        glfwPollEvents();
+
+        // EnTT provides two ways of dispatching events:
+        // queued and immediate. When glfwPollEvents() is
+        // called, immediate events are triggered across
+        // the application, whilst queued ones are triggered
+        // later by calling entt::dispatcher::update()
+        globals::dispatcher.update();
+
+        globals::window_framecount += 1;
+
+        resource::soft_cleanup();
+
+        threading::update();
+    }
+
+    client_game::shutdown();
+
+    resource::hard_cleanup();
+
+    spdlog::info("client: shutdown after {} frames", globals::window_framecount);
+    spdlog::info("client: average framerate: {:.03f} FPS", 1.0f / globals::window_frametime_avg);
+    spdlog::info("client: average frametime: {:.03f} ms", 1000.0f * globals::window_frametime_avg);
+
+    ImGui_ImplOpenGL3_Shutdown();
+    ImGui_ImplGlfw_Shutdown();
+    ImGui::DestroyContext();
+
+    if(globals::sound_ctx) {
+        alcMakeContextCurrent(nullptr);
+        alcDestroyContext(globals::sound_ctx);
+        alcCloseDevice(globals::sound_dev);
+    }
+
+    glfwDestroyWindow(globals::window);
+    glfwTerminate();
+
+    globals::client_config.save_file("client.conf");
+
+    threading::shutdown();
+
+    shared_game::shutdown();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/game/client/pch.hh b/src/game/client/pch.hh
new file mode 100644
index 0000000..3832081
--- /dev/null
+++ b/src/game/client/pch.hh
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <shared/pch.hh>
+
+#include <AL/al.h>
+#include <AL/alc.h>
+#include <AL/salad.h>
+
+#include <dr_mp3.h>
+#include <dr_wav.h>
+
+#include <GLFW/glfw3.h>
+
+#include <glad/gl.h>
+
+#include <imgui.h>
+#include <imgui_impl_glfw.h>
+#include <imgui_impl_opengl3.h>
+#include <imgui_stdlib.h>
+
+#if defined(_WIN32)
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#endif
+
+#if defined(__unix__)
+#include <dlfcn.h>
+#endif
diff --git a/src/game/client/program.cc b/src/game/client/program.cc
new file mode 100644
index 0000000..88cbe28
--- /dev/null
+++ b/src/game/client/program.cc
@@ -0,0 +1,226 @@
+#include "client/pch.hh"
+
+#include "client/program.hh"
+
+#include "core/io/physfs.hh"
+
+#include "core/utils/string.hh"
+
+// This fills up the array of source lines and figures out
+// which lines are to be dynamically resolved as variant macros
+static void parse_source(std::string_view source, std::vector<std::string>& out_lines, std::vector<GL_VariedMacro>& out_variants)
+{
+    std::string line;
+    std::istringstream stream = std::istringstream(std::string(source));
+    unsigned long line_number = 0UL;
+
+    out_lines.clear();
+    out_variants.clear();
+
+    while(std::getline(stream, line)) {
+        unsigned int macro_index = {};
+        char macro_name[128] = {};
+
+        if(std::sscanf(line.c_str(), " # pragma variant [ %u ] %127[^, \"\t\r\n]", &macro_index, &macro_name) == 2) {
+            if(out_variants.size() <= macro_index) {
+                out_variants.resize(macro_index + 1U);
+            }
+
+            out_variants[macro_index].name = macro_name;
+            out_variants[macro_index].line = line_number;
+            out_variants[macro_index].value = std::numeric_limits<unsigned int>::max();
+
+            out_lines.push_back(std::string());
+            line_number += 1UL;
+        }
+        else {
+            out_lines.push_back(line);
+            line_number += 1UL;
+        }
+    }
+}
+
+static GLuint compile_shader(std::string_view path, const char* source, GLenum shader_stage)
+{
+    GLuint shader = glCreateShader(shader_stage);
+    glShaderSource(shader, 1, &source, nullptr);
+    glCompileShader(shader);
+
+    GLint info_log_length;
+    glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &info_log_length);
+
+    if(info_log_length >= 2) {
+        std::basic_string<GLchar> info_log;
+        info_log.resize(info_log_length);
+        glGetShaderInfoLog(shader, info_log_length, nullptr, info_log.data());
+        spdlog::info("gl_program: {}: shader information:", path);
+        spdlog::info(info_log);
+    }
+
+    GLint compile_status;
+    glGetShaderiv(shader, GL_COMPILE_STATUS, &compile_status);
+
+    if(!compile_status) {
+        glDeleteShader(shader);
+        return 0;
+    }
+
+    return shader;
+}
+
+bool GL_Program::setup(std::string_view vpath, std::string_view fpath)
+{
+    destroy();
+
+    vert_path = std::string(vpath);
+    frag_path = std::string(fpath);
+
+    auto vfile = PHYSFS_openRead(vert_path.c_str());
+
+    if(vfile == nullptr) {
+        spdlog::warn("gl_program: {}: {}", vpath, io::physfs_error());
+        return false;
+    }
+
+    auto vsource = std::string(PHYSFS_fileLength(vfile), char(0x00));
+    PHYSFS_readBytes(vfile, vsource.data(), vsource.size());
+    PHYSFS_close(vfile);
+
+    auto ffile = PHYSFS_openRead(frag_path.c_str());
+
+    if(ffile == nullptr) {
+        spdlog::warn("gl_program: {}: {}", fpath, io::physfs_error());
+        return false;
+    }
+
+    auto fsource = std::string(PHYSFS_fileLength(ffile), char(0x00));
+    PHYSFS_readBytes(ffile, fsource.data(), fsource.size());
+    PHYSFS_close(ffile);
+
+    parse_source(vsource.c_str(), vert_source, vert_variants);
+    parse_source(fsource.c_str(), frag_source, frag_variants);
+
+    needs_update = true;
+    handle = 0;
+
+    return true;
+}
+
+bool GL_Program::update(void)
+{
+    if(!needs_update) {
+        // The program is already up to
+        // date with the internal state
+        return true;
+    }
+
+    for(const auto& macro : vert_variants)
+        vert_source[macro.line] = std::format("#define {} {}", macro.name, macro.value);
+    for(const auto& macro : frag_variants)
+        frag_source[macro.line] = std::format("#define {} {}", macro.name, macro.value);
+
+    std::string vsource(utils::join(vert_source, "\r\n"));
+    std::string fsource(utils::join(frag_source, "\r\n"));
+
+    GLuint vert = compile_shader(vert_path.c_str(), vsource.c_str(), GL_VERTEX_SHADER);
+    GLuint frag = compile_shader(frag_path.c_str(), fsource.c_str(), GL_FRAGMENT_SHADER);
+
+    if(!vert || !frag) {
+        // needs_update = false;
+        glDeleteShader(frag);
+        glDeleteShader(vert);
+        return false;
+    }
+
+    handle = glCreateProgram();
+    glAttachShader(handle, vert);
+    glAttachShader(handle, frag);
+    glLinkProgram(handle);
+
+    GLint info_log_length;
+    glGetProgramiv(handle, GL_INFO_LOG_LENGTH, &info_log_length);
+
+    if(info_log_length >= 2) {
+        std::basic_string<GLchar> info_log;
+        info_log.resize(info_log_length);
+        glGetProgramInfoLog(handle, info_log_length, nullptr, info_log.data());
+        spdlog::info("gl_program: [{}; {}]: program information", vert, frag);
+        spdlog::info(info_log);
+    }
+
+    glDeleteShader(frag);
+    glDeleteShader(vert);
+
+    GLint link_status;
+    glGetProgramiv(handle, GL_LINK_STATUS, &link_status);
+
+    if(!link_status) {
+        // needs_update = false;
+        glDeleteProgram(handle);
+        return false;
+    }
+
+    for(auto& uniform : uniforms) {
+        // NOTE: GL seems to silently ignore invalid uniform
+        // locations (-1); should we write something into logs about this?
+        uniform.location = glGetUniformLocation(handle, uniform.name.c_str());
+    }
+
+    needs_update = false;
+    return true;
+}
+
+void GL_Program::destroy(void)
+{
+    if(handle) {
+        glDeleteProgram(handle);
+        handle = 0;
+    }
+
+    uniforms.clear();
+
+    frag_variants.clear();
+    frag_source.clear();
+    frag_path = std::string();
+
+    vert_variants.clear();
+    vert_source.clear();
+    vert_path = std::string();
+
+    needs_update = false;
+}
+
+std::size_t GL_Program::add_uniform(std::string_view name)
+{
+    for(std::size_t i = 0; i < uniforms.size(); ++i) {
+        if(0 == uniforms[i].name.compare(name)) {
+            return i;
+        }
+    }
+
+    const std::size_t index = uniforms.size();
+    uniforms.push_back(GL_Uniform());
+    uniforms[index].location = -1;
+    uniforms[index].name = name;
+    return index;
+}
+
+void GL_Program::set_variant_vert(unsigned int variant, unsigned int value)
+{
+    if(variant < vert_variants.size()) {
+        if(value != vert_variants[variant].value) {
+            vert_variants[variant].value = value;
+            needs_update = true;
+        }
+    }
+}
+
+void GL_Program::set_variant_frag(unsigned int variant, unsigned int value)
+{
+    if(variant < frag_variants.size()) {
+        if(value != frag_variants[variant].value) {
+            frag_variants[variant].value = value;
+            needs_update = true;
+        }
+    }
+}
diff --git a/src/game/client/program.hh b/src/game/client/program.hh
new file mode 100644
index 0000000..af78513
--- /dev/null
+++ b/src/game/client/program.hh
@@ -0,0 +1,34 @@
+#pragma once
+
+struct GL_VariedMacro final {
+    std::string name;
+    unsigned long line;
+    unsigned int value;
+};
+
+struct GL_Uniform final {
+    std::string name;
+    GLint location;
+};
+
+class GL_Program final {
+public:
+    bool setup(std::string_view vpath, std::string_view fpath);
+    void destroy(void);
+    bool update(void);
+
+    std::size_t add_uniform(std::string_view name);
+    void set_variant_vert(unsigned int variant, unsigned int value);
+    void set_variant_frag(unsigned int variant, unsigned int value);
+
+public:
+    std::string vert_path;
+    std::string frag_path;
+    std::vector<std::string> vert_source;
+    std::vector<std::string> frag_source;
+    std::vector<GL_VariedMacro> vert_variants;
+    std::vector<GL_VariedMacro> frag_variants;
+    std::vector<GL_Uniform> uniforms;
+    bool needs_update;
+    GLuint handle;
+};
diff --git a/src/game/client/receive.cc b/src/game/client/receive.cc
new file mode 100644
index 0000000..a253911
--- /dev/null
+++ b/src/game/client/receive.cc
@@ -0,0 +1,192 @@
+#include "client/pch.hh"
+
+#include "client/receive.hh"
+
+#include "shared/entity/head.hh"
+#include "shared/entity/player.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/protocol.hh"
+
+#include "client/entity/factory.hh"
+
+#include "client/gui/chat.hh"
+#include "client/gui/gui_screen.hh"
+#include "client/gui/message_box.hh"
+#include "client/gui/window_title.hh"
+
+#include "client/sound/sound.hh"
+
+#include "client/globals.hh"
+#include "client/session.hh"
+
+static bool synchronize_entity_id(world::Dimension* dimension, entt::entity entity)
+{
+    if(dimension->entities.valid(entity)) {
+        // Entity ID already exists
+        return true;
+    }
+
+    auto created = dimension->entities.create(entity);
+
+    if(created == entity) {
+        // Synchronized successfully
+        return true;
+    }
+
+    session::disconnect("protocol.entity_id_desync");
+    spdlog::critical("receive: entity desync: network {} resolved as client {}", static_cast<std::uint64_t>(entity),
+        static_cast<std::uint64_t>(created));
+
+    gui::message_box::reset();
+    gui::message_box::set_title("disconnected.disconnected");
+    gui::message_box::set_subtitle("protocol.entity_id_desync");
+    gui::message_box::add_button("disconnected.back", [](void) {
+        globals::gui_screen = GUI_PLAY_MENU;
+        gui::window_title::update();
+    });
+
+    globals::gui_screen = GUI_MESSAGE_BOX;
+
+    return false;
+}
+
+static void on_dimension_info_packet(const protocol::DimensionInfo& packet)
+{
+    if(session::peer) {
+        if(globals::dimension) {
+            delete globals::dimension;
+            globals::dimension = nullptr;
+            globals::player = entt::null;
+        }
+
+        globals::dimension = new world::Dimension(packet.name.c_str(), packet.gravity);
+    }
+}
+
+static void on_chunk_voxels_packet(const protocol::ChunkVoxels& packet)
+{
+    if(session::peer && globals::dimension) {
+        auto chunk = globals::dimension->create_chunk(packet.chunk);
+        chunk->set_voxels(packet.voxels);
+
+        world::ChunkUpdateEvent event;
+        event.dimension = globals::dimension;
+        event.cpos = packet.chunk;
+        event.chunk = chunk;
+
+        globals::dispatcher.trigger(event);
+
+        return;
+    }
+}
+
+static void on_entity_head_packet(const protocol::EntityHead& packet)
+{
+    if(session::peer && globals::dimension) {
+        if(synchronize_entity_id(globals::dimension, packet.entity)) {
+            auto& component = globals::dimension->entities.get_or_emplace<entity::Head>(packet.entity);
+            auto& prevcomp = globals::dimension->entities.get_or_emplace<entity::client::HeadPrev>(packet.entity);
+
+            // Store the previous component state
+            prevcomp.angles = component.angles;
+            prevcomp.offset = component.offset;
+
+            // Assign the new component state
+            component.angles = packet.angles;
+        }
+    }
+}
+
+static void on_entity_transform_packet(const protocol::EntityTransform& packet)
+{
+    if(session::peer && globals::dimension) {
+        if(synchronize_entity_id(globals::dimension, packet.entity)) {
+            auto& component = globals::dimension->entities.get_or_emplace<entity::Transform>(packet.entity);
+            auto& prevcomp = globals::dimension->entities.get_or_emplace<entity::client::TransformPrev>(packet.entity);
+
+            // Store the previous component state
+            prevcomp.angles = component.angles;
+            prevcomp.chunk = component.chunk;
+            prevcomp.local = component.local;
+
+            // Assign the new component state
+            component.angles = packet.angles;
+            component.chunk = packet.chunk;
+            component.local = packet.local;
+        }
+    }
+}
+
+static void on_entity_velocity_packet(const protocol::EntityVelocity& packet)
+{
+    if(session::peer && globals::dimension) {
+        if(synchronize_entity_id(globals::dimension, packet.entity)) {
+            auto& component = globals::dimension->entities.get_or_emplace<entity::Velocity>(packet.entity);
+            component.value = packet.value;
+        }
+    }
+}
+
+static void on_entity_player_packet(const protocol::EntityPlayer& packet)
+{
+    if(session::peer && globals::dimension) {
+        if(synchronize_entity_id(globals::dimension, packet.entity)) {
+            entity::client::create_player(globals::dimension, packet.entity);
+        }
+    }
+}
+
+static void on_spawn_player_packet(const protocol::SpawnPlayer& packet)
+{
+    if(session::peer && globals::dimension) {
+        if(synchronize_entity_id(globals::dimension, packet.entity)) {
+            entity::client::create_player(globals::dimension, packet.entity);
+
+            globals::player = packet.entity;
+            globals::gui_screen = GUI_SCREEN_NONE;
+
+            gui::client_chat::refresh_timings();
+
+            gui::window_title::update();
+        }
+    }
+}
+
+static void on_remove_entity_packet(const protocol::RemoveEntity& packet)
+{
+    if(globals::dimension) {
+        if(packet.entity == globals::player) {
+            globals::player = entt::null;
+        }
+
+        globals::dimension->entities.destroy(packet.entity);
+    }
+}
+
+static void on_generic_sound_packet(const protocol::GenericSound& packet)
+{
+    sound::play_generic(packet.sound.c_str(), packet.looping, packet.pitch);
+}
+
+static void on_entity_sound_packet(const protocol::EntitySound& packet)
+{
+    sound::play_entity(packet.entity, packet.sound.c_str(), packet.looping, packet.pitch);
+}
+
+void client_receive::init(void)
+{
+    globals::dispatcher.sink<protocol::DimensionInfo>().connect<&on_dimension_info_packet>();
+    globals::dispatcher.sink<protocol::ChunkVoxels>().connect<&on_chunk_voxels_packet>();
+    globals::dispatcher.sink<protocol::EntityHead>().connect<&on_entity_head_packet>();
+    globals::dispatcher.sink<protocol::EntityTransform>().connect<&on_entity_transform_packet>();
+    globals::dispatcher.sink<protocol::EntityVelocity>().connect<&on_entity_velocity_packet>();
+    globals::dispatcher.sink<protocol::EntityPlayer>().connect<&on_entity_player_packet>();
+    globals::dispatcher.sink<protocol::SpawnPlayer>().connect<&on_spawn_player_packet>();
+    globals::dispatcher.sink<protocol::RemoveEntity>().connect<&on_remove_entity_packet>();
+    globals::dispatcher.sink<protocol::GenericSound>().connect<&on_generic_sound_packet>();
+    globals::dispatcher.sink<protocol::EntitySound>().connect<&on_entity_sound_packet>();
+}
diff --git a/src/game/client/receive.hh b/src/game/client/receive.hh
new file mode 100644
index 0000000..d675392
--- /dev/null
+++ b/src/game/client/receive.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace client_receive
+{
+void init(void);
+} // namespace client_receive
diff --git a/src/game/client/resource/CMakeLists.txt b/src/game/client/resource/CMakeLists.txt
new file mode 100644
index 0000000..baf2311
--- /dev/null
+++ b/src/game/client/resource/CMakeLists.txt
@@ -0,0 +1,5 @@
+target_sources(vclient PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/sound_effect.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/sound_effect.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/texture_gui.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/texture_gui.hh")
diff --git a/src/game/client/resource/sound_effect.cc b/src/game/client/resource/sound_effect.cc
new file mode 100644
index 0000000..5bbb949
--- /dev/null
+++ b/src/game/client/resource/sound_effect.cc
@@ -0,0 +1,90 @@
+#include "client/pch.hh"
+
+#include "client/resource/sound_effect.hh"
+
+#include "core/resource/resource.hh"
+
+#include "core/io/physfs.hh"
+
+#include "client/globals.hh"
+
+static std::size_t drwav_read_physfs(void* file, void* output, std::size_t count)
+{
+    return static_cast<std::size_t>(PHYSFS_readBytes(reinterpret_cast<PHYSFS_File*>(file), output, count));
+}
+
+static drwav_bool32 drwav_seek_physfs(void* file, int offset, drwav_seek_origin origin)
+{
+    if(origin == drwav_seek_origin_current) {
+        return PHYSFS_seek(reinterpret_cast<PHYSFS_File*>(file), PHYSFS_tell(reinterpret_cast<PHYSFS_File*>(file)) + offset);
+    }
+    else {
+        return PHYSFS_seek(reinterpret_cast<PHYSFS_File*>(file), offset);
+    }
+}
+
+static const void* sound_effect_load_func(const char* name, std::uint32_t flags)
+{
+    assert(name);
+
+    if(globals::sound_ctx == nullptr) {
+        // Sound is disabled
+        return nullptr;
+    }
+
+    auto file = PHYSFS_openRead(name);
+
+    if(file == nullptr) {
+        spdlog::warn("sfx: {}: {}", name, io::physfs_error());
+        return nullptr;
+    }
+
+    drwav wav_info;
+
+    if(!drwav_init(&wav_info, &drwav_read_physfs, &drwav_seek_physfs, file, nullptr)) {
+        spdlog::warn("sfx: {}: drwav_init failed", name);
+        PHYSFS_close(file);
+        return nullptr;
+    }
+
+    if(wav_info.channels != 1) {
+        spdlog::warn("sfx: {}: only mono sound files are allowed", name);
+        drwav_uninit(&wav_info);
+        PHYSFS_close(file);
+        return nullptr;
+    }
+
+    auto samples = new ALshort[wav_info.totalPCMFrameCount];
+    auto count = drwav_read_pcm_frames_s16(&wav_info, wav_info.totalPCMFrameCount, reinterpret_cast<drwav_int16*>(samples));
+    auto sample_rate = static_cast<ALsizei>(wav_info.sampleRate);
+    auto length = static_cast<ALsizei>(count * sizeof(ALshort));
+
+    drwav_uninit(&wav_info);
+    PHYSFS_close(file);
+
+    auto new_resource = new SoundEffect();
+    new_resource->name = std::string(name);
+
+    alGenBuffers(1, &new_resource->buffer);
+    alBufferData(new_resource->buffer, AL_FORMAT_MONO16, samples, length, sample_rate);
+
+    delete[] samples;
+
+    return new_resource;
+}
+
+static void sound_effect_free_func(const void* resource)
+{
+    assert(resource);
+
+    auto sound_effect = reinterpret_cast<const SoundEffect*>(resource);
+
+    alDeleteBuffers(1, &sound_effect->buffer);
+
+    delete sound_effect;
+}
+
+void SoundEffect::register_resource(void)
+{
+    resource::register_loader<SoundEffect>(&sound_effect_load_func, &sound_effect_free_func);
+}
diff --git a/src/game/client/resource/sound_effect.hh b/src/game/client/resource/sound_effect.hh
new file mode 100644
index 0000000..f2db33b
--- /dev/null
+++ b/src/game/client/resource/sound_effect.hh
@@ -0,0 +1,8 @@
+#pragma once
+
+struct SoundEffect final {
+    static void register_resource(void);
+
+    std::string name;
+    ALuint buffer;
+};
diff --git a/src/game/client/resource/texture_gui.cc b/src/game/client/resource/texture_gui.cc
new file mode 100644
index 0000000..beb2f54
--- /dev/null
+++ b/src/game/client/resource/texture_gui.cc
@@ -0,0 +1,83 @@
+#include "client/pch.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "core/resource/image.hh"
+#include "core/resource/resource.hh"
+
+static const void* texture_gui_load_func(const char* name, std::uint32_t flags)
+{
+    assert(name);
+
+    unsigned int image_load_flags = 0U;
+
+    if(flags & TEXTURE_GUI_LOAD_VFLIP) {
+        image_load_flags |= IMAGE_LOAD_FLIP;
+    }
+
+    if(flags & TEXTURE_GUI_LOAD_GRAYSCALE) {
+        image_load_flags |= IMAGE_LOAD_GRAY;
+    }
+
+    if(auto image = resource::load<Image>(name, image_load_flags)) {
+        GLuint gl_texture;
+
+        glGenTextures(1, &gl_texture);
+        glBindTexture(GL_TEXTURE_2D, gl_texture);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, image->size.x, image->size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
+
+        if(flags & TEXTURE_GUI_LOAD_CLAMP_S) {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        }
+        else {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+        }
+
+        if(flags & TEXTURE_GUI_LOAD_CLAMP_T) {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+        }
+        else {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+        }
+
+        if(flags & TEXTURE_GUI_LOAD_LINEAR_MAG) {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        }
+        else {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        }
+
+        if(flags & TEXTURE_GUI_LOAD_LINEAR_MIN) {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        }
+        else {
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        }
+
+        auto new_resource = new TextureGUI();
+        new_resource->handle = static_cast<ImTextureID>(gl_texture);
+        new_resource->size.x = image->size.x;
+        new_resource->size.y = image->size.y;
+
+        return new_resource;
+    }
+
+    return nullptr;
+}
+
+static void texture_gui_free_func(const void* resource)
+{
+    assert(resource);
+
+    auto texture_gui = reinterpret_cast<const TextureGUI*>(resource);
+    auto gl_texture = static_cast<GLuint>(texture_gui->handle);
+
+    glDeleteTextures(1, &gl_texture);
+
+    delete texture_gui;
+}
+
+void TextureGUI::register_resource(void)
+{
+    resource::register_loader<TextureGUI>(&texture_gui_load_func, &texture_gui_free_func);
+}
diff --git a/src/game/client/resource/texture_gui.hh b/src/game/client/resource/texture_gui.hh
new file mode 100644
index 0000000..2d42c83
--- /dev/null
+++ b/src/game/client/resource/texture_gui.hh
@@ -0,0 +1,15 @@
+#pragma once
+
+constexpr static unsigned int TEXTURE_GUI_LOAD_CLAMP_S = 0x0001;
+constexpr static unsigned int TEXTURE_GUI_LOAD_CLAMP_T = 0x0002;
+constexpr static unsigned int TEXTURE_GUI_LOAD_LINEAR_MAG = 0x0004;
+constexpr static unsigned int TEXTURE_GUI_LOAD_LINEAR_MIN = 0x0008;
+constexpr static unsigned int TEXTURE_GUI_LOAD_VFLIP = 0x0010;
+constexpr static unsigned int TEXTURE_GUI_LOAD_GRAYSCALE = 0x0020;
+
+struct TextureGUI final {
+    static void register_resource(void);
+
+    ImTextureID handle;
+    glm::ivec2 size;
+};
diff --git a/src/game/client/screenshot.cc b/src/game/client/screenshot.cc
new file mode 100644
index 0000000..9b573ef
--- /dev/null
+++ b/src/game/client/screenshot.cc
@@ -0,0 +1,86 @@
+#include "client/pch.hh"
+
+#include "client/screenshot.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/utils/epoch.hh"
+
+#include "client/config/keybind.hh"
+
+#include "client/gui/chat.hh"
+#include "client/gui/language.hh"
+#include "client/gui/settings.hh"
+
+#include "client/io/glfw.hh"
+
+#include "client/globals.hh"
+#include "client/toggles.hh"
+
+static config::KeyBind screenshot_key(GLFW_KEY_F2);
+
+static void stbi_png_physfs_callback(void* context, void* data, int size)
+{
+    PHYSFS_writeBytes(reinterpret_cast<PHYSFS_File*>(context), data, size);
+}
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if(!globals::gui_keybind_ptr && !toggles::is_sequence_await) {
+        if(screenshot_key.equals(event.key) && (event.action == GLFW_PRESS)) {
+            screenshot::take();
+            return;
+        }
+    }
+}
+
+void screenshot::init(void)
+{
+    globals::client_config.add_value("screenshot.key", screenshot_key);
+
+    settings::add_keybind(0, screenshot_key, settings_location::KEYBOARD_MISC, "key.screenshot");
+
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+}
+
+void screenshot::take(void)
+{
+    auto stride = 3 * globals::width;
+    auto length = 3 * globals::width * globals::height;
+    auto pixels = new std::byte[length];
+
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+    GLint old_pack_alignment;
+    glGetIntegerv(GL_PACK_ALIGNMENT, &old_pack_alignment);
+
+    // The window can be of any size, including irregular
+    // values such as, say 641x480, while there is a default
+    // alignment value of sorts that might result in a corrupted
+    // image; we set GL_PACK_ALIGNMENT to 1, enabling byte-alignment
+    glPixelStorei(GL_PACK_ALIGNMENT, 1);
+
+    glReadPixels(0, 0, globals::width, globals::height, GL_RGB, GL_UNSIGNED_BYTE, pixels);
+
+    // Restore the old pack alignment value
+    glPixelStorei(GL_PACK_ALIGNMENT, old_pack_alignment);
+
+    const auto directory = std::string("screenshots");
+    const auto filename = std::format("{}.png", utils::unix_microseconds());
+    const auto filepath = std::format("{}/{}", directory, filename);
+
+    PHYSFS_mkdir(directory.c_str());
+
+    if(auto file = PHYSFS_openWrite(filepath.c_str())) {
+        stbi_flip_vertically_on_write(true);
+        stbi_write_png_to_func(&stbi_png_physfs_callback, file, globals::width, globals::height, 3, pixels, stride);
+
+        spdlog::info("screenshot: wrote {}", filepath);
+
+        gui::client_chat::print(std::format("{} {}", gui::language::resolve("chat.screenshot_message"), filename));
+
+        PHYSFS_close(file);
+    }
+
+    delete[] pixels;
+}
diff --git a/src/game/client/screenshot.hh b/src/game/client/screenshot.hh
new file mode 100644
index 0000000..fecbd2f
--- /dev/null
+++ b/src/game/client/screenshot.hh
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace screenshot
+{
+void init(void);
+void take(void);
+} // namespace screenshot
diff --git a/src/game/client/session.cc b/src/game/client/session.cc
new file mode 100644
index 0000000..36acfb4
--- /dev/null
+++ b/src/game/client/session.cc
@@ -0,0 +1,313 @@
+#include "client/pch.hh"
+
+#include "client/session.hh"
+
+#include "core/config/string.hh"
+
+#include "core/math/crc64.hh"
+
+#include "core/version.hh"
+
+#include "shared/entity/head.hh"
+#include "shared/entity/player.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/item_registry.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+#include "shared/protocol.hh"
+
+#include "client/entity/camera.hh"
+
+#include "client/gui/chat.hh"
+#include "client/gui/gui_screen.hh"
+#include "client/gui/message_box.hh"
+#include "client/gui/progress_bar.hh"
+#include "client/gui/window_title.hh"
+
+#include "client/world/chunk_visibility.hh"
+
+#include "client/game.hh"
+#include "client/globals.hh"
+
+ENetPeer* session::peer = nullptr;
+std::uint16_t session::client_index = UINT16_MAX;
+std::uint64_t session::client_identity = UINT64_MAX;
+
+static std::uint64_t server_password_hash = UINT64_MAX;
+
+static void set_fixed_tickrate(std::uint16_t tickrate)
+{
+    globals::fixed_frametime_us = 1000000U / glm::clamp<std::uint64_t>(tickrate, 10U, 300U);
+    globals::fixed_frametime = static_cast<float>(globals::fixed_frametime_us) / 1000000.0f;
+    globals::fixed_accumulator = 0;
+}
+
+static void on_login_response_packet(const protocol::LoginResponse& packet)
+{
+    spdlog::info("session: assigned client_index={}", packet.client_index);
+    spdlog::info("session: assigned client_identity={}", packet.client_identity);
+    spdlog::info("session: server ticks at {} TPS", packet.server_tickrate);
+
+    session::client_index = packet.client_index;
+    session::client_identity = packet.client_identity;
+
+    set_fixed_tickrate(packet.server_tickrate);
+
+    gui::progress_bar::set_title("connecting.loading_world");
+}
+
+static void on_disconnect_packet(const protocol::Disconnect& packet)
+{
+    enet_peer_disconnect(session::peer, 0);
+
+    spdlog::info("session: disconnected: {}", packet.reason);
+
+    gui::client_chat::clear();
+
+    session::peer = nullptr;
+    session::client_index = UINT16_MAX;
+    session::client_identity = UINT64_MAX;
+
+    globals::fixed_frametime_us = UINT64_MAX;
+    globals::fixed_frametime = 0.0f;
+    globals::fixed_accumulator = 0;
+
+    server_password_hash = UINT64_MAX;
+
+    delete globals::dimension;
+    globals::player = entt::null;
+    globals::dimension = nullptr;
+
+    gui::message_box::reset();
+    gui::message_box::set_title("disconnected.disconnected");
+    gui::message_box::set_subtitle(packet.reason.c_str());
+    gui::message_box::add_button("disconnected.back", [](void) {
+        globals::gui_screen = GUI_PLAY_MENU;
+        gui::window_title::update();
+    });
+
+    globals::gui_screen = GUI_MESSAGE_BOX;
+}
+
+static void on_set_voxel_packet(const protocol::SetVoxel& packet)
+{
+    auto cpos = coord::to_chunk(packet.vpos);
+    auto lpos = coord::to_local(packet.vpos);
+    auto index = coord::to_index(lpos);
+
+    if(auto chunk = globals::dimension->find_chunk(cpos)) {
+        auto packet_voxel = world::voxel_registry::find(packet.voxel);
+
+        if(chunk->get_voxel(index) != packet_voxel) {
+            chunk->set_voxel(packet_voxel, index);
+
+            world::ChunkUpdateEvent event;
+            event.dimension = globals::dimension;
+            event.chunk = chunk;
+            event.cpos = cpos;
+
+            // Send a generic ChunkUpdate event to shake
+            // up the mesher; directly calling world::set_voxel
+            // here would result in a networked feedback loop
+            // caused by event handler below tripping
+            globals::dispatcher.trigger(event);
+        }
+    }
+}
+
+// NOTE: [session] is a good place for this since [receive]
+// handles entity data sent by the server and [session] handles
+// everything else network related that is not player movement
+static void on_voxel_set(const world::VoxelSetEvent& event)
+{
+    if(session::peer) {
+        // Propagate changes to the server
+        // FIXME: should we also validate things here or wait for the server to do so
+        protocol::SetVoxel packet;
+        packet.vpos = coord::to_voxel(event.cpos, event.lpos);
+        packet.voxel = event.voxel ? event.voxel->get_id() : NULL_VOXEL_ID;
+
+        protocol::send(session::peer, protocol::encode(packet));
+    }
+}
+
+void session::init(void)
+{
+    session::peer = nullptr;
+    session::client_index = UINT16_MAX;
+    session::client_identity = UINT64_MAX;
+
+    globals::fixed_frametime_us = UINT64_MAX;
+    globals::fixed_frametime = 0.0f;
+    globals::fixed_accumulator = 0;
+
+    server_password_hash = UINT64_MAX;
+
+    globals::dispatcher.sink<protocol::LoginResponse>().connect<&on_login_response_packet>();
+    globals::dispatcher.sink<protocol::Disconnect>().connect<&on_disconnect_packet>();
+    globals::dispatcher.sink<protocol::SetVoxel>().connect<&on_set_voxel_packet>();
+
+    globals::dispatcher.sink<world::VoxelSetEvent>().connect<&on_voxel_set>();
+}
+
+void session::shutdown(void)
+{
+    session::disconnect("protocol.client_shutdown");
+
+    globals::fixed_frametime_us = UINT64_MAX;
+    globals::fixed_frametime = 0.0f;
+    globals::fixed_accumulator = 0;
+}
+
+void session::invalidate(void)
+{
+    if(session::peer) {
+        enet_peer_reset(session::peer);
+
+        gui::message_box::reset();
+        gui::message_box::set_title("disconnected.disconnected");
+        gui::message_box::set_subtitle("enet.peer_connection_timeout");
+        gui::message_box::add_button("disconnected.back", [](void) {
+            globals::gui_screen = GUI_PLAY_MENU;
+            gui::window_title::update();
+        });
+
+        globals::gui_screen = GUI_MESSAGE_BOX;
+    }
+
+    gui::client_chat::clear();
+
+    session::peer = nullptr;
+    session::client_index = UINT16_MAX;
+    session::client_identity = UINT64_MAX;
+
+    globals::fixed_frametime_us = UINT64_MAX;
+    globals::fixed_frametime = 0.0f;
+    globals::fixed_accumulator = 0;
+
+    server_password_hash = UINT64_MAX;
+
+    delete globals::dimension;
+    globals::player = entt::null;
+    globals::dimension = nullptr;
+}
+
+void session::connect(std::string_view host, std::uint16_t port, std::string_view password)
+{
+    ENetAddress address;
+    enet_address_set_host(&address, std::string(host).c_str());
+    address.port = port;
+
+    session::peer = enet_host_connect(globals::client_host, &address, 1, 0);
+    session::client_index = UINT16_MAX;
+    session::client_identity = UINT64_MAX;
+
+    globals::fixed_frametime_us = UINT64_MAX;
+    globals::fixed_frametime = 0.0f;
+    globals::fixed_accumulator = 0;
+
+    server_password_hash = math::crc64(password.data(), password.size());
+
+    if(!session::peer) {
+        server_password_hash = UINT64_MAX;
+
+        gui::message_box::reset();
+        gui::message_box::set_title("disconnected.disconnected");
+        gui::message_box::set_subtitle("enet.peer_connection_failed");
+        gui::message_box::add_button("disconnected.back", [](void) {
+            globals::gui_screen = GUI_PLAY_MENU;
+            gui::window_title::update();
+        });
+
+        globals::gui_screen = GUI_MESSAGE_BOX;
+
+        return;
+    }
+
+    gui::progress_bar::reset();
+    gui::progress_bar::set_title("connecting.connecting");
+    gui::progress_bar::set_button("connecting.cancel_button", [](void) {
+        enet_peer_disconnect(session::peer, 0);
+
+        session::peer = nullptr;
+        session::client_index = UINT16_MAX;
+        session::client_identity = UINT64_MAX;
+
+        globals::fixed_frametime_us = UINT64_MAX;
+        globals::fixed_frametime = 0.0f;
+        globals::fixed_accumulator = 0;
+
+        server_password_hash = UINT64_MAX;
+
+        delete globals::dimension;
+        globals::player = entt::null;
+        globals::dimension = nullptr;
+
+        globals::gui_screen = GUI_PLAY_MENU;
+    });
+
+    globals::gui_screen = GUI_PROGRESS_BAR;
+}
+
+void session::disconnect(std::string_view reason)
+{
+    if(session::peer) {
+        protocol::Disconnect packet;
+        packet.reason = std::string(reason);
+
+        protocol::send(session::peer, protocol::encode(packet));
+
+        enet_host_flush(globals::client_host);
+        enet_host_service(globals::client_host, nullptr, 50);
+        enet_peer_reset(session::peer);
+
+        session::peer = nullptr;
+        session::client_index = UINT16_MAX;
+        session::client_identity = UINT64_MAX;
+
+        globals::fixed_frametime_us = UINT64_MAX;
+        globals::fixed_frametime = 0.0f;
+        globals::fixed_accumulator = 0;
+
+        server_password_hash = UINT64_MAX;
+
+        delete globals::dimension;
+        globals::player = entt::null;
+        globals::dimension = nullptr;
+
+        gui::client_chat::clear();
+    }
+}
+
+void session::send_login_request(void)
+{
+    protocol::LoginRequest packet;
+    packet.game_version_major = version::major;
+    packet.voxel_registry_checksum = world::voxel_registry::get_checksum();
+    packet.item_registry_checksum = world::item_registry::get_checksum();
+    packet.password_hash = server_password_hash;
+    packet.username = client_game::username.get();
+    packet.game_version_minor = version::minor;
+    packet.game_version_patch = version::patch;
+
+    protocol::send(session::peer, protocol::encode(packet));
+
+    server_password_hash = UINT64_MAX;
+
+    gui::progress_bar::set_title("connecting.logging_in");
+    globals::gui_screen = GUI_PROGRESS_BAR;
+}
+
+bool session::is_ingame(void)
+{
+    if(globals::dimension) {
+        return globals::dimension->entities.valid(globals::player);
+    }
+    else {
+        return false;
+    }
+}
diff --git a/src/game/client/session.hh b/src/game/client/session.hh
new file mode 100644
index 0000000..f61d62d
--- /dev/null
+++ b/src/game/client/session.hh
@@ -0,0 +1,27 @@
+#pragma once
+
+namespace session
+{
+extern ENetPeer* peer;
+extern std::uint16_t client_index;
+extern std::uint64_t client_identity;
+} // namespace session
+
+namespace session
+{
+void init(void);
+void shutdown(void);
+void invalidate(void);
+} // namespace session
+
+namespace session
+{
+void connect(std::string_view hostname, std::uint16_t port, std::string_view password);
+void disconnect(std::string_view reason);
+void send_login_request(void);
+} // namespace session
+
+namespace session
+{
+bool is_ingame(void);
+} // namespace session
diff --git a/src/game/client/sound/CMakeLists.txt b/src/game/client/sound/CMakeLists.txt
new file mode 100644
index 0000000..4b577d3
--- /dev/null
+++ b/src/game/client/sound/CMakeLists.txt
@@ -0,0 +1,3 @@
+target_sources(vclient PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/sound.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/sound.hh")
diff --git a/src/game/client/sound/sound.cc b/src/game/client/sound/sound.cc
new file mode 100644
index 0000000..7dfe562
--- /dev/null
+++ b/src/game/client/sound/sound.cc
@@ -0,0 +1,211 @@
+#include "client/pch.hh"
+
+#include "client/sound/sound.hh"
+
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "core/resource/resource.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/coord.hh"
+#include "shared/protocol.hh"
+
+#include "client/entity/camera.hh"
+#include "client/entity/sound_emitter.hh"
+
+#include "client/gui/settings.hh"
+
+#include "client/resource/sound_effect.hh"
+
+#include "client/const.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+config::Float sound::volume_master(100.0f, 0.0f, 100.0f);
+config::Float sound::volume_effects(100.0f, 0.0f, 100.0f);
+config::Float sound::volume_music(100.0f, 0.0f, 100.0f);
+config::Float sound::volume_ui(100.0f, 0.0f, 100.0f);
+
+static ALuint generic_source;
+static ALuint player_source;
+static ALuint ui_source;
+
+static resource_ptr<SoundEffect> sfx_generic;
+static resource_ptr<SoundEffect> sfx_player;
+static resource_ptr<SoundEffect> sfx_ui;
+
+void sound::init_config(void)
+{
+    globals::client_config.add_value("sound.volume_master", sound::volume_master);
+    globals::client_config.add_value("sound.volume_effects", sound::volume_effects);
+    globals::client_config.add_value("sound.volume_music", sound::volume_music);
+    globals::client_config.add_value("sound.volume_ui", sound::volume_ui);
+
+    settings::add_slider(1, sound::volume_master, settings_location::SOUND, "sound.volume_master", false, "%.0f%%");
+
+    settings::add_slider(0, sound::volume_effects, settings_location::SOUND_LEVELS, "sound.volume_effects", false, "%.0f%%");
+    settings::add_slider(1, sound::volume_music, settings_location::SOUND_LEVELS, "sound.volume_music", false, "%.0f%%");
+    settings::add_slider(2, sound::volume_ui, settings_location::SOUND_LEVELS, "sound.volume_ui", false, "%.0f%%");
+}
+
+void sound::init(void)
+{
+    alGenSources(1, &generic_source);
+    alSourcei(generic_source, AL_SOURCE_RELATIVE, AL_TRUE);
+    alSource3f(generic_source, AL_POSITION, 0.0f, 0.0f, 0.0f);
+    alSource3f(generic_source, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
+
+    alGenSources(1, &player_source);
+    alSourcei(player_source, AL_SOURCE_RELATIVE, AL_TRUE);
+    alSource3f(player_source, AL_POSITION, 0.0f, 0.0f, 0.0f);
+    alSource3f(player_source, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
+
+    alGenSources(1, &ui_source);
+    alSourcei(ui_source, AL_SOURCE_RELATIVE, AL_TRUE);
+    alSource3f(ui_source, AL_POSITION, 0.0f, 0.0f, 0.0f);
+    alSource3f(ui_source, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
+
+    sfx_generic = nullptr;
+    sfx_player = nullptr;
+    sfx_ui = nullptr;
+}
+
+void sound::init_late(void)
+{
+}
+
+void sound::shutdown(void)
+{
+    sfx_ui = nullptr;
+    sfx_player = nullptr;
+    sfx_generic = nullptr;
+
+    alDeleteBuffers(1, &ui_source);
+    alDeleteSources(1, &generic_source);
+    alDeleteSources(1, &player_source);
+}
+
+void sound::update(void)
+{
+    auto effects_gain = glm::clamp(0.01f * sound::volume_effects.get_value(), 0.0f, 1.0f);
+    alSourcef(generic_source, AL_GAIN, effects_gain);
+    alSourcef(player_source, AL_GAIN, effects_gain);
+
+    auto ui_gain = glm::clamp(0.01f * sound::volume_ui.get_value(), 0.0f, 1.0f);
+    alSourcef(ui_source, AL_GAIN, ui_gain);
+}
+
+void sound::play_generic(std::string_view sound, bool looping, float pitch)
+{
+    if(sound.size()) {
+        sound::play_generic(resource::load<SoundEffect>(sound), looping, pitch);
+    }
+    else {
+        sound::play_generic(static_cast<resource_ptr<SoundEffect>>(nullptr), looping, pitch);
+    }
+}
+
+void sound::play_entity(entt::entity entity, std::string_view sound, bool looping, float pitch)
+{
+    if(sound.size()) {
+        sound::play_entity(entity, resource::load<SoundEffect>(sound), looping, pitch);
+    }
+    else {
+        sound::play_entity(entity, static_cast<resource_ptr<SoundEffect>>(nullptr), looping, pitch);
+    }
+}
+
+void sound::play_player(std::string_view sound, bool looping, float pitch)
+{
+    if(sound.size()) {
+        sound::play_player(resource::load<SoundEffect>(sound), looping, pitch);
+    }
+    else {
+        sound::play_player(static_cast<resource_ptr<SoundEffect>>(nullptr), looping, pitch);
+    }
+}
+
+void sound::play_ui(std::string_view sound, bool looping, float pitch)
+{
+    if(sound.size()) {
+        sound::play_ui(resource::load<SoundEffect>(sound), looping, pitch);
+    }
+    else {
+        sound::play_ui(static_cast<resource_ptr<SoundEffect>>(nullptr), looping, pitch);
+    }
+}
+
+void sound::play_generic(resource_ptr<SoundEffect> sound, bool looping, float pitch)
+{
+    alSourceRewind(generic_source);
+
+    sfx_generic = sound;
+
+    if(sfx_generic) {
+        alSourcei(generic_source, AL_BUFFER, sfx_generic->buffer);
+        alSourcei(generic_source, AL_LOOPING, looping);
+        alSourcef(generic_source, AL_PITCH, glm::clamp(pitch, MIN_PITCH, MAX_PITCH));
+        alSourcePlay(generic_source);
+    }
+}
+
+void sound::play_entity(entt::entity entity, resource_ptr<SoundEffect> sound, bool looping, float pitch)
+{
+    if(globals::dimension && globals::dimension->entities.valid(entity)) {
+        if(auto emitter = globals::dimension->entities.try_get<entity::SoundEmitter>(entity)) {
+            alSourceRewind(emitter->source);
+
+            emitter->sound = sound;
+
+            if(emitter->sound) {
+                alSourcei(emitter->source, AL_BUFFER, emitter->sound->buffer);
+                alSourcei(emitter->source, AL_LOOPING, looping);
+                alSourcef(emitter->source, AL_PITCH, glm::clamp(pitch, MIN_PITCH, MAX_PITCH));
+                alSourcePlay(emitter->source);
+            }
+        }
+    }
+}
+
+void sound::play_player(resource_ptr<SoundEffect> sound, bool looping, float pitch)
+{
+    if(sound && session::is_ingame()) {
+        protocol::EntitySound packet;
+        packet.entity = globals::player;
+        packet.sound = sound->name;
+        packet.looping = looping;
+        packet.pitch = pitch;
+
+        protocol::send(session::peer, protocol::encode(packet));
+    }
+
+    alSourceRewind(player_source);
+
+    sfx_player = sound;
+
+    if(sfx_player) {
+        alSourcei(player_source, AL_BUFFER, sfx_player->buffer);
+        alSourcei(player_source, AL_LOOPING, looping);
+        alSourcef(player_source, AL_PITCH, glm::clamp(pitch, MIN_PITCH, MAX_PITCH));
+        alSourcePlay(player_source);
+    }
+}
+
+void sound::play_ui(resource_ptr<SoundEffect> sound, bool looping, float pitch)
+{
+    alSourceRewind(ui_source);
+
+    sfx_ui = sound;
+
+    if(sfx_ui) {
+        alSourcei(ui_source, AL_BUFFER, sfx_ui->buffer);
+        alSourcei(ui_source, AL_LOOPING, looping);
+        alSourcef(ui_source, AL_PITCH, glm::clamp(pitch, MIN_PITCH, MAX_PITCH));
+        alSourcePlay(ui_source);
+    }
+}
diff --git a/src/game/client/sound/sound.hh b/src/game/client/sound/sound.hh
new file mode 100644
index 0000000..d96d0c4
--- /dev/null
+++ b/src/game/client/sound/sound.hh
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "core/resource/resource.hh"
+
+namespace config
+{
+class Float;
+} // namespace config
+
+struct SoundEffect;
+
+namespace sound
+{
+extern config::Float volume_master;
+extern config::Float volume_effects;
+extern config::Float volume_music;
+extern config::Float volume_ui;
+} // namespace sound
+
+namespace sound
+{
+void init_config(void);
+void init(void);
+void init_late(void);
+void shutdown(void);
+void update(void);
+} // namespace sound
+
+namespace sound
+{
+void play_generic(std::string_view sound, bool looping, float pitch);
+void play_entity(entt::entity entity, std::string_view sound, bool looping, float pitch);
+void play_player(std::string_view sound, bool looping, float pitch);
+void play_ui(std::string_view sound, bool looping, float pitch);
+} // namespace sound
+
+namespace sound
+{
+void play_generic(resource_ptr<SoundEffect> sound, bool looping, float pitch);
+void play_entity(entt::entity entity, resource_ptr<SoundEffect> sound, bool looping, float pitch);
+void play_player(resource_ptr<SoundEffect> sound, bool looping, float pitch);
+void play_ui(resource_ptr<SoundEffect> sound, bool looping, float pitch);
+} // namespace sound
diff --git a/src/game/client/toggles.cc b/src/game/client/toggles.cc
new file mode 100644
index 0000000..833e099
--- /dev/null
+++ b/src/game/client/toggles.cc
@@ -0,0 +1,157 @@
+#include "client/pch.hh"
+
+#include "client/toggles.hh"
+
+#include "core/io/config_map.hh"
+
+#include "client/gui/chat.hh"
+#include "client/gui/language.hh"
+
+#include "client/io/gamepad.hh"
+#include "client/io/glfw.hh"
+
+#include "client/const.hh"
+#include "client/globals.hh"
+
+struct ToggleInfo final {
+    std::string_view description;
+    int glfw_keycode;
+    bool is_enabled;
+};
+
+bool toggles::is_sequence_await = false;
+
+static ToggleInfo toggle_infos[TOGGLE_COUNT];
+
+static void print_toggle_state(const ToggleInfo& info)
+{
+    if(info.description.size()) {
+        if(info.is_enabled) {
+            gui::client_chat::print(std::format("[toggles] {} ON", info.description));
+        }
+        else {
+            gui::client_chat::print(std::format("[toggles] {} OFF", info.description));
+        }
+    }
+}
+
+static void toggle_value(ToggleInfo& info, toggle_type type)
+{
+    if(info.is_enabled) {
+        info.is_enabled = false;
+        globals::dispatcher.trigger(ToggleDisabledEvent { type });
+    }
+    else {
+        info.is_enabled = true;
+        globals::dispatcher.trigger(ToggleEnabledEvent { type });
+    }
+
+    print_toggle_state(info);
+}
+
+static void on_glfw_key(const io::GlfwKeyEvent& event)
+{
+    if(globals::gui_keybind_ptr) {
+        // The UI keybind subsystem has the authority
+        // over debug toggles and it hogs the input keys
+        return;
+    }
+
+    if(event.key == DEBUG_KEY) {
+        if(event.action == GLFW_PRESS) {
+            toggles::is_sequence_await = true;
+            ImGui::GetIO().ConfigFlags &= ~ImGuiConfigFlags_NavEnableKeyboard;
+            return;
+        }
+
+        if(event.action == GLFW_RELEASE) {
+            toggles::is_sequence_await = false;
+            ImGui::GetIO().ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+            return;
+        }
+    }
+
+    if((event.action == GLFW_PRESS) && toggles::is_sequence_await) {
+        if(event.key == GLFW_KEY_L) {
+            // This causes the language subsystem
+            // to re-parse the JSON file essentially
+            // causing the game to soft-reload language
+            gui::language::set(gui::language::get_current());
+            return;
+        }
+
+        for(toggle_type i = 0; i < TOGGLE_COUNT; ++i) {
+            if(event.key == toggle_infos[i].glfw_keycode) {
+                toggle_value(toggle_infos[i], i);
+                return;
+            }
+        }
+    }
+}
+
+void toggles::init(void)
+{
+    toggle_infos[TOGGLE_WIREFRAME].description = "wireframe";
+    toggle_infos[TOGGLE_WIREFRAME].glfw_keycode = GLFW_KEY_Z;
+    toggle_infos[TOGGLE_WIREFRAME].is_enabled = false;
+
+    toggle_infos[TOGGLE_FULLBRIGHT].description = "fullbright";
+    toggle_infos[TOGGLE_FULLBRIGHT].glfw_keycode = GLFW_KEY_J;
+    toggle_infos[TOGGLE_FULLBRIGHT].is_enabled = false;
+
+    toggle_infos[TOGGLE_CHUNK_AABB].description = "chunk Borders";
+    toggle_infos[TOGGLE_CHUNK_AABB].glfw_keycode = GLFW_KEY_G;
+    toggle_infos[TOGGLE_CHUNK_AABB].is_enabled = false;
+
+    toggle_infos[TOGGLE_METRICS_UI].description = std::string_view();
+    toggle_infos[TOGGLE_METRICS_UI].glfw_keycode = GLFW_KEY_V;
+    toggle_infos[TOGGLE_METRICS_UI].is_enabled = false;
+
+    toggle_infos[TOGGLE_USE_GAMEPAD].description = "gamepad input";
+    toggle_infos[TOGGLE_USE_GAMEPAD].glfw_keycode = GLFW_KEY_P;
+    toggle_infos[TOGGLE_USE_GAMEPAD].is_enabled = false;
+
+    toggle_infos[TOGGLE_PM_FLIGHT].description = "flight mode";
+    toggle_infos[TOGGLE_PM_FLIGHT].glfw_keycode = GLFW_KEY_F;
+    toggle_infos[TOGGLE_PM_FLIGHT].is_enabled = false;
+
+    globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
+}
+
+void toggles::init_late(void)
+{
+    for(toggle_type i = 0; i < TOGGLE_COUNT; ++i) {
+        if(toggle_infos[i].is_enabled) {
+            globals::dispatcher.trigger(ToggleEnabledEvent { i });
+        }
+        else {
+            globals::dispatcher.trigger(ToggleDisabledEvent { i });
+        }
+    }
+}
+
+bool toggles::get(toggle_type type)
+{
+    if(type < TOGGLE_COUNT) {
+        return toggle_infos[type].is_enabled;
+    }
+    else {
+        return false;
+    }
+}
+
+void toggles::set(toggle_type type, bool value)
+{
+    if(type < TOGGLE_COUNT) {
+        if(value) {
+            toggle_infos[type].is_enabled = true;
+            globals::dispatcher.trigger(ToggleEnabledEvent { type });
+        }
+        else {
+            toggle_infos[type].is_enabled = false;
+            globals::dispatcher.trigger(ToggleDisabledEvent { type });
+        }
+
+        print_toggle_state(toggle_infos[type]);
+    }
+}
diff --git a/src/game/client/toggles.hh b/src/game/client/toggles.hh
new file mode 100644
index 0000000..d051a92
--- /dev/null
+++ b/src/game/client/toggles.hh
@@ -0,0 +1,35 @@
+#pragma once
+
+using toggle_type = unsigned int;
+constexpr static toggle_type TOGGLE_WIREFRAME = 0x0000U;   // Render things in wireframe mode
+constexpr static toggle_type TOGGLE_FULLBRIGHT = 0x0001U;  // Render things without lighting
+constexpr static toggle_type TOGGLE_CHUNK_AABB = 0x0002U;  // Render chunk bounding boxes
+constexpr static toggle_type TOGGLE_METRICS_UI = 0x0003U;  // Render debug metrics overlay
+constexpr static toggle_type TOGGLE_USE_GAMEPAD = 0x0004U; // Use gamepad for player movement
+constexpr static toggle_type TOGGLE_PM_FLIGHT = 0x0005U;   // Enable flight for player movement
+constexpr static std::size_t TOGGLE_COUNT = 0x0006U;
+
+struct ToggleEnabledEvent final {
+    toggle_type type;
+};
+
+struct ToggleDisabledEvent final {
+    toggle_type type;
+};
+
+namespace toggles
+{
+// The value is true whenever the debug
+// toggles manager awaits for a sequenced key
+// to be pressed. During this no input should
+// be processed by any other gameplay system
+extern bool is_sequence_await;
+} // namespace toggles
+
+namespace toggles
+{
+void init(void);
+void init_late(void);
+bool get(toggle_type type);
+void set(toggle_type type, bool value);
+} // namespace toggles
diff --git a/src/game/client/vclient.ico b/src/game/client/vclient.ico
new file mode 100644
index 0000000..5f3ccd2
--- /dev/null
+++ b/src/game/client/vclient.ico
diff --git a/src/game/client/vclient.rc b/src/game/client/vclient.rc
new file mode 100644
index 0000000..0268ca0
--- /dev/null
+++ b/src/game/client/vclient.rc
@@ -0,0 +1 @@
+IDI_ICON1 ICON DISCARDABLE "vclient.ico"
diff --git a/src/game/client/world/CMakeLists.txt b/src/game/client/world/CMakeLists.txt
new file mode 100644
index 0000000..fdf96bf
--- /dev/null
+++ b/src/game/client/world/CMakeLists.txt
@@ -0,0 +1,21 @@
+target_sources(vclient PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_mesher.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_mesher.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_quad.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_renderer.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_renderer.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_vbo.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_visibility.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_visibility.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/outline.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/outline.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/player_target.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/player_target.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/skybox.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/skybox.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_anims.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_anims.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_atlas.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_atlas.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_sounds.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_sounds.hh")
diff --git a/src/game/client/world/chunk_mesher.cc b/src/game/client/world/chunk_mesher.cc
new file mode 100644
index 0000000..5e58760
--- /dev/null
+++ b/src/game/client/world/chunk_mesher.cc
@@ -0,0 +1,450 @@
+#include "client/pch.hh"
+
+#include "client/world/chunk_mesher.hh"
+
+#include "core/math/crc64.hh"
+
+#include "core/threading.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+#include "shared/world/voxel.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+
+#include "client/world/chunk_quad.hh"
+#include "client/world/voxel_atlas.hh"
+
+#include "client/globals.hh"
+#include "client/session.hh"
+
+using QuadBuilder = std::vector<world::ChunkQuad>;
+
+using CachedChunkCoord = unsigned short;
+constexpr static CachedChunkCoord CPOS_ITSELF = 0x0000;
+constexpr static CachedChunkCoord CPOS_NORTH = 0x0001;
+constexpr static CachedChunkCoord CPOS_SOUTH = 0x0002;
+constexpr static CachedChunkCoord CPOS_EAST = 0x0003;
+constexpr static CachedChunkCoord CPOS_WEST = 0x0004;
+constexpr static CachedChunkCoord CPOS_TOP = 0x0005;
+constexpr static CachedChunkCoord CPOS_BOTTOM = 0x0006;
+constexpr static const size_t NUM_CACHED_CPOS = 7;
+
+static const CachedChunkCoord get_cached_cpos(const chunk_pos& pivot, const chunk_pos& cpos)
+{
+    static const CachedChunkCoord nx[3] = { CPOS_WEST, 0, CPOS_EAST };
+    static const CachedChunkCoord ny[3] = { CPOS_BOTTOM, 0, CPOS_TOP };
+    static const CachedChunkCoord nz[3] = { CPOS_NORTH, 0, CPOS_SOUTH };
+
+    if(pivot != cpos) {
+        chunk_pos delta = pivot - cpos;
+        delta[0] = glm::clamp<chunk_pos::value_type>(delta[0], -1, 1);
+        delta[1] = glm::clamp<chunk_pos::value_type>(delta[1], -1, 1);
+        delta[2] = glm::clamp<chunk_pos::value_type>(delta[2], -1, 1);
+
+        if(delta[0]) {
+            return nx[delta[0] + 1];
+        }
+        else if(delta[1]) {
+            return ny[delta[1] + 1];
+        }
+        else {
+            return nz[delta[2] + 1];
+        }
+    }
+
+    return CPOS_ITSELF;
+}
+
+class GL_MeshingTask final : public Task {
+public:
+    explicit GL_MeshingTask(entt::entity entity, const chunk_pos& cpos);
+    virtual ~GL_MeshingTask(void) = default;
+    virtual void process(void) override;
+    virtual void finalize(void) override;
+
+private:
+    bool vis_test(const world::Voxel* voxel, const local_pos& lpos) const;
+    void push_quad_a(const world::Voxel* voxel, const glm::fvec3& pos, const glm::fvec2& size, world::VoxelFace face);
+    void push_quad_v(const world::Voxel* voxel, const glm::fvec3& pos, const glm::fvec2& size, world::VoxelFace face, std::size_t entropy);
+    void make_cube(const world::Voxel* voxel, const local_pos& lpos, world::VoxelVisBits vis, std::size_t entropy);
+    void cache_chunk(const chunk_pos& cpos);
+
+private:
+    std::array<world::VoxelStorage, NUM_CACHED_CPOS> m_cache;
+    std::vector<QuadBuilder> m_quads_b; // blending
+    std::vector<QuadBuilder> m_quads_s; // solid
+    entt::entity m_entity;
+    chunk_pos m_cpos;
+};
+
+GL_MeshingTask::GL_MeshingTask(entt::entity entity, const chunk_pos& cpos)
+{
+    m_entity = entity;
+    m_cpos = cpos;
+
+    cache_chunk(m_cpos);
+    cache_chunk(m_cpos + DIR_NORTH<chunk_pos::value_type>);
+    cache_chunk(m_cpos + DIR_SOUTH<chunk_pos::value_type>);
+    cache_chunk(m_cpos + DIR_EAST<chunk_pos::value_type>);
+    cache_chunk(m_cpos + DIR_WEST<chunk_pos::value_type>);
+    cache_chunk(m_cpos + DIR_DOWN<chunk_pos::value_type>);
+    cache_chunk(m_cpos + DIR_UP<chunk_pos::value_type>);
+}
+
+void GL_MeshingTask::process(void)
+{
+    m_quads_b.resize(world::voxel_atlas::plane_count());
+    m_quads_s.resize(world::voxel_atlas::plane_count());
+
+    const auto& voxels = m_cache.at(CPOS_ITSELF);
+
+    for(std::size_t i = 0; i < CHUNK_VOLUME; ++i) {
+        if(m_status == task_status::CANCELLED) {
+            m_quads_b.clear();
+            m_quads_s.clear();
+            return;
+        }
+
+        const auto lpos = coord::to_local(i);
+        const auto voxel = world::voxel_registry::find(voxels[i]);
+
+        if(voxel == nullptr) {
+            // Either a NULL_VOXEL_ID or something went
+            // horribly wrong and we don't what this is
+            continue;
+        }
+
+        unsigned int vis = 0U;
+
+        if(vis_test(voxel, lpos + DIR_NORTH<local_pos::value_type>)) {
+            vis |= world::VVIS_NORTH;
+        }
+
+        if(vis_test(voxel, lpos + DIR_SOUTH<local_pos::value_type>)) {
+            vis |= world::VVIS_SOUTH;
+        }
+
+        if(vis_test(voxel, lpos + DIR_EAST<local_pos::value_type>)) {
+            vis |= world::VVIS_EAST;
+        }
+
+        if(vis_test(voxel, lpos + DIR_WEST<local_pos::value_type>)) {
+            vis |= world::VVIS_WEST;
+        }
+
+        if(vis_test(voxel, lpos + DIR_UP<local_pos::value_type>)) {
+            vis |= world::VVIS_UP;
+        }
+
+        if(vis_test(voxel, lpos + DIR_DOWN<local_pos::value_type>)) {
+            vis |= world::VVIS_DOWN;
+        }
+
+        const auto vpos = coord::to_voxel(m_cpos, lpos);
+        const auto entropy_src = vpos[0] * vpos[1] * vpos[2];
+        const auto entropy = math::crc64(&entropy_src, sizeof(entropy_src));
+
+        // FIXME: handle different voxel types
+        make_cube(voxel, lpos, world::VoxelVisBits(vis), entropy);
+    }
+}
+
+void GL_MeshingTask::finalize(void)
+{
+    if(!globals::dimension || !globals::dimension->chunks.valid(m_entity)) {
+        // We either disconnected or something
+        // else happened that invalidated the entity
+        return;
+    }
+
+    auto& component = globals::dimension->chunks.emplace_or_replace<world::ChunkMesh>(m_entity);
+
+    const std::size_t plane_count_nb = m_quads_s.size();
+    const std::size_t plane_count_b = m_quads_b.size();
+
+    bool has_no_submeshes_b = true;
+    bool has_no_submeshes_nb = true;
+
+    component.quad_nb.resize(plane_count_nb);
+    component.quad_b.resize(plane_count_b);
+
+    for(std::size_t plane = 0; plane < plane_count_nb; ++plane) {
+        auto& builder = m_quads_s[plane];
+        auto& buffer = component.quad_nb[plane];
+
+        if(builder.empty()) {
+            if(buffer.handle) {
+                glDeleteBuffers(1, &buffer.handle);
+                buffer.handle = 0;
+                buffer.size = 0;
+            }
+        }
+        else {
+            if(!buffer.handle) {
+                glGenBuffers(1, &buffer.handle);
+            }
+
+            glBindBuffer(GL_ARRAY_BUFFER, buffer.handle);
+            glBufferData(GL_ARRAY_BUFFER, sizeof(world::ChunkQuad) * builder.size(), builder.data(), GL_STATIC_DRAW);
+            buffer.size = builder.size();
+            has_no_submeshes_nb = false;
+        }
+    }
+
+    for(std::size_t plane = 0; plane < plane_count_b; ++plane) {
+        auto& builder = m_quads_b[plane];
+        auto& buffer = component.quad_b[plane];
+
+        if(builder.empty()) {
+            if(buffer.handle) {
+                glDeleteBuffers(1, &buffer.handle);
+                buffer.handle = 0;
+                buffer.size = 0;
+            }
+        }
+        else {
+            if(!buffer.handle) {
+                glGenBuffers(1, &buffer.handle);
+            }
+
+            glBindBuffer(GL_ARRAY_BUFFER, buffer.handle);
+            glBufferData(GL_ARRAY_BUFFER, sizeof(world::ChunkQuad) * builder.size(), builder.data(), GL_STATIC_DRAW);
+            buffer.size = builder.size();
+            has_no_submeshes_b = false;
+        }
+    }
+
+    if(has_no_submeshes_b && has_no_submeshes_nb) {
+        globals::dimension->chunks.remove<world::ChunkMesh>(m_entity);
+    }
+}
+
+bool GL_MeshingTask::vis_test(const world::Voxel* voxel, const local_pos& lpos) const
+{
+    const auto pvpos = coord::to_voxel(m_cpos, lpos);
+    const auto pcpos = coord::to_chunk(pvpos);
+    const auto plpos = coord::to_local(pvpos);
+    const auto index = coord::to_index(plpos);
+
+    const auto cached_cpos = get_cached_cpos(m_cpos, pcpos);
+    const auto& voxels = m_cache.at(cached_cpos);
+    const auto neighbour = world::voxel_registry::find(voxels[index]);
+
+    bool result;
+
+    if(neighbour == nullptr) {
+        result = true;
+    }
+    else if(neighbour == voxel) {
+        result = false;
+    }
+    else if(neighbour->get_render_mode() != voxel->get_render_mode()) {
+        result = true;
+    }
+    else {
+        result = false;
+    }
+
+    return result;
+}
+
+void GL_MeshingTask::push_quad_a(const world::Voxel* voxel, const glm::fvec3& pos, const glm::fvec2& size, world::VoxelFace face)
+{
+    auto cached_offset = voxel->get_cached_face_offset(face);
+    auto cached_plane = voxel->get_cached_face_plane(face);
+    auto& textures = voxel->get_face_textures(face);
+
+    switch(voxel->get_render_mode()) {
+        case world::VRENDER_OPAQUE:
+            m_quads_s[cached_plane].push_back(make_chunk_quad(pos, size, face, cached_offset, textures.size()));
+            break;
+
+        case world::VRENDER_BLEND:
+            m_quads_b[cached_plane].push_back(make_chunk_quad(pos, size, face, cached_offset, textures.size()));
+            break;
+    }
+}
+
+void GL_MeshingTask::push_quad_v(const world::Voxel* voxel, const glm::fvec3& pos, const glm::fvec2& size, world::VoxelFace face,
+    std::size_t entropy)
+{
+    auto cached_offset = voxel->get_cached_face_offset(face);
+    auto cached_plane = voxel->get_cached_face_plane(face);
+    auto& textures = voxel->get_face_textures(face);
+    auto index = entropy % textures.size();
+
+    switch(voxel->get_render_mode()) {
+        case world::VRENDER_OPAQUE:
+            m_quads_s[cached_plane].push_back(make_chunk_quad(pos, size, face, cached_offset + index, 0));
+            break;
+
+        case world::VRENDER_BLEND:
+            m_quads_b[cached_plane].push_back(make_chunk_quad(pos, size, face, cached_offset + index, 0));
+            break;
+    }
+}
+
+void GL_MeshingTask::make_cube(const world::Voxel* voxel, const local_pos& lpos, world::VoxelVisBits vis, std::size_t entropy)
+{
+    const glm::fvec3 fpos = glm::fvec3(lpos);
+    const glm::fvec2 fsize = glm::fvec2(1.0f, 1.0f);
+
+    if(voxel->is_animated()) {
+        if(vis & world::VVIS_NORTH) {
+            push_quad_a(voxel, fpos, fsize, world::VFACE_NORTH);
+        }
+
+        if(vis & world::VVIS_SOUTH) {
+            push_quad_a(voxel, fpos, fsize, world::VFACE_SOUTH);
+        }
+
+        if(vis & world::VVIS_EAST) {
+            push_quad_a(voxel, fpos, fsize, world::VFACE_EAST);
+        }
+
+        if(vis & world::VVIS_WEST) {
+            push_quad_a(voxel, fpos, fsize, world::VFACE_WEST);
+        }
+
+        if(vis & world::VVIS_UP) {
+            push_quad_a(voxel, fpos, fsize, world::VFACE_TOP);
+        }
+
+        if(vis & world::VVIS_DOWN) {
+            push_quad_a(voxel, fpos, fsize, world::VFACE_BOTTOM);
+        }
+    }
+    else {
+        if(vis & world::VVIS_NORTH) {
+            push_quad_v(voxel, fpos, fsize, world::VFACE_NORTH, entropy);
+        }
+
+        if(vis & world::VVIS_SOUTH) {
+            push_quad_v(voxel, fpos, fsize, world::VFACE_SOUTH, entropy);
+        }
+
+        if(vis & world::VVIS_EAST) {
+            push_quad_v(voxel, fpos, fsize, world::VFACE_EAST, entropy);
+        }
+
+        if(vis & world::VVIS_WEST) {
+            push_quad_v(voxel, fpos, fsize, world::VFACE_WEST, entropy);
+        }
+
+        if(vis & world::VVIS_UP) {
+            push_quad_v(voxel, fpos, fsize, world::VFACE_TOP, entropy);
+        }
+
+        if(vis & world::VVIS_DOWN) {
+            push_quad_v(voxel, fpos, fsize, world::VFACE_BOTTOM, entropy);
+        }
+    }
+}
+
+void GL_MeshingTask::cache_chunk(const chunk_pos& cpos)
+{
+    const auto index = get_cached_cpos(m_cpos, cpos);
+
+    if(const auto chunk = globals::dimension->find_chunk(cpos)) {
+        m_cache[index] = chunk->get_voxels();
+        return;
+    }
+}
+
+// Bogus internal flag component
+struct NeedsMeshingComponent final {};
+
+static void on_chunk_create(const world::ChunkCreateEvent& event)
+{
+    const std::array<chunk_pos, 6> neighbours = {
+        event.cpos + DIR_NORTH<chunk_pos::value_type>,
+        event.cpos + DIR_SOUTH<chunk_pos::value_type>,
+        event.cpos + DIR_EAST<chunk_pos::value_type>,
+        event.cpos + DIR_WEST<chunk_pos::value_type>,
+        event.cpos + DIR_UP<chunk_pos::value_type>,
+        event.cpos + DIR_DOWN<chunk_pos::value_type>,
+    };
+
+    globals::dimension->chunks.emplace_or_replace<NeedsMeshingComponent>(event.chunk->get_entity());
+
+    for(const chunk_pos& cpos : neighbours) {
+        if(const world::Chunk* chunk = globals::dimension->find_chunk(cpos)) {
+            globals::dimension->chunks.emplace_or_replace<NeedsMeshingComponent>(chunk->get_entity());
+            continue;
+        }
+    }
+}
+
+static void on_chunk_update(const world::ChunkUpdateEvent& event)
+{
+    const std::array<chunk_pos, 6> neighbours = {
+        event.cpos + DIR_NORTH<chunk_pos::value_type>,
+        event.cpos + DIR_SOUTH<chunk_pos::value_type>,
+        event.cpos + DIR_EAST<chunk_pos::value_type>,
+        event.cpos + DIR_WEST<chunk_pos::value_type>,
+        event.cpos + DIR_UP<chunk_pos::value_type>,
+        event.cpos + DIR_DOWN<chunk_pos::value_type>,
+    };
+
+    globals::dimension->chunks.emplace_or_replace<NeedsMeshingComponent>(event.chunk->get_entity());
+
+    for(const chunk_pos& cpos : neighbours) {
+        if(const world::Chunk* chunk = globals::dimension->find_chunk(cpos)) {
+            globals::dimension->chunks.emplace_or_replace<NeedsMeshingComponent>(chunk->get_entity());
+            continue;
+        }
+    }
+}
+
+static void on_voxel_set(const world::VoxelSetEvent& event)
+{
+    globals::dimension->chunks.emplace_or_replace<NeedsMeshingComponent>(event.chunk->get_entity());
+
+    std::vector<chunk_pos> neighbours;
+
+    for(int dim = 0; dim < 3; dim += 1) {
+        chunk_pos offset = chunk_pos(0, 0, 0);
+        offset[dim] = 1;
+
+        if(event.lpos[dim] == 0) {
+            neighbours.push_back(event.cpos - offset);
+            continue;
+        }
+
+        if(event.lpos[dim] == (CHUNK_SIZE - 1)) {
+            neighbours.push_back(event.cpos + offset);
+            continue;
+        }
+    }
+
+    for(const chunk_pos& cpos : neighbours) {
+        if(const world::Chunk* chunk = globals::dimension->find_chunk(cpos)) {
+            globals::dimension->chunks.emplace_or_replace<NeedsMeshingComponent>(chunk->get_entity());
+            continue;
+        }
+    }
+}
+
+void world::chunk_mesher::init(void)
+{
+    globals::dispatcher.sink<ChunkCreateEvent>().connect<&on_chunk_create>();
+    globals::dispatcher.sink<ChunkUpdateEvent>().connect<&on_chunk_update>();
+    globals::dispatcher.sink<VoxelSetEvent>().connect<&on_voxel_set>();
+}
+
+void world::chunk_mesher::shutdown(void)
+{
+}
+
+void world::chunk_mesher::update(void)
+{
+    if(session::is_ingame()) {
+        const auto group = globals::dimension->chunks.group<NeedsMeshingComponent>(entt::get<ChunkComponent>);
+        for(const auto [entity, chunk] : group.each()) {
+            globals::dimension->chunks.remove<NeedsMeshingComponent>(entity);
+            threading::submit<GL_MeshingTask>(entity, chunk.cpos);
+        }
+    }
+}
diff --git a/src/game/client/world/chunk_mesher.hh b/src/game/client/world/chunk_mesher.hh
new file mode 100644
index 0000000..cb0c7c5
--- /dev/null
+++ b/src/game/client/world/chunk_mesher.hh
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "client/world/chunk_vbo.hh"
+
+namespace world
+{
+struct ChunkMesh final {
+    std::vector<ChunkVBO> quad_nb;
+    std::vector<ChunkVBO> quad_b;
+};
+} // namespace world
+
+namespace world::chunk_mesher
+{
+void init(void);
+void shutdown(void);
+void update(void);
+} // namespace world::chunk_mesher
diff --git a/src/game/client/world/chunk_quad.hh b/src/game/client/world/chunk_quad.hh
new file mode 100644
index 0000000..01ed5f2
--- /dev/null
+++ b/src/game/client/world/chunk_quad.hh
@@ -0,0 +1,41 @@
+#pragma once
+
+#include "core/math/constexpr.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+namespace world
+{
+// [0] XXXXXXXXYYYYYYYYZZZZZZZZWWWWHHHH
+// [1] FFFFTTTTTTTTTTTAAAAA------------
+using ChunkQuad = std::array<std::uint32_t, 2>;
+} // namespace world
+
+namespace world
+{
+constexpr inline static ChunkQuad make_chunk_quad(const glm::fvec3& position, const glm::fvec2& size, VoxelFace face, std::size_t texture,
+    std::size_t frames)
+{
+    ChunkQuad result = {};
+    result[0] = 0x00000000;
+    result[1] = 0x00000000;
+
+    // [0] XXXXXXXXYYYYYYYYZZZZZZZZ--------
+    result[0] |= (0x000000FFU & static_cast<std::uint32_t>(position.x * 16.0f)) << 24U;
+    result[0] |= (0x000000FFU & static_cast<std::uint32_t>(position.y * 16.0f)) << 16U;
+    result[0] |= (0x000000FFU & static_cast<std::uint32_t>(position.z * 16.0f)) << 8U;
+
+    // [0] ------------------------WWWWHHHH
+    result[0] |= (0x0000000FU & static_cast<std::uint32_t>(size.x * 16.0f - 1.0f)) << 4U;
+    result[0] |= (0x0000000FU & static_cast<std::uint32_t>(size.y * 16.0f - 1.0f));
+
+    // [1] FFFF----------------------------
+    result[1] |= (0x0000000FU & static_cast<std::uint32_t>(face)) << 28U;
+
+    // [1] ----TTTTTTTTTTTAAAAA------------
+    result[1] |= (0x000007FFU & static_cast<std::uint32_t>(texture)) << 17U;
+    result[1] |= (0x0000001FU & static_cast<std::uint32_t>(frames)) << 12U;
+
+    return result;
+}
+} // namespace world
diff --git a/src/game/client/world/chunk_renderer.cc b/src/game/client/world/chunk_renderer.cc
new file mode 100644
index 0000000..573d1b7
--- /dev/null
+++ b/src/game/client/world/chunk_renderer.cc
@@ -0,0 +1,205 @@
+#include "client/pch.hh"
+
+#include "client/world/chunk_renderer.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+
+#include "shared/coord.hh"
+
+#include "client/entity/camera.hh"
+
+#include "client/gui/settings.hh"
+
+#include "client/world/chunk_mesher.hh"
+#include "client/world/chunk_quad.hh"
+#include "client/world/outline.hh"
+#include "client/world/skybox.hh"
+#include "client/world/voxel_anims.hh"
+#include "client/world/voxel_atlas.hh"
+
+#include "client/game.hh"
+#include "client/globals.hh"
+#include "client/program.hh"
+#include "client/toggles.hh"
+
+// ONLY TOUCH THESE IF THE RESPECTIVE SHADER
+// VARIANT MACRO DECLARATIONS LAYOUT CHANGED AS WELL
+constexpr static unsigned int WORLD_CURVATURE = 0U;
+constexpr static unsigned int WORLD_FOG = 1U;
+
+static config::Boolean depth_sort_chunks(true);
+
+static GL_Program quad_program;
+static std::size_t u_quad_vproj_matrix;
+static std::size_t u_quad_world_position;
+static std::size_t u_quad_timings;
+static std::size_t u_quad_fog_color;
+static std::size_t u_quad_view_distance;
+static std::size_t u_quad_textures;
+static GLuint quad_vaobj;
+static GLuint quad_vbo;
+
+void world::chunk_renderer::init(void)
+{
+    globals::client_config.add_value("chunk_renderer.depth_sort_chunks", depth_sort_chunks);
+
+    settings::add_checkbox(5, depth_sort_chunks, settings_location::VIDEO, "chunk_renderer.depth_sort_chunks", false);
+
+    if(!quad_program.setup("shaders/chunk_quad.vert", "shaders/chunk_quad.frag")) {
+        spdlog::critical("chunk_renderer: quad_program: setup failed");
+        std::terminate();
+    }
+
+    u_quad_vproj_matrix = quad_program.add_uniform("u_ViewProjMatrix");
+    u_quad_world_position = quad_program.add_uniform("u_WorldPosition");
+    u_quad_timings = quad_program.add_uniform("u_Timings");
+    u_quad_fog_color = quad_program.add_uniform("u_FogColor");
+    u_quad_view_distance = quad_program.add_uniform("u_ViewDistance");
+    u_quad_textures = quad_program.add_uniform("u_Textures");
+
+    const glm::fvec3 vertices[4] = {
+        glm::fvec3(1.0f, 0.0f, 1.0f),
+        glm::fvec3(1.0f, 0.0f, 0.0f),
+        glm::fvec3(0.0f, 0.0f, 1.0f),
+        glm::fvec3(0.0f, 0.0f, 0.0f),
+    };
+
+    glGenVertexArrays(1, &quad_vaobj);
+    glBindVertexArray(quad_vaobj);
+
+    glGenBuffers(1, &quad_vbo);
+    glBindBuffer(GL_ARRAY_BUFFER, quad_vbo);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+
+    glEnableVertexAttribArray(0);
+    glVertexAttribDivisor(0, 0);
+    glVertexAttribPointer(0, 3, GL_FLOAT, false, sizeof(glm::fvec3), nullptr);
+}
+
+void world::chunk_renderer::shutdown(void)
+{
+    glDeleteBuffers(1, &quad_vbo);
+    glDeleteVertexArrays(1, &quad_vaobj);
+    quad_program.destroy();
+}
+
+void world::chunk_renderer::render(void)
+{
+    glEnable(GL_DEPTH_TEST);
+    glDepthFunc(GL_LEQUAL);
+    glLineWidth(1.0f);
+
+    if(toggles::get(TOGGLE_WIREFRAME)) {
+        glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+    }
+    else {
+        glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+    }
+
+    quad_program.set_variant_vert(WORLD_CURVATURE, client_game::world_curvature.get_value());
+    quad_program.set_variant_vert(WORLD_FOG, client_game::fog_mode.get_value());
+    quad_program.set_variant_frag(WORLD_FOG, client_game::fog_mode.get_value());
+
+    if(!quad_program.update()) {
+        spdlog::critical("chunk_renderer: quad_program: update failed");
+        quad_program.destroy();
+        std::terminate();
+    }
+
+    GLuint timings[3];
+    timings[0] = static_cast<GLuint>(globals::window_frametime);
+    timings[1] = static_cast<GLuint>(globals::window_frametime_avg);
+    timings[2] = static_cast<GLuint>(world::voxel_anims::frame);
+
+    const auto group = globals::dimension->chunks.group<ChunkComponent>(entt::get<world::ChunkMesh>);
+
+    if(depth_sort_chunks.get_value()) {
+        // FIXME: speed! sorting every frame doesn't look
+        // like a good idea. Can we store the group elsewhere and
+        // still have all the up-to-date chunk things inside?
+        group.sort([](entt::entity ea, entt::entity eb) {
+            const auto dir_a = globals::dimension->chunks.get<ChunkComponent>(ea).cpos - entity::camera::position_chunk;
+            const auto dir_b = globals::dimension->chunks.get<ChunkComponent>(eb).cpos - entity::camera::position_chunk;
+
+            const auto da = dir_a[0] * dir_a[0] + dir_a[1] * dir_a[1] + dir_a[2] * dir_a[2];
+            const auto db = dir_b[0] * dir_b[0] + dir_b[1] * dir_b[1] + dir_b[2] * dir_b[2];
+
+            return da > db;
+        });
+    }
+
+    for(std::size_t plane_id = 0; plane_id < world::voxel_atlas::plane_count(); ++plane_id) {
+        glActiveTexture(GL_TEXTURE0);
+        glBindTexture(GL_TEXTURE_2D_ARRAY, world::voxel_atlas::plane_texture(plane_id));
+
+        glBindVertexArray(quad_vaobj);
+
+        glUseProgram(quad_program.handle);
+        glUniformMatrix4fv(quad_program.uniforms[u_quad_vproj_matrix].location, 1, false, glm::value_ptr(entity::camera::matrix));
+        glUniform3uiv(quad_program.uniforms[u_quad_timings].location, 1, timings);
+        glUniform4fv(quad_program.uniforms[u_quad_fog_color].location, 1, glm::value_ptr(world::skybox::fog_color));
+        glUniform1f(quad_program.uniforms[u_quad_view_distance].location,
+            static_cast<GLfloat>(entity::camera::view_distance.get_value() * CHUNK_SIZE));
+        glUniform1i(quad_program.uniforms[u_quad_textures].location, 0); // GL_TEXTURE0
+
+        glDisable(GL_BLEND);
+
+        glEnable(GL_CULL_FACE);
+        glCullFace(GL_BACK);
+        glFrontFace(GL_CCW);
+
+        for(const auto [entity, chunk, mesh] : group.each()) {
+            if(plane_id < mesh.quad_nb.size() && mesh.quad_nb[plane_id].handle && mesh.quad_nb[plane_id].size) {
+                const auto wpos = coord::to_fvec3(chunk.cpos - entity::camera::position_chunk);
+                glUniform3fv(quad_program.uniforms[u_quad_world_position].location, 1, glm::value_ptr(wpos));
+
+                glBindBuffer(GL_ARRAY_BUFFER, mesh.quad_nb[plane_id].handle);
+
+                glEnableVertexAttribArray(1);
+                glVertexAttribDivisor(1, 1);
+                glVertexAttribIPointer(1, 2, GL_UNSIGNED_INT, sizeof(ChunkQuad), nullptr);
+
+                glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, static_cast<GLsizei>(mesh.quad_nb[plane_id].size));
+
+                globals::num_drawcalls += 1;
+                globals::num_triangles += 2 * mesh.quad_nb[plane_id].size;
+            }
+        }
+
+        glEnable(GL_BLEND);
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+        for(const auto [entity, chunk, mesh] : group.each()) {
+            if(plane_id < mesh.quad_b.size() && mesh.quad_b[plane_id].handle && mesh.quad_b[plane_id].size) {
+                const auto wpos = coord::to_fvec3(chunk.cpos - entity::camera::position_chunk);
+                glUniform3fv(quad_program.uniforms[u_quad_world_position].location, 1, glm::value_ptr(wpos));
+
+                glBindBuffer(GL_ARRAY_BUFFER, mesh.quad_b[plane_id].handle);
+
+                glEnableVertexAttribArray(1);
+                glVertexAttribDivisor(1, 1);
+                glVertexAttribIPointer(1, 2, GL_UNSIGNED_INT, sizeof(ChunkQuad), nullptr);
+
+                glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, static_cast<GLsizei>(mesh.quad_b[plane_id].size));
+
+                globals::num_drawcalls += 1;
+                globals::num_triangles += 2 * mesh.quad_b[plane_id].size;
+            }
+        }
+    }
+
+    if(toggles::get(TOGGLE_CHUNK_AABB)) {
+        world::outline::prepare();
+
+        for(const auto [entity, chunk, mesh] : group.each()) {
+            const auto size = glm::fvec3(CHUNK_SIZE, CHUNK_SIZE, CHUNK_SIZE);
+            world::outline::cube(chunk.cpos, glm::fvec3(0.0f, 0.0f, 0.0f), size, 1.0f, glm::fvec4(1.0f, 1.0f, 0.0f, 1.0f));
+        }
+    }
+}
diff --git a/src/game/client/world/chunk_renderer.hh b/src/game/client/world/chunk_renderer.hh
new file mode 100644
index 0000000..2b73225
--- /dev/null
+++ b/src/game/client/world/chunk_renderer.hh
@@ -0,0 +1,8 @@
+#pragma once
+
+namespace world::chunk_renderer
+{
+void init(void);
+void shutdown(void);
+void render(void);
+} // namespace world::chunk_renderer
diff --git a/src/game/client/world/chunk_vbo.hh b/src/game/client/world/chunk_vbo.hh
new file mode 100644
index 0000000..175b34f
--- /dev/null
+++ b/src/game/client/world/chunk_vbo.hh
@@ -0,0 +1,22 @@
+#pragma once
+
+namespace world
+{
+class ChunkVBO final {
+public:
+    std::size_t size;
+    GLuint handle;
+
+public:
+    inline ~ChunkVBO(void)
+    {
+        // The ChunkVBO structure is meant to be a part
+        // of the ChunkMesh component within the EnTT registry;
+        // When the registry is cleaned or a chunk is removed, components
+        // are expected to be safely disposed of so we need a destructor;
+        if(handle) {
+            glDeleteBuffers(1, &handle);
+        }
+    }
+};
+} // namespace world
diff --git a/src/game/client/world/chunk_visibility.cc b/src/game/client/world/chunk_visibility.cc
new file mode 100644
index 0000000..871c04b
--- /dev/null
+++ b/src/game/client/world/chunk_visibility.cc
@@ -0,0 +1,90 @@
+#include "client/pch.hh"
+
+#include "client/world/chunk_visibility.hh"
+
+#include "core/config/number.hh"
+
+#include "core/math/vectors.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/chunk_aabb.hh"
+#include "shared/world/dimension.hh"
+
+#include "shared/protocol.hh"
+
+#include "client/entity/camera.hh"
+
+#include "client/globals.hh"
+#include "client/session.hh"
+
+// Sending a somewhat large amount of network packets
+// can easily overwhelm both client, server and the network
+// channel created between the two. To prevent this from happening
+// we throttle the client's ever increasing itch for new chunks
+constexpr static unsigned int MAX_CHUNKS_REQUESTS_PER_FRAME = 16U;
+
+static world::ChunkAABB current_view_box;
+static world::ChunkAABB previous_view_box;
+static std::vector<chunk_pos> requests;
+
+static void update_requests(void)
+{
+    requests.clear();
+
+    for(auto cx = current_view_box.min.x; cx != current_view_box.max.x; cx += 1)
+        for(auto cy = current_view_box.min.y; cy != current_view_box.max.y; cy += 1)
+            for(auto cz = current_view_box.min.z; cz != current_view_box.max.z; cz += 1) {
+                auto cpos = chunk_pos(cx, cy, cz);
+
+                if(!globals::dimension->find_chunk(cpos)) {
+                    requests.push_back(cpos);
+                }
+            }
+
+    std::sort(requests.begin(), requests.end(), [](const chunk_pos& cpos_a, const chunk_pos& cpos_b) {
+        auto da = math::distance2(cpos_a, entity::camera::position_chunk);
+        auto db = math::distance2(cpos_b, entity::camera::position_chunk);
+        return da > db;
+    });
+}
+
+void world::chunk_visibility::update_late(void)
+{
+    current_view_box.min = entity::camera::position_chunk - static_cast<chunk_pos::value_type>(entity::camera::view_distance.get_value());
+    current_view_box.max = entity::camera::position_chunk + static_cast<chunk_pos::value_type>(entity::camera::view_distance.get_value());
+
+    if(!session::is_ingame()) {
+        // This makes sure the previous view box
+        // is always different from the current one
+        previous_view_box.min = chunk_pos(INT32_MIN, INT32_MIN, INT32_MIN);
+        previous_view_box.max = chunk_pos(INT32_MAX, INT32_MAX, INT32_MAX);
+        return;
+    }
+
+    if((current_view_box.min != previous_view_box.min) || (current_view_box.max != previous_view_box.max)) {
+        update_requests();
+    }
+
+    for(unsigned int i = 0U; i < MAX_CHUNKS_REQUESTS_PER_FRAME; ++i) {
+        if(requests.empty()) {
+            // Done sending requests
+            break;
+        }
+
+        protocol::RequestChunk packet;
+        packet.cpos = requests.back();
+        protocol::send(session::peer, protocol::encode(packet));
+
+        requests.pop_back();
+    }
+
+    auto view = globals::dimension->chunks.view<ChunkComponent>();
+
+    for(const auto [entity, chunk] : view.each()) {
+        if(!current_view_box.contains(chunk.cpos)) {
+            globals::dimension->remove_chunk(entity);
+        }
+    }
+
+    previous_view_box = current_view_box;
+}
diff --git a/src/game/client/world/chunk_visibility.hh b/src/game/client/world/chunk_visibility.hh
new file mode 100644
index 0000000..8d1f3cd
--- /dev/null
+++ b/src/game/client/world/chunk_visibility.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace world::chunk_visibility
+{
+void update_late(void);
+} // namespace world::chunk_visibility
diff --git a/src/game/client/world/outline.cc b/src/game/client/world/outline.cc
new file mode 100644
index 0000000..763debf
--- /dev/null
+++ b/src/game/client/world/outline.cc
@@ -0,0 +1,150 @@
+#include "client/pch.hh"
+
+#include "client/world/outline.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+
+#include "shared/coord.hh"
+
+#include "client/entity/camera.hh"
+
+#include "client/const.hh"
+#include "client/game.hh"
+#include "client/program.hh"
+
+// ONLY TOUCH THESE IF THE RESPECTIVE SHADER
+// VARIANT MACRO DECLARATIONS LAYOUT CHANGED AS WELL
+constexpr static unsigned int WORLD_CURVATURE = 0U;
+
+static GL_Program program;
+static std::size_t u_vpmatrix;
+static std::size_t u_worldpos;
+static std::size_t u_viewdist;
+static std::size_t u_modulate;
+static std::size_t u_scale;
+
+static GLuint vaobj;
+static GLuint cube_vbo;
+static GLuint line_vbo;
+
+void world::outline::init(void)
+{
+    if(!program.setup("shaders/outline.vert", "shaders/outline.frag")) {
+        spdlog::critical("outline: program setup failed");
+        std::terminate();
+    }
+
+    u_vpmatrix = program.add_uniform("u_ViewProjMatrix");
+    u_worldpos = program.add_uniform("u_WorldPosition");
+    u_viewdist = program.add_uniform("u_ViewDistance");
+    u_modulate = program.add_uniform("u_Modulate");
+    u_scale = program.add_uniform("u_Scale");
+
+    const glm::fvec3 cube_vertices[24] = {
+        glm::fvec3(0.0f, 0.0f, 0.0f),
+        glm::fvec3(0.0f, 1.0f, 0.0f),
+        glm::fvec3(0.0f, 1.0f, 0.0f),
+        glm::fvec3(1.0f, 1.0f, 0.0f),
+        glm::fvec3(1.0f, 1.0f, 0.0f),
+        glm::fvec3(1.0f, 0.0f, 0.0f),
+        glm::fvec3(1.0f, 0.0f, 0.0f),
+        glm::fvec3(0.0f, 0.0f, 0.0f),
+
+        glm::fvec3(0.0f, 0.0f, 1.0f),
+        glm::fvec3(0.0f, 1.0f, 1.0f),
+        glm::fvec3(0.0f, 1.0f, 1.0f),
+        glm::fvec3(1.0f, 1.0f, 1.0f),
+        glm::fvec3(1.0f, 1.0f, 1.0f),
+        glm::fvec3(1.0f, 0.0f, 1.0f),
+        glm::fvec3(1.0f, 0.0f, 1.0f),
+        glm::fvec3(0.0f, 0.0f, 1.0f),
+
+        glm::fvec3(0.0f, 0.0f, 0.0f),
+        glm::fvec3(0.0f, 0.0f, 1.0f),
+        glm::fvec3(0.0f, 1.0f, 0.0f),
+        glm::fvec3(0.0f, 1.0f, 1.0f),
+        glm::fvec3(1.0f, 0.0f, 0.0f),
+        glm::fvec3(1.0f, 0.0f, 1.0f),
+        glm::fvec3(1.0f, 1.0f, 0.0f),
+        glm::fvec3(1.0f, 1.0f, 1.0f),
+    };
+
+    glGenBuffers(1, &cube_vbo);
+    glBindBuffer(GL_ARRAY_BUFFER, cube_vbo);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(cube_vertices), cube_vertices, GL_STATIC_DRAW);
+
+    const glm::fvec3 line_vertices[2] = {
+        glm::fvec3(0.0f, 0.0f, 0.0f),
+        glm::fvec3(1.0f, 1.0f, 1.0f),
+    };
+
+    glGenBuffers(1, &line_vbo);
+    glBindBuffer(GL_ARRAY_BUFFER, line_vbo);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(line_vertices), line_vertices, GL_STATIC_DRAW);
+
+    glGenVertexArrays(1, &vaobj);
+
+    glBindVertexArray(vaobj);
+    glEnableVertexAttribArray(0);
+    glVertexAttribDivisor(0, 0);
+}
+
+void world::outline::shutdown(void)
+{
+    glDeleteVertexArrays(1, &vaobj);
+    glDeleteBuffers(1, &line_vbo);
+    glDeleteBuffers(1, &cube_vbo);
+    program.destroy();
+}
+
+void world::outline::prepare(void)
+{
+    program.set_variant_vert(WORLD_CURVATURE, client_game::world_curvature.get_value());
+
+    if(!program.update()) {
+        spdlog::critical("outline_renderer: program update failed");
+        std::terminate();
+    }
+
+    glDisable(GL_CULL_FACE);
+    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+
+    glUseProgram(program.handle);
+    glUniformMatrix4fv(program.uniforms[u_vpmatrix].location, 1, false, glm::value_ptr(entity::camera::matrix));
+    glUniform1f(program.uniforms[u_viewdist].location, static_cast<GLfloat>(CHUNK_SIZE * entity::camera::view_distance.get_value()));
+
+    glBindVertexArray(vaobj);
+    glEnableVertexAttribArray(0);
+    glVertexAttribDivisor(0, 0);
+}
+
+void world::outline::cube(const chunk_pos& cpos, const glm::fvec3& fpos, const glm::fvec3& size, float thickness, const glm::fvec4& color)
+{
+    auto patch_cpos = cpos - entity::camera::position_chunk;
+
+    glLineWidth(thickness);
+
+    glUniform3fv(program.uniforms[u_worldpos].location, 1, glm::value_ptr(coord::to_fvec3(patch_cpos, fpos)));
+    glUniform4fv(program.uniforms[u_modulate].location, 1, glm::value_ptr(color));
+    glUniform3fv(program.uniforms[u_scale].location, 1, glm::value_ptr(size));
+
+    glBindBuffer(GL_ARRAY_BUFFER, cube_vbo);
+    glVertexAttribPointer(0, 3, GL_FLOAT, false, sizeof(glm::fvec3), nullptr);
+    glDrawArrays(GL_LINES, 0, 24);
+}
+
+void world::outline::line(const chunk_pos& cpos, const glm::fvec3& fpos, const glm::fvec3& size, float thickness, const glm::fvec4& color)
+{
+    auto patch_cpos = cpos - entity::camera::position_chunk;
+
+    glLineWidth(thickness);
+
+    glUniform3fv(program.uniforms[u_worldpos].location, 1, glm::value_ptr(coord::to_fvec3(patch_cpos, fpos)));
+    glUniform4fv(program.uniforms[u_modulate].location, 1, glm::value_ptr(color));
+    glUniform3fv(program.uniforms[u_scale].location, 1, glm::value_ptr(size));
+
+    glBindBuffer(GL_ARRAY_BUFFER, line_vbo);
+    glVertexAttribPointer(0, 3, GL_FLOAT, false, sizeof(glm::fvec3), nullptr);
+    glDrawArrays(GL_LINES, 0, 2);
+}
diff --git a/src/game/client/world/outline.hh b/src/game/client/world/outline.hh
new file mode 100644
index 0000000..2456a32
--- /dev/null
+++ b/src/game/client/world/outline.hh
@@ -0,0 +1,16 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world::outline
+{
+void init(void);
+void shutdown(void);
+void prepare(void);
+} // namespace world::outline
+
+namespace world::outline
+{
+void cube(const chunk_pos& cpos, const glm::fvec3& fpos, const glm::fvec3& size, float thickness, const glm::fvec4& color);
+void line(const chunk_pos& cpos, const glm::fvec3& fpos, const glm::fvec3& size, float thickness, const glm::fvec4& color);
+} // namespace world::outline
diff --git a/src/game/client/world/player_target.cc b/src/game/client/world/player_target.cc
new file mode 100644
index 0000000..5969381
--- /dev/null
+++ b/src/game/client/world/player_target.cc
@@ -0,0 +1,64 @@
+#include "client/pch.hh"
+
+#include "client/world/player_target.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/ray_dda.hh"
+
+#include "shared/coord.hh"
+
+#include "client/entity/camera.hh"
+#include "client/world/outline.hh"
+
+#include "client/game.hh"
+#include "client/globals.hh"
+#include "client/session.hh"
+
+constexpr static float MAX_REACH = 16.0f;
+
+voxel_pos world::player_target::coord;
+voxel_pos world::player_target::normal;
+const world::Voxel* world::player_target::voxel;
+
+void world::player_target::init(void)
+{
+    world::player_target::coord = voxel_pos();
+    world::player_target::normal = voxel_pos();
+    world::player_target::voxel = nullptr;
+}
+
+void world::player_target::update(void)
+{
+    if(session::is_ingame()) {
+        RayDDA ray(globals::dimension, entity::camera::position_chunk, entity::camera::position_local, entity::camera::direction);
+
+        do {
+            world::player_target::voxel = ray.step();
+
+            if(world::player_target::voxel) {
+                world::player_target::coord = ray.vpos;
+                world::player_target::normal = ray.vnormal;
+                break;
+            }
+
+            world::player_target::coord = voxel_pos();
+            world::player_target::normal = voxel_pos();
+        } while(ray.distance < MAX_REACH);
+    }
+    else {
+        world::player_target::voxel = nullptr;
+        world::player_target::coord = voxel_pos();
+        world::player_target::normal = voxel_pos();
+    }
+}
+
+void world::player_target::render(void)
+{
+    if(world::player_target::voxel && !client_game::hide_hud) {
+        auto cpos = coord::to_chunk(world::player_target::coord);
+        auto fpos = coord::to_local(world::player_target::coord);
+
+        world::outline::prepare();
+        world::outline::cube(cpos, glm::fvec3(fpos), glm::fvec3(1.0f), 2.0f, glm::fvec4(0.0f, 0.0f, 0.0f, 1.0f));
+    }
+}
diff --git a/src/game/client/world/player_target.hh b/src/game/client/world/player_target.hh
new file mode 100644
index 0000000..175be02
--- /dev/null
+++ b/src/game/client/world/player_target.hh
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "shared/world/voxel_registry.hh"
+
+namespace world::player_target
+{
+extern voxel_pos coord;
+extern voxel_pos normal;
+extern const Voxel* voxel;
+} // namespace world::player_target
+
+namespace world::player_target
+{
+void init(void);
+void update(void);
+void render(void);
+} // namespace world::player_target
diff --git a/src/game/client/world/skybox.cc b/src/game/client/world/skybox.cc
new file mode 100644
index 0000000..5e52fa4
--- /dev/null
+++ b/src/game/client/world/skybox.cc
@@ -0,0 +1,11 @@
+#include "client/pch.hh"
+
+#include "client/world/skybox.hh"
+
+glm::fvec3 world::skybox::fog_color;
+
+void world::skybox::init(void)
+{
+    // https://convertingcolors.com/hex-color-B1F3FF.html
+    world::skybox::fog_color = glm::fvec3(0.690f, 0.950f, 1.000f);
+}
diff --git a/src/game/client/world/skybox.hh b/src/game/client/world/skybox.hh
new file mode 100644
index 0000000..40113cd
--- /dev/null
+++ b/src/game/client/world/skybox.hh
@@ -0,0 +1,11 @@
+#pragma once
+
+namespace world::skybox
+{
+extern glm::fvec3 fog_color;
+} // namespace world::skybox
+
+namespace world::skybox
+{
+void init(void);
+} // namespace world::skybox
diff --git a/src/game/client/world/voxel_anims.cc b/src/game/client/world/voxel_anims.cc
new file mode 100644
index 0000000..3d7cfd4
--- /dev/null
+++ b/src/game/client/world/voxel_anims.cc
@@ -0,0 +1,33 @@
+#include "client/pch.hh"
+
+#include "client/world/voxel_anims.hh"
+
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "client/globals.hh"
+
+static config::Unsigned base_framerate(16U, 1U, 16U);
+
+std::uint64_t world::voxel_anims::nextframe = 0U;
+std::uint32_t world::voxel_anims::frame = 0U;
+
+void world::voxel_anims::init(void)
+{
+    globals::client_config.add_value("voxel_anims.base_framerate", base_framerate);
+
+    world::voxel_anims::nextframe = 0U;
+    world::voxel_anims::frame = 0U;
+}
+
+void world::voxel_anims::update(void)
+{
+    if(globals::curtime >= world::voxel_anims::nextframe) {
+        world::voxel_anims::nextframe = globals::curtime
+            + static_cast<std::uint64_t>(1000000.0 / static_cast<float>(base_framerate.get_value()));
+        world::voxel_anims::frame += 1U;
+    }
+}
diff --git a/src/game/client/world/voxel_anims.hh b/src/game/client/world/voxel_anims.hh
new file mode 100644
index 0000000..0d8a0d0
--- /dev/null
+++ b/src/game/client/world/voxel_anims.hh
@@ -0,0 +1,13 @@
+#pragma once
+
+namespace world::voxel_anims
+{
+extern std::uint64_t nextframe;
+extern std::uint32_t frame;
+} // namespace world::voxel_anims
+
+namespace world::voxel_anims
+{
+void init(void);
+void update(void);
+} // namespace world::voxel_anims
diff --git a/src/game/client/world/voxel_atlas.cc b/src/game/client/world/voxel_atlas.cc
new file mode 100644
index 0000000..4307dad
--- /dev/null
+++ b/src/game/client/world/voxel_atlas.cc
@@ -0,0 +1,186 @@
+#include "client/pch.hh"
+
+#include "client/world/voxel_atlas.hh"
+
+#include "core/math/constexpr.hh"
+#include "core/math/crc64.hh"
+
+#include "core/resource/image.hh"
+#include "core/resource/resource.hh"
+
+struct AtlasPlane final {
+    std::unordered_map<std::size_t, std::size_t> lookup;
+    std::vector<world::AtlasStrip> strips;
+    std::size_t layer_count_max;
+    std::size_t layer_count;
+    std::size_t plane_id;
+    GLuint gl_texture;
+};
+
+static int atlas_width;
+static int atlas_height;
+static std::size_t atlas_count;
+static std::vector<AtlasPlane> planes;
+
+// Certain animated and varied voxels just double their
+// textures (see the "default" texture part in VoxelInfoBuilder::build)
+// so there could either be six UNIQUE atlas strips or only one
+// https://crypto.stackexchange.com/questions/55162/best-way-to-hash-two-values-into-one
+static std::size_t vector_hash(const std::vector<std::string>& strings)
+{
+    std::size_t source = 0;
+    for(const std::string& str : strings)
+        source += math::crc64(str);
+    return math::crc64(&source, sizeof(source));
+}
+
+static void plane_setup(AtlasPlane& plane)
+{
+    glGenTextures(1, &plane.gl_texture);
+    glBindTexture(GL_TEXTURE_2D_ARRAY, plane.gl_texture);
+    glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA8, atlas_width, atlas_height, static_cast<GLsizei>(plane.layer_count_max), 0, GL_RED,
+        GL_UNSIGNED_BYTE, nullptr);
+    glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_REPEAT);
+    glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_REPEAT);
+}
+
+static world::AtlasStrip* plane_lookup(AtlasPlane& plane, std::size_t hash_value)
+{
+    const auto it = plane.lookup.find(hash_value);
+
+    if(it != plane.lookup.cend()) {
+        return &plane.strips[it->second];
+    }
+
+    return nullptr;
+}
+
+static world::AtlasStrip* plane_new_strip(AtlasPlane& plane, const std::vector<std::string>& paths, std::size_t hash_value)
+{
+    world::AtlasStrip strip = {};
+    strip.offset = plane.layer_count;
+    strip.plane = plane.plane_id;
+
+    glBindTexture(GL_TEXTURE_2D_ARRAY, plane.gl_texture);
+
+    for(std::size_t i = 0; i < paths.size(); ++i) {
+        if(auto image = resource::load<Image>(paths[i].c_str(), IMAGE_LOAD_FLIP)) {
+            if((image->size.x != atlas_width) || (image->size.y != atlas_height)) {
+                spdlog::warn("atlas: {}: size mismatch", paths[i]);
+                continue;
+            }
+
+            const std::size_t offset = strip.offset + i;
+            glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, static_cast<GLint>(offset), image->size.x, image->size.y, 1, GL_RGBA,
+                GL_UNSIGNED_BYTE, image->pixels);
+        }
+    }
+
+    plane.layer_count += paths.size();
+
+    const std::size_t index = plane.strips.size();
+    plane.lookup.emplace(hash_value, index);
+    plane.strips.push_back(std::move(strip));
+    return &plane.strips[index];
+}
+
+void world::voxel_atlas::create(int width, int height, std::size_t count)
+{
+    GLint max_plane_layers;
+
+    atlas_width = 1 << math::log2(width);
+    atlas_height = 1 << math::log2(height);
+
+    // Clipping this at OpenGL 4.5 limit of 2048 is important due to
+    // how voxel quad meshes are packed in memory: each texture index is
+    // confined in 11 bits so having bigger atlas planes makes no sense;
+    glGetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS, &max_plane_layers);
+    max_plane_layers = glm::clamp(max_plane_layers, 256, 2048);
+
+    for(long i = static_cast<long>(count); i > 0L; i -= max_plane_layers) {
+        AtlasPlane plane = {};
+        plane.plane_id = planes.size();
+        plane.layer_count_max = glm::min<std::size_t>(max_plane_layers, i);
+        plane.layer_count = 0;
+
+        const std::size_t save_id = plane.plane_id;
+        planes.push_back(std::move(plane));
+        plane_setup(planes[save_id]);
+    }
+
+    spdlog::debug("voxel_atlas: count={}", count);
+    spdlog::debug("voxel_atlas: atlas_size=[{}x{}]", atlas_width, atlas_height);
+    spdlog::debug("voxel_atlas: max_plane_layers={}", max_plane_layers);
+}
+
+void world::voxel_atlas::destroy(void)
+{
+    for(const AtlasPlane& plane : planes)
+        glDeleteTextures(1, &plane.gl_texture);
+    atlas_width = 0;
+    atlas_height = 0;
+    planes.clear();
+}
+
+std::size_t world::voxel_atlas::plane_count(void)
+{
+    return planes.size();
+}
+
+GLuint world::voxel_atlas::plane_texture(std::size_t plane_id)
+{
+    if(plane_id < planes.size()) {
+        return planes[plane_id].gl_texture;
+    }
+    else {
+        return 0;
+    }
+}
+
+void world::voxel_atlas::generate_mipmaps(void)
+{
+    for(const AtlasPlane& plane : planes) {
+        glBindTexture(GL_TEXTURE_2D_ARRAY, plane.gl_texture);
+        glGenerateMipmap(GL_TEXTURE_2D_ARRAY);
+    }
+}
+
+world::AtlasStrip* world::voxel_atlas::find_or_load(const std::vector<std::string>& paths)
+{
+    const std::size_t hash_value = vector_hash(paths);
+
+    for(AtlasPlane& plane : planes) {
+        if(AtlasStrip* strip = plane_lookup(plane, hash_value)) {
+            return strip;
+        }
+
+        continue;
+    }
+
+    for(AtlasPlane& plane : planes) {
+        if((plane.layer_count + paths.size()) <= plane.layer_count_max) {
+            return plane_new_strip(plane, paths, hash_value);
+        }
+
+        continue;
+    }
+
+    return nullptr;
+}
+
+world::AtlasStrip* world::voxel_atlas::find(const std::vector<std::string>& paths)
+{
+    const std::size_t hash_value = vector_hash(paths);
+
+    for(AtlasPlane& plane : planes) {
+        if(AtlasStrip* strip = plane_lookup(plane, hash_value)) {
+            return strip;
+        }
+
+        continue;
+    }
+
+    return nullptr;
+}
diff --git a/src/game/client/world/voxel_atlas.hh b/src/game/client/world/voxel_atlas.hh
new file mode 100644
index 0000000..70e8a1e
--- /dev/null
+++ b/src/game/client/world/voxel_atlas.hh
@@ -0,0 +1,28 @@
+#pragma once
+
+namespace world
+{
+struct AtlasStrip final {
+    std::size_t offset;
+    std::size_t plane;
+};
+} // namespace world
+
+namespace world::voxel_atlas
+{
+void create(int width, int height, std::size_t count);
+void destroy(void);
+} // namespace world::voxel_atlas
+
+namespace world::voxel_atlas
+{
+std::size_t plane_count(void);
+GLuint plane_texture(std::size_t plane_id);
+void generate_mipmaps(void);
+} // namespace world::voxel_atlas
+
+namespace world::voxel_atlas
+{
+AtlasStrip* find_or_load(const std::vector<std::string>& paths);
+AtlasStrip* find(const std::vector<std::string>& paths);
+} // namespace world::voxel_atlas
diff --git a/src/game/client/world/voxel_sounds.cc b/src/game/client/world/voxel_sounds.cc
new file mode 100644
index 0000000..42552f5
--- /dev/null
+++ b/src/game/client/world/voxel_sounds.cc
@@ -0,0 +1,83 @@
+#include "client/pch.hh"
+
+#include "client/world/voxel_sounds.hh"
+
+#include "client/resource/sound_effect.hh"
+
+static std::vector<resource_ptr<SoundEffect>> footsteps_sounds[world::VMAT_COUNT];
+static std::mt19937_64 randomizer;
+
+static void add_footsteps_effect(world::VoxelMaterial material, std::string_view name)
+{
+    if(auto effect = resource::load<SoundEffect>(name)) {
+        footsteps_sounds[material].push_back(effect);
+    }
+}
+
+static resource_ptr<SoundEffect> get_footsteps_effect(world::VoxelMaterial material)
+{
+    auto surface_index = static_cast<std::size_t>(material);
+
+    if(surface_index >= world::VMAT_COUNT) {
+        // Surface index out of range
+        return nullptr;
+    }
+
+    const auto& sounds = footsteps_sounds[surface_index];
+
+    if(sounds.empty()) {
+        // No sounds for this surface
+        return nullptr;
+    }
+
+    auto dist = std::uniform_int_distribution<std::size_t>(0, sounds.size() - 1);
+    return sounds.at(dist(randomizer));
+}
+
+void world::voxel_sounds::init(void)
+{
+    add_footsteps_effect(VMAT_DEFAULT, "sounds/surface/default1.wav");
+    add_footsteps_effect(VMAT_DEFAULT, "sounds/surface/default2.wav");
+    add_footsteps_effect(VMAT_DEFAULT, "sounds/surface/default3.wav");
+    add_footsteps_effect(VMAT_DEFAULT, "sounds/surface/default4.wav");
+
+    add_footsteps_effect(VMAT_DIRT, "sounds/surface/dirt1.wav");
+
+    add_footsteps_effect(VMAT_GRASS, "sounds/surface/grass1.wav");
+    add_footsteps_effect(VMAT_GRASS, "sounds/surface/grass2.wav");
+    add_footsteps_effect(VMAT_GRASS, "sounds/surface/grass3.wav");
+
+    add_footsteps_effect(VMAT_GRAVEL, "sounds/surface/gravel1.wav");
+
+    add_footsteps_effect(VMAT_SAND, "sounds/surface/sand1.wav");
+    add_footsteps_effect(VMAT_SAND, "sounds/surface/sand2.wav");
+
+    add_footsteps_effect(VMAT_WOOD, "sounds/surface/wood1.wav");
+    add_footsteps_effect(VMAT_WOOD, "sounds/surface/wood2.wav");
+    add_footsteps_effect(VMAT_WOOD, "sounds/surface/wood3.wav");
+}
+
+void world::voxel_sounds::shutdown(void)
+{
+    for(std::size_t i = 0; i < world::VMAT_COUNT; ++i) {
+        footsteps_sounds[i].clear();
+    }
+}
+
+resource_ptr<SoundEffect> world::voxel_sounds::get_footsteps(world::VoxelMaterial material)
+{
+    if(auto effect = get_footsteps_effect(material)) {
+        return effect;
+    }
+
+    if(auto effect = get_footsteps_effect(VMAT_DEFAULT)) {
+        return effect;
+    }
+
+    return nullptr;
+}
+
+resource_ptr<SoundEffect> world::voxel_sounds::get_placebreak(world::VoxelMaterial material)
+{
+    return nullptr;
+}
diff --git a/src/game/client/world/voxel_sounds.hh b/src/game/client/world/voxel_sounds.hh
new file mode 100644
index 0000000..dc02cbd
--- /dev/null
+++ b/src/game/client/world/voxel_sounds.hh
@@ -0,0 +1,19 @@
+#pragma once
+
+#include "core/resource/resource.hh"
+
+#include "shared/world/voxel.hh"
+
+struct SoundEffect;
+
+namespace world::voxel_sounds
+{
+void init(void);
+void shutdown(void);
+} // namespace world::voxel_sounds
+
+namespace world::voxel_sounds
+{
+resource_ptr<SoundEffect> get_footsteps(VoxelMaterial material);
+resource_ptr<SoundEffect> get_placebreak(VoxelMaterial material);
+} // namespace world::voxel_sounds
diff --git a/src/game/server/CMakeLists.txt b/src/game/server/CMakeLists.txt
new file mode 100644
index 0000000..4672a89
--- /dev/null
+++ b/src/game/server/CMakeLists.txt
@@ -0,0 +1,31 @@
+add_executable(vserver
+    "${CMAKE_CURRENT_LIST_DIR}/chat.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/chat.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/game.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/game.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/globals.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/globals.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/main.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/pch.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/receive.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/receive.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/sessions.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/sessions.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/status.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/status.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/whitelist.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/whitelist.hh")
+target_compile_features(vserver PUBLIC cxx_std_20)
+target_include_directories(vserver PRIVATE "${PROJECT_SOURCE_DIR}/src")
+target_include_directories(vserver PRIVATE "${PROJECT_SOURCE_DIR}/src/game")
+target_precompile_headers(vserver PRIVATE "${CMAKE_CURRENT_LIST_DIR}/pch.hh")
+target_link_libraries(vserver PUBLIC shared)
+
+add_subdirectory(world)
+
+if(WIN32)
+    enable_language(RC)
+    target_sources(vserver PRIVATE "${CMAKE_CURRENT_LIST_DIR}/vserver.rc")
+endif()
+
+install(TARGETS vserver RUNTIME DESTINATION ".")
diff --git a/src/game/server/chat.cc b/src/game/server/chat.cc
new file mode 100644
index 0000000..a0ceba8
--- /dev/null
+++ b/src/game/server/chat.cc
@@ -0,0 +1,55 @@
+#include "server/pch.hh"
+
+#include "server/chat.hh"
+
+#include "server/globals.hh"
+#include "server/sessions.hh"
+#include "shared/protocol.hh"
+
+static void on_chat_message_packet(const protocol::ChatMessage& packet)
+{
+    if(packet.type == protocol::ChatMessage::TEXT_MESSAGE) {
+        if(auto session = sessions::find(packet.peer)) {
+            server_chat::broadcast(packet.message.c_str(), session->client_username.c_str());
+        }
+        else {
+            server_chat::broadcast(packet.message.c_str(), packet.sender.c_str());
+        }
+    }
+}
+
+void server_chat::init(void)
+{
+    globals::dispatcher.sink<protocol::ChatMessage>().connect<&on_chat_message_packet>();
+}
+
+void server_chat::broadcast(std::string_view message)
+{
+    server_chat::broadcast(message, "server");
+}
+
+void server_chat::broadcast(std::string_view message, std::string_view sender)
+{
+    protocol::ChatMessage packet;
+    packet.type = protocol::ChatMessage::TEXT_MESSAGE;
+    packet.message = message;
+    packet.sender = sender;
+
+    protocol::broadcast(globals::server_host, protocol::encode(packet));
+
+    spdlog::info("<{}> {}", sender, message);
+}
+
+void server_chat::send(Session* session, std::string_view message)
+{
+    server_chat::send(session, message, "server");
+}
+
+void server_chat::send(Session* session, std::string_view message, std::string_view sender)
+{
+    protocol::ChatMessage packet;
+    packet.type = protocol::ChatMessage::TEXT_MESSAGE;
+    packet.message = message;
+    packet.sender = sender;
+    protocol::broadcast(globals::server_host, protocol::encode(packet));
+}
diff --git a/src/game/server/chat.hh b/src/game/server/chat.hh
new file mode 100644
index 0000000..1b3e11b
--- /dev/null
+++ b/src/game/server/chat.hh
@@ -0,0 +1,12 @@
+#pragma once
+
+struct Session;
+
+namespace server_chat
+{
+void init(void);
+void broadcast(std::string_view message);
+void broadcast(std::string_view message, std::string_view sender);
+void send(Session* session, std::string_view message);
+void send(Session* session, std::string_view message, std::string_view sender);
+} // namespace server_chat
diff --git a/src/game/server/game.cc b/src/game/server/game.cc
new file mode 100644
index 0000000..3a13690
--- /dev/null
+++ b/src/game/server/game.cc
@@ -0,0 +1,163 @@
+#include "server/pch.hh"
+
+#include "server/game.hh"
+
+#include "core/config/number.hh"
+#include "core/config/string.hh"
+
+#include "core/io/cmdline.hh"
+#include "core/io/config_map.hh"
+
+#include "core/math/constexpr.hh"
+#include "core/math/crc64.hh"
+
+#include "core/utils/epoch.hh"
+
+#include "shared/entity/collision.hh"
+#include "shared/entity/gravity.hh"
+#include "shared/entity/head.hh"
+#include "shared/entity/player.hh"
+#include "shared/entity/stasis.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/game_items.hh"
+#include "shared/game_voxels.hh"
+#include "shared/protocol.hh"
+#include "shared/splash.hh"
+
+#include "server/world/random_tick.hh"
+#include "server/world/universe.hh"
+#include "server/world/unloader.hh"
+#include "server/world/worldgen.hh"
+
+#include "server/chat.hh"
+#include "server/globals.hh"
+#include "server/receive.hh"
+#include "server/sessions.hh"
+#include "server/status.hh"
+#include "server/whitelist.hh"
+
+config::Unsigned server_game::view_distance(4U, 4U, 32U);
+
+std::uint64_t server_game::password_hash = UINT64_MAX;
+
+static config::Number<enet_uint16> listen_port(protocol::PORT, 1024U, UINT16_MAX);
+static config::Unsigned status_peers(2U, 1U, 16U);
+static config::String password_string("");
+
+void server_game::init(void)
+{
+    globals::server_config.add_value("game.listen_port", listen_port);
+    globals::server_config.add_value("game.status_peers", status_peers);
+    globals::server_config.add_value("game.password", password_string);
+    globals::server_config.add_value("game.view_distance", server_game::view_distance);
+
+    sessions::init();
+
+    whitelist::init();
+
+    splash::init_server();
+
+    status::init();
+
+    server_chat::init();
+    server_recieve::init();
+
+    world::worldgen::init();
+
+    world::unloader::init();
+    world::universe::init();
+
+    world::random_tick::init();
+}
+
+void server_game::init_late(void)
+{
+    server_game::password_hash = math::crc64(password_string.get_value());
+
+    sessions::init_late();
+
+    whitelist::init_late();
+
+    ENetAddress address;
+    address.host = ENET_HOST_ANY;
+    address.port = listen_port.get_value();
+
+    globals::server_host = enet_host_create(&address, sessions::max_players.get_value() + status_peers.get_value(), 1, 0, 0);
+
+    if(!globals::server_host) {
+        spdlog::critical("game: unable to setup an ENet host");
+        std::terminate();
+    }
+
+    spdlog::info("game: host: {} player + {} status peers", sessions::max_players.get_value(), status_peers.get_value());
+    spdlog::info("game: host: listening on UDP port {}", address.port);
+
+    game_voxels::populate();
+    game_items::populate();
+
+    world::unloader::init_late();
+    world::universe::init_late();
+
+    sessions::init_post_universe();
+}
+
+void server_game::shutdown(void)
+{
+    protocol::Disconnect packet;
+    packet.reason = "protocol.server_shutdown";
+    protocol::broadcast(globals::server_host, protocol::encode(packet));
+
+    whitelist::shutdown();
+
+    sessions::shutdown();
+
+    enet_host_flush(globals::server_host);
+    enet_host_service(globals::server_host, nullptr, 500);
+    enet_host_destroy(globals::server_host);
+
+    world::universe::shutdown();
+}
+
+void server_game::fixed_update(void)
+{
+    // FIXME: threading
+    for(auto dimension : globals::dimensions) {
+        entity::Collision::fixed_update(dimension.second);
+        entity::Velocity::fixed_update(dimension.second);
+        entity::Transform::fixed_update(dimension.second);
+        entity::Gravity::fixed_update(dimension.second);
+        entity::Stasis::fixed_update(dimension.second);
+
+        for(auto [entity, component] : dimension.second->chunks.view<world::ChunkComponent>().each()) {
+            world::random_tick::tick(component.cpos, component.chunk);
+        }
+    }
+}
+
+void server_game::fixed_update_late(void)
+{
+    ENetEvent enet_event;
+
+    while(0 < enet_host_service(globals::server_host, &enet_event, 0)) {
+        if(enet_event.type == ENET_EVENT_TYPE_DISCONNECT) {
+            sessions::destroy(sessions::find(enet_event.peer));
+            sessions::refresh_scoreboard();
+            continue;
+        }
+
+        if(enet_event.type == ENET_EVENT_TYPE_RECEIVE) {
+            protocol::decode(globals::dispatcher, enet_event.packet, enet_event.peer);
+            enet_packet_destroy(enet_event.packet);
+            continue;
+        }
+    }
+
+    // FIXME: threading
+    for(auto dimension : globals::dimensions) {
+        world::unloader::fixed_update_late(dimension.second);
+    }
+}
diff --git a/src/game/server/game.hh b/src/game/server/game.hh
new file mode 100644
index 0000000..1dbe4b8
--- /dev/null
+++ b/src/game/server/game.hh
@@ -0,0 +1,25 @@
+#pragma once
+
+namespace config
+{
+class Unsigned;
+} // namespace config
+
+namespace server_game
+{
+extern config::Unsigned view_distance;
+} // namespace server_game
+
+namespace server_game
+{
+extern std::uint64_t password_hash;
+} // namespace server_game
+
+namespace server_game
+{
+void init(void);
+void init_late(void);
+void shutdown(void);
+void fixed_update(void);
+void fixed_update_late(void);
+} // namespace server_game
diff --git a/src/game/server/globals.cc b/src/game/server/globals.cc
new file mode 100644
index 0000000..7d79e4d
--- /dev/null
+++ b/src/game/server/globals.cc
@@ -0,0 +1,18 @@
+#include "server/pch.hh"
+
+#include "server/globals.hh"
+
+#include "core/io/config_map.hh"
+
+#include "shared/protocol.hh"
+
+io::ConfigMap globals::server_config;
+
+ENetHost* globals::server_host;
+
+bool globals::is_running;
+unsigned int globals::tickrate;
+std::uint64_t globals::tickrate_dt;
+
+world::Dimension* globals::spawn_dimension;
+std::unordered_map<std::string, world::Dimension*> globals::dimensions;
diff --git a/src/game/server/globals.hh b/src/game/server/globals.hh
new file mode 100644
index 0000000..b684d3b
--- /dev/null
+++ b/src/game/server/globals.hh
@@ -0,0 +1,27 @@
+#pragma once
+
+#include "shared/globals.hh"
+
+namespace io
+{
+class ConfigMap;
+} // namespace io
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace globals
+{
+extern io::ConfigMap server_config;
+
+extern ENetHost* server_host;
+
+extern bool is_running;
+extern unsigned int tickrate;
+extern std::uint64_t tickrate_dt;
+
+extern world::Dimension* spawn_dimension;
+extern std::unordered_map<std::string, world::Dimension*> dimensions;
+} // namespace globals
diff --git a/src/game/server/main.cc b/src/game/server/main.cc
new file mode 100644
index 0000000..cf265a4
--- /dev/null
+++ b/src/game/server/main.cc
@@ -0,0 +1,108 @@
+#include "server/pch.hh"
+
+#include "core/config/number.hh"
+
+#include "core/io/cmdline.hh"
+#include "core/io/config_map.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "core/resource/image.hh"
+#include "core/resource/resource.hh"
+
+#include "core/utils/epoch.hh"
+
+#include "core/threading.hh"
+#include "core/version.hh"
+
+#include "shared/game.hh"
+#include "shared/protocol.hh"
+
+#include "server/game.hh"
+#include "server/globals.hh"
+
+static config::Unsigned server_tickrate(protocol::TICKRATE, 10U, 300U);
+
+static void on_termination_signal(int)
+{
+    spdlog::warn("server: received termination signal");
+    globals::is_running = false;
+}
+
+int main(int argc, char** argv)
+{
+    io::cmdline::create(argc, argv);
+
+    shared_game::init(argc, argv, "voxelius-server.log");
+
+    spdlog::info("Voxelius Server {}", version::full);
+
+    globals::fixed_frametime = 0.0f;
+    globals::fixed_frametime_avg = 0.0f;
+    globals::fixed_frametime_us = 0;
+    globals::fixed_framecount = 0;
+
+    globals::curtime = utils::unix_microseconds();
+
+    globals::is_running = true;
+
+    std::signal(SIGINT, &on_termination_signal);
+    std::signal(SIGTERM, &on_termination_signal);
+
+    Image::register_resource();
+
+    server_game::init();
+
+    threading::init();
+
+    globals::server_config.add_value("server.tickrate", server_tickrate);
+    globals::server_config.load_file("server.conf");
+    globals::server_config.load_cmdline();
+
+    globals::tickrate = server_tickrate.get_value();
+    globals::tickrate_dt = static_cast<std::uint64_t>(1000000.0f / static_cast<float>(globals::tickrate));
+
+    server_game::init_late();
+
+    std::uint64_t last_curtime = globals::curtime;
+
+    while(globals::is_running) {
+        globals::curtime = utils::unix_microseconds();
+
+        globals::fixed_frametime_us = globals::curtime - last_curtime;
+        globals::fixed_frametime = static_cast<float>(globals::fixed_frametime_us) / 1000000.0f;
+        globals::fixed_frametime_avg += globals::fixed_frametime;
+        globals::fixed_frametime_avg *= 0.5f;
+
+        last_curtime = globals::curtime;
+
+        server_game::fixed_update();
+        server_game::fixed_update_late();
+
+        globals::dispatcher.update();
+
+        globals::fixed_framecount += 1;
+
+        std::this_thread::sleep_for(std::chrono::microseconds(globals::tickrate_dt));
+
+        resource::soft_cleanup();
+
+        threading::update();
+    }
+
+    server_game::shutdown();
+
+    resource::hard_cleanup();
+
+    threading::shutdown();
+
+    spdlog::info("server: shutdown after {} frames", globals::fixed_framecount);
+    spdlog::info("server: average framerate: {:.03f} TPS", 1.0f / globals::fixed_frametime_avg);
+    spdlog::info("server: average frametime: {:.03f} MSPT", 1000.0f * globals::fixed_frametime_avg);
+
+    globals::server_config.save_file("server.conf");
+
+    shared_game::shutdown();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/game/server/pch.hh b/src/game/server/pch.hh
new file mode 100644
index 0000000..6f42c17
--- /dev/null
+++ b/src/game/server/pch.hh
@@ -0,0 +1,3 @@
+#pragma once
+
+#include <shared/pch.hh>
diff --git a/src/game/server/receive.cc b/src/game/server/receive.cc
new file mode 100644
index 0000000..b804450
--- /dev/null
+++ b/src/game/server/receive.cc
@@ -0,0 +1,175 @@
+#include "server/pch.hh"
+
+#include "server/receive.hh"
+
+#include "core/config/number.hh"
+
+#include "shared/entity/head.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/chunk_aabb.hh"
+#include "shared/world/dimension.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+#include "shared/protocol.hh"
+
+#include "server/world/inhabited.hh"
+#include "server/world/universe.hh"
+#include "server/world/worldgen.hh"
+
+#include "server/game.hh"
+#include "server/globals.hh"
+#include "server/sessions.hh"
+
+static void on_entity_transform_packet(const protocol::EntityTransform& packet)
+{
+    if(auto session = sessions::find(packet.peer)) {
+        if(session->dimension && session->dimension->entities.valid(session->player_entity)) {
+            auto& component = session->dimension->entities.emplace_or_replace<entity::Transform>(session->player_entity);
+            component.angles = packet.angles;
+            component.chunk = packet.chunk;
+            component.local = packet.local;
+
+            protocol::EntityTransform response;
+            response.entity = session->player_entity;
+            response.angles = component.angles;
+            response.chunk = component.chunk;
+            response.local = component.local;
+
+            // Propagate changes to the rest of the world
+            // except the peer that has sent the packet in the first place
+            sessions::broadcast(session->dimension, protocol::encode(response), session->peer);
+        }
+    }
+}
+
+static void on_entity_velocity_packet(const protocol::EntityVelocity& packet)
+{
+    if(auto session = sessions::find(packet.peer)) {
+        if(session->dimension && session->dimension->entities.valid(session->player_entity)) {
+            auto& component = session->dimension->entities.emplace_or_replace<entity::Velocity>(session->player_entity);
+            component.value = packet.value;
+
+            protocol::EntityVelocity response;
+            response.entity = session->player_entity;
+            response.value = component.value;
+
+            // Propagate changes to the rest of the world
+            // except the peer that has sent the packet in the first place
+            sessions::broadcast(session->dimension, protocol::encode(response), session->peer);
+        }
+    }
+}
+
+static void on_entity_head_packet(const protocol::EntityHead& packet)
+{
+    if(auto session = sessions::find(packet.peer)) {
+        if(session->dimension && session->dimension->entities.valid(session->player_entity)) {
+            auto& component = session->dimension->entities.emplace_or_replace<entity::Head>(session->player_entity);
+            component.angles = packet.angles;
+
+            protocol::EntityHead response;
+            response.entity = session->player_entity;
+            response.angles = component.angles;
+
+            // Propagate changes to the rest of the world
+            // except the peer that has sent the packet in the first place
+            sessions::broadcast(session->dimension, protocol::encode(response), session->peer);
+        }
+    }
+}
+
+static void on_set_voxel_packet(const protocol::SetVoxel& packet)
+{
+    if(auto session = sessions::find(packet.peer)) {
+        if(session->dimension && !session->dimension->set_voxel(world::voxel_registry::find(packet.voxel), packet.vpos)) {
+            auto cpos = coord::to_chunk(packet.vpos);
+            auto lpos = coord::to_local(packet.vpos);
+            auto index = coord::to_index(lpos);
+
+            if(world::worldgen::is_generating(session->dimension, cpos)) {
+                // The chunk is currently being generated;
+                // ignore all requests from players to build there
+                return;
+            }
+
+            auto chunk = session->dimension->find_chunk(cpos);
+
+            if(chunk == nullptr) {
+                // The chunk is not loaded, so we must
+                // ignore any requests from players to build there
+                return;
+            }
+
+            chunk->set_voxel(world::voxel_registry::find(packet.voxel), index);
+
+            session->dimension->chunks.emplace_or_replace<world::Inhabited>(chunk->get_entity());
+
+            protocol::SetVoxel response;
+            response.vpos = packet.vpos;
+            response.voxel = packet.voxel;
+            sessions::broadcast(session->dimension, protocol::encode(response), session->peer);
+
+            return;
+        }
+    }
+}
+
+static void on_request_chunk_packet(const protocol::RequestChunk& packet)
+{
+    if(auto session = sessions::find(packet.peer)) {
+        if(!session->dimension || !session->dimension->entities.valid(session->player_entity)) {
+            // De-spawned sessions cannot request
+            // chunks from the server; that's cheating!!!
+            return;
+        }
+
+        if(auto transform = session->dimension->entities.try_get<entity::Transform>(session->player_entity)) {
+            world::ChunkAABB view_box;
+            view_box.min = transform->chunk - static_cast<chunk_pos::value_type>(server_game::view_distance.get_value());
+            view_box.max = transform->chunk + static_cast<chunk_pos::value_type>(server_game::view_distance.get_value());
+
+            if(view_box.contains(packet.cpos)) {
+                if(auto chunk = world::universe::load_chunk(session->dimension, packet.cpos)) {
+                    protocol::ChunkVoxels response;
+                    response.chunk = packet.cpos;
+                    response.voxels = chunk->get_voxels();
+                    protocol::send(packet.peer, protocol::encode(response));
+                }
+                else {
+                    world::worldgen::request_chunk(session, packet.cpos);
+                }
+            }
+        }
+    }
+}
+
+static void on_entity_sound_packet(const protocol::EntitySound& packet)
+{
+    if(auto session = sessions::find(packet.peer)) {
+        if(!session->dimension || !session->dimension->entities.valid(session->player_entity)) {
+            // De-spawned sessions cannot play sounds
+            return;
+        }
+
+        protocol::EntitySound response;
+        response.entity = session->player_entity;
+        response.sound = packet.sound;
+        response.looping = packet.looping;
+        response.pitch = packet.pitch;
+
+        sessions::broadcast(session->dimension, protocol::encode(response), packet.peer);
+    }
+}
+
+void server_recieve::init(void)
+{
+    globals::dispatcher.sink<protocol::EntityTransform>().connect<&on_entity_transform_packet>();
+    globals::dispatcher.sink<protocol::EntityVelocity>().connect<&on_entity_velocity_packet>();
+    globals::dispatcher.sink<protocol::EntityHead>().connect<&on_entity_head_packet>();
+    globals::dispatcher.sink<protocol::SetVoxel>().connect<&on_set_voxel_packet>();
+    globals::dispatcher.sink<protocol::RequestChunk>().connect<&on_request_chunk_packet>();
+    globals::dispatcher.sink<protocol::EntitySound>().connect<&on_entity_sound_packet>();
+}
diff --git a/src/game/server/receive.hh b/src/game/server/receive.hh
new file mode 100644
index 0000000..4150226
--- /dev/null
+++ b/src/game/server/receive.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace server_recieve
+{
+void init(void);
+} // namespace server_recieve
diff --git a/src/game/server/sessions.cc b/src/game/server/sessions.cc
new file mode 100644
index 0000000..3a63ae8
--- /dev/null
+++ b/src/game/server/sessions.cc
@@ -0,0 +1,452 @@
+#include "server/pch.hh"
+
+#include "server/sessions.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "core/math/constexpr.hh"
+#include "core/math/crc64.hh"
+
+#include "core/utils/string.hh"
+
+#include "core/version.hh"
+
+#include "shared/entity/factory.hh"
+#include "shared/entity/head.hh"
+#include "shared/entity/player.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+#include "shared/world/item_registry.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+#include "shared/protocol.hh"
+
+#include "server/game.hh"
+#include "server/globals.hh"
+#include "server/whitelist.hh"
+
+class DimensionListener final {
+public:
+    explicit DimensionListener(world::Dimension* dimension);
+    void on_destroy_entity(const entt::registry& registry, entt::entity entity);
+
+private:
+    world::Dimension* dimension;
+};
+
+config::Unsigned sessions::max_players(8U, 1U, 128U);
+unsigned int sessions::num_players = 0U;
+
+static config::Boolean strict_version_matching(true);
+
+static emhash8::HashMap<std::string, Session*> username_map;
+static emhash8::HashMap<std::uint64_t, Session*> identity_map;
+static std::vector<DimensionListener> dimension_listeners;
+static std::vector<Session> sessions_vector;
+
+static void on_login_request_packet(const protocol::LoginRequest& packet)
+{
+    if(packet.game_version_major > version::major) {
+        protocol::Disconnect response;
+        response.reason = "protocol.outdated_server";
+        protocol::send(packet.peer, protocol::encode(response));
+        return;
+    }
+
+    if(packet.game_version_minor < version::minor) {
+        protocol::Disconnect response;
+        response.reason = "protocol.outdated_client";
+        protocol::send(packet.peer, protocol::encode(response));
+        return;
+    }
+
+    if(strict_version_matching.get_value()) {
+        if(packet.game_version_minor > version::minor || packet.game_version_patch > version::patch) {
+            protocol::Disconnect response;
+            response.reason = "protocol.outdated_server";
+            protocol::send(packet.peer, protocol::encode(response));
+            return;
+        }
+
+        if(packet.game_version_minor < version::minor || packet.game_version_patch < version::patch) {
+            protocol::Disconnect response;
+            response.reason = "protocol.outdated_client";
+            protocol::send(packet.peer, protocol::encode(response));
+            return;
+        }
+    }
+
+    // FIXME: calculate voxel registry checksum ahead of time
+    // instead of figuring it out every time a new player connects
+    if(packet.voxel_registry_checksum != world::voxel_registry::get_checksum()) {
+        protocol::Disconnect response;
+        response.reason = "protocol.voxel_registry_checksum";
+        protocol::send(packet.peer, protocol::encode(response));
+        return;
+    }
+
+    if(packet.item_registry_checksum != world::item_registry::get_checksum()) {
+        protocol::Disconnect response;
+        response.reason = "protocol.item_registry_checksum";
+        protocol::send(packet.peer, protocol::encode(response));
+        return;
+    }
+
+    // Don't assign new usernames and just kick the player if
+    // an another client using the same username is already connected
+    // and playing; since we have a whitelist, adding "(1)" isn't feasible anymore
+    if(username_map.contains(packet.username)) {
+        protocol::Disconnect response;
+        response.reason = "protocol.username_taken";
+        protocol::send(packet.peer, protocol::encode(response));
+        return;
+    }
+
+    if(whitelist::enabled.get_value()) {
+        if(!whitelist::contains(packet.username.c_str())) {
+            protocol::Disconnect response;
+            response.reason = "protocol.not_whitelisted";
+            protocol::send(packet.peer, protocol::encode(response));
+            return;
+        }
+
+        if(!whitelist::matches(packet.username.c_str(), packet.password_hash)) {
+            protocol::Disconnect response;
+            response.reason = "protocol.password_incorrect";
+            protocol::send(packet.peer, protocol::encode(response));
+            return;
+        }
+    }
+    else if(packet.password_hash != server_game::password_hash) {
+        protocol::Disconnect response;
+        response.reason = "protocol.password_incorrect";
+        protocol::send(packet.peer, protocol::encode(response));
+        return;
+    }
+
+    if(Session* session = sessions::create(packet.peer, packet.username.c_str())) {
+        protocol::LoginResponse response;
+        response.client_index = session->client_index;
+        response.client_identity = session->client_identity;
+        response.server_tickrate = globals::tickrate;
+        protocol::send(packet.peer, protocol::encode(response));
+
+        protocol::DimensionInfo dim_info;
+        dim_info.name = globals::spawn_dimension->get_name();
+        dim_info.gravity = globals::spawn_dimension->get_gravity();
+        protocol::send(packet.peer, protocol::encode(dim_info));
+
+        spdlog::info("sessions: {} [{}] logged in with client_index={} in {}", session->client_username, session->client_identity,
+            session->client_index, globals::spawn_dimension->get_name());
+
+        // FIXME: only send entities that are present within the current
+        // player's view bounding box; this also would mean we're not sending
+        // anything here and just straight up spawing the player and await them
+        // to receive all the chunks and entites they feel like requesting
+        for(auto entity : globals::spawn_dimension->entities.view<entt::entity>()) {
+            if(const auto head = globals::spawn_dimension->entities.try_get<entity::Head>(entity)) {
+                protocol::EntityHead head_packet;
+                head_packet.entity = entity;
+                head_packet.angles = head->angles;
+                protocol::send(session->peer, protocol::encode(head_packet));
+            }
+
+            if(const auto transform = globals::spawn_dimension->entities.try_get<entity::Transform>(entity)) {
+                protocol::EntityTransform transform_packet;
+                transform_packet.entity = entity;
+                transform_packet.angles = transform->angles;
+                transform_packet.chunk = transform->chunk;
+                transform_packet.local = transform->local;
+                protocol::send(session->peer, protocol::encode(transform_packet));
+            }
+
+            if(const auto velocity = globals::spawn_dimension->entities.try_get<entity::Velocity>(entity)) {
+                protocol::EntityVelocity velocity_packet;
+                velocity_packet.entity = entity;
+                velocity_packet.value = velocity->value;
+                protocol::send(session->peer, protocol::encode(velocity_packet));
+            }
+
+            if(globals::spawn_dimension->entities.all_of<entity::Player>(entity)) {
+                protocol::EntityPlayer player_packet;
+                player_packet.entity = entity;
+                protocol::send(session->peer, protocol::encode(player_packet));
+            }
+        }
+
+        session->dimension = globals::spawn_dimension;
+        session->player_entity = globals::spawn_dimension->entities.create();
+        entity::shared::create_player(globals::spawn_dimension, session->player_entity);
+
+        const auto& head = globals::spawn_dimension->entities.get<entity::Head>(session->player_entity);
+        const auto& transform = globals::spawn_dimension->entities.get<entity::Transform>(session->player_entity);
+        const auto& velocity = globals::spawn_dimension->entities.get<entity::Velocity>(session->player_entity);
+
+        protocol::EntityHead head_packet;
+        head_packet.entity = session->player_entity;
+        head_packet.angles = head.angles;
+
+        protocol::EntityTransform transform_packet;
+        transform_packet.entity = session->player_entity;
+        transform_packet.angles = transform.angles;
+        transform_packet.chunk = transform.chunk;
+        transform_packet.local = transform.local;
+
+        protocol::EntityVelocity velocity_packet;
+        velocity_packet.entity = session->player_entity;
+        velocity_packet.value = velocity.value;
+
+        protocol::EntityPlayer player_packet;
+        player_packet.entity = session->player_entity;
+
+        protocol::broadcast(globals::server_host, protocol::encode(head_packet));
+        protocol::broadcast(globals::server_host, protocol::encode(transform_packet));
+        protocol::broadcast(globals::server_host, protocol::encode(velocity_packet));
+        protocol::broadcast(globals::server_host, protocol::encode(player_packet));
+
+        protocol::SpawnPlayer spawn_packet;
+        spawn_packet.entity = session->player_entity;
+
+        // SpawnPlayer serves a different purpose compared to EntityPlayer
+        // The latter is used to construct entities (as in "attach a component")
+        // whilst the SpawnPlayer packet is used to notify client-side that the
+        // entity identifier in the packet is to be treated as the local player entity
+        protocol::send(session->peer, protocol::encode(spawn_packet));
+
+        protocol::ChatMessage message;
+        message.type = protocol::ChatMessage::PLAYER_JOIN;
+        message.sender = session->client_username;
+        message.message = std::string();
+
+        protocol::broadcast(globals::server_host, protocol::encode(message));
+
+        sessions::refresh_scoreboard();
+
+        return;
+    }
+
+    protocol::Disconnect response;
+    response.reason = "protocol.server_full";
+    protocol::send(packet.peer, protocol::encode(response));
+}
+
+static void on_disconnect_packet(const protocol::Disconnect& packet)
+{
+    if(Session* session = sessions::find(packet.peer)) {
+        protocol::ChatMessage message;
+        message.type = protocol::ChatMessage::PLAYER_LEAVE;
+        message.sender = session->client_username;
+        message.message = packet.reason;
+
+        protocol::broadcast(globals::server_host, protocol::encode(message), session->peer);
+
+        spdlog::info("{} disconnected ({})", session->client_username, packet.reason);
+
+        sessions::destroy(session);
+        sessions::refresh_scoreboard();
+    }
+}
+
+// NOTE: [sessions] is a good place for this since [receive]
+// handles entity data sent by players and [sessions] handles
+// everything else network related that is not player movement
+static void on_voxel_set(const world::VoxelSetEvent& event)
+{
+    protocol::SetVoxel packet;
+    packet.vpos = coord::to_voxel(event.cpos, event.lpos);
+    packet.voxel = event.voxel ? event.voxel->get_id() : NULL_VOXEL_ID;
+    packet.flags = 0U; // UNDONE
+    protocol::broadcast(globals::server_host, protocol::encode(packet));
+}
+
+DimensionListener::DimensionListener(world::Dimension* dimension)
+{
+    this->dimension = dimension;
+}
+
+void DimensionListener::on_destroy_entity(const entt::registry& registry, entt::entity entity)
+{
+    protocol::RemoveEntity packet;
+    packet.entity = entity;
+    sessions::broadcast(dimension, protocol::encode(packet));
+}
+
+void sessions::init(void)
+{
+    globals::server_config.add_value("sessions.strict_version_matching", strict_version_matching);
+    globals::server_config.add_value("sessions.max_players", sessions::max_players);
+
+    globals::dispatcher.sink<protocol::LoginRequest>().connect<&on_login_request_packet>();
+    globals::dispatcher.sink<protocol::Disconnect>().connect<&on_disconnect_packet>();
+
+    globals::dispatcher.sink<world::VoxelSetEvent>().connect<&on_voxel_set>();
+}
+
+void sessions::init_late(void)
+{
+    sessions::num_players = 0U;
+
+    username_map.clear();
+    identity_map.clear();
+    sessions_vector.resize(sessions::max_players.get_value(), Session());
+
+    for(unsigned int i = 0U; i < sessions::max_players.get_value(); ++i) {
+        sessions_vector[i].client_index = UINT16_MAX;
+        sessions_vector[i].client_identity = UINT64_MAX;
+        sessions_vector[i].client_username = std::string();
+        sessions_vector[i].player_entity = entt::null;
+        sessions_vector[i].peer = nullptr;
+    }
+}
+
+void sessions::init_post_universe(void)
+{
+    for(auto& dimension : globals::dimensions) {
+        dimension_listeners.push_back(DimensionListener(dimension.second));
+        dimension.second->entities.on_destroy<entt::entity>().connect<&DimensionListener::on_destroy_entity>(dimension_listeners.back());
+    }
+}
+
+void sessions::shutdown(void)
+{
+    username_map.clear();
+    identity_map.clear();
+    sessions_vector.clear();
+    dimension_listeners.clear();
+}
+
+Session* sessions::create(ENetPeer* peer, std::string_view client_username)
+{
+    for(unsigned int i = 0U; i < sessions::max_players.get_value(); ++i) {
+        if(!sessions_vector[i].peer) {
+            std::uint64_t client_identity = math::crc64(client_username.data(), client_username.size());
+
+            sessions_vector[i].client_index = i;
+            sessions_vector[i].client_identity = client_identity;
+            sessions_vector[i].client_username = client_username;
+            sessions_vector[i].player_entity = entt::null;
+            sessions_vector[i].peer = peer;
+
+            username_map[std::string(client_username)] = &sessions_vector[i];
+            identity_map[client_identity] = &sessions_vector[i];
+
+            peer->data = &sessions_vector[i];
+
+            sessions::num_players += 1U;
+
+            return &sessions_vector[i];
+        }
+    }
+
+    return nullptr;
+}
+
+Session* sessions::find(std::string_view client_username)
+{
+    const auto it = username_map.find(std::string(client_username));
+    if(it != username_map.cend()) {
+        return it->second;
+    }
+    else {
+        return nullptr;
+    }
+}
+
+Session* sessions::find(std::uint16_t client_index)
+{
+    if(client_index < sessions_vector.size()) {
+        if(!sessions_vector[client_index].peer) {
+            return nullptr;
+        }
+        else {
+            return &sessions_vector[client_index];
+        }
+    }
+
+    return nullptr;
+}
+
+Session* sessions::find(std::uint64_t client_identity)
+{
+    const auto it = identity_map.find(client_identity);
+
+    if(it != identity_map.cend()) {
+        return it->second;
+    }
+    else {
+        return nullptr;
+    }
+}
+
+Session* sessions::find(ENetPeer* peer)
+{
+    if(peer != nullptr) {
+        return reinterpret_cast<Session*>(peer->data);
+    }
+    else {
+        return nullptr;
+    }
+}
+
+void sessions::destroy(Session* session)
+{
+    if(session) {
+        if(session->peer) {
+            // Make sure we don't leave a mark
+            session->peer->data = nullptr;
+        }
+
+        if(session->dimension) {
+            session->dimension->entities.destroy(session->player_entity);
+        }
+
+        username_map.erase(session->client_username);
+        identity_map.erase(session->client_identity);
+
+        session->client_index = UINT16_MAX;
+        session->client_identity = UINT64_MAX;
+        session->client_username = std::string();
+        session->player_entity = entt::null;
+        session->peer = nullptr;
+
+        sessions::num_players -= 1U;
+    }
+}
+
+void sessions::broadcast(const world::Dimension* dimension, ENetPacket* packet)
+{
+    for(const auto& session : sessions_vector) {
+        if(session.peer && (session.dimension == dimension)) {
+            enet_peer_send(session.peer, protocol::CHANNEL, packet);
+        }
+    }
+}
+
+void sessions::broadcast(const world::Dimension* dimension, ENetPacket* packet, ENetPeer* except)
+{
+    for(const auto& session : sessions_vector) {
+        if(session.peer && (session.peer != except)) {
+            enet_peer_send(session.peer, protocol::CHANNEL, packet);
+        }
+    }
+}
+
+void sessions::refresh_scoreboard(void)
+{
+    protocol::ScoreboardUpdate packet;
+
+    for(std::size_t i = 0; i < sessions::max_players.get_value(); ++i) {
+        if(sessions_vector[i].peer) {
+            packet.names.push_back(sessions_vector[i].client_username);
+        }
+    }
+
+    protocol::broadcast(globals::server_host, protocol::encode(packet));
+}
diff --git a/src/game/server/sessions.hh b/src/game/server/sessions.hh
new file mode 100644
index 0000000..656b76d
--- /dev/null
+++ b/src/game/server/sessions.hh
@@ -0,0 +1,55 @@
+#pragma once
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace config
+{
+class Unsigned;
+} // namespace config
+
+struct Session final {
+    std::uint16_t client_index;
+    std::uint64_t client_identity;
+    std::string client_username;
+    entt::entity player_entity;
+    world::Dimension* dimension;
+    ENetPeer* peer;
+};
+
+namespace sessions
+{
+extern config::Unsigned max_players;
+extern unsigned int num_players;
+} // namespace sessions
+
+namespace sessions
+{
+void init(void);
+void init_late(void);
+void init_post_universe(void);
+void shutdown(void);
+} // namespace sessions
+
+namespace sessions
+{
+Session* create(ENetPeer* peer, std::string_view client_username);
+Session* find(std::string_view client_username);
+Session* find(std::uint16_t client_index);
+Session* find(std::uint64_t client_identity);
+Session* find(ENetPeer* peer);
+void destroy(Session* session);
+} // namespace sessions
+
+namespace sessions
+{
+void broadcast(const world::Dimension* dimension, ENetPacket* packet);
+void broadcast(const world::Dimension* dimension, ENetPacket* packet, ENetPeer* except);
+} // namespace sessions
+
+namespace sessions
+{
+void refresh_scoreboard(void);
+} // namespace sessions
diff --git a/src/game/server/status.cc b/src/game/server/status.cc
new file mode 100644
index 0000000..9414a76
--- /dev/null
+++ b/src/game/server/status.cc
@@ -0,0 +1,30 @@
+#include "server/pch.hh"
+
+#include "server/status.hh"
+
+#include "core/config/number.hh"
+
+#include "core/version.hh"
+
+#include "shared/protocol.hh"
+#include "shared/splash.hh"
+
+#include "server/globals.hh"
+#include "server/sessions.hh"
+
+static void on_status_request_packet(const protocol::StatusRequest& packet)
+{
+    protocol::StatusResponse response;
+    response.game_version_major = version::major;
+    response.max_players = sessions::max_players.get_value();
+    response.num_players = sessions::num_players;
+    response.motd = splash::get();
+    response.game_version_minor = version::minor;
+    response.game_version_patch = version::patch;
+    protocol::send(packet.peer, protocol::encode(response));
+}
+
+void status::init(void)
+{
+    globals::dispatcher.sink<protocol::StatusRequest>().connect<&on_status_request_packet>();
+}
diff --git a/src/game/server/status.hh b/src/game/server/status.hh
new file mode 100644
index 0000000..35370a0
--- /dev/null
+++ b/src/game/server/status.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace status
+{
+void init(void);
+} // namespace status
diff --git a/src/game/server/vserver.ico b/src/game/server/vserver.ico
new file mode 100644
index 0000000..02ff006
--- /dev/null
+++ b/src/game/server/vserver.ico
diff --git a/src/game/server/vserver.rc b/src/game/server/vserver.rc
new file mode 100644
index 0000000..b6828bf
--- /dev/null
+++ b/src/game/server/vserver.rc
@@ -0,0 +1 @@
+IDI_ICON1 ICON DISCARDABLE "vserver.ico"
diff --git a/src/game/server/whitelist.cc b/src/game/server/whitelist.cc
new file mode 100644
index 0000000..3f1c413
--- /dev/null
+++ b/src/game/server/whitelist.cc
@@ -0,0 +1,102 @@
+#include "server/pch.hh"
+
+#include "server/whitelist.hh"
+
+#include "core/config/boolean.hh"
+#include "core/config/string.hh"
+
+#include "core/io/config_map.hh"
+#include "core/io/physfs.hh"
+
+#include "core/math/crc64.hh"
+
+#include "core/utils/string.hh"
+
+#include "server/game.hh"
+#include "server/globals.hh"
+
+constexpr static std::string_view DEFAULT_FILENAME = "whitelist.txt";
+constexpr static char SEPARATOR_CHAR = ':';
+
+config::Boolean whitelist::enabled(false);
+config::String whitelist::filename(DEFAULT_FILENAME);
+
+static emhash8::HashMap<std::string, std::uint64_t> whitelist_map;
+
+void whitelist::init(void)
+{
+    globals::server_config.add_value("whitelist.enabled", whitelist::enabled);
+    globals::server_config.add_value("whitelist.filename", whitelist::filename);
+}
+
+void whitelist::init_late(void)
+{
+    whitelist_map.clear();
+
+    if(!whitelist::enabled.get_value()) {
+        // Not enabled, shouldn't
+        // even bother with parsing
+        // the whitelist file
+        return;
+    }
+
+    if(utils::is_whitespace(whitelist::filename.get_value())) {
+        spdlog::warn("whitelist: enabled but filename is empty, using default ({})", DEFAULT_FILENAME);
+        whitelist::filename.set(DEFAULT_FILENAME);
+    }
+
+    PHYSFS_File* file = PHYSFS_openRead(whitelist::filename.c_str());
+
+    if(file == nullptr) {
+        spdlog::warn("whitelist: {}: {}", whitelist::filename.get(), io::physfs_error());
+        whitelist::enabled.set_value(false);
+        return;
+    }
+
+    auto source = std::string(PHYSFS_fileLength(file), char(0x00));
+    PHYSFS_readBytes(file, source.data(), source.size());
+    PHYSFS_close(file);
+
+    std::istringstream stream(source);
+    std::string line;
+
+    while(std::getline(stream, line)) {
+        const auto location = line.find_last_of(SEPARATOR_CHAR);
+
+        if(location == std::string::npos) {
+            // Entries that don't define a password field default
+            // to the global server password; this allows easier adding
+            // of guest accounts which can later be edited to use a better password
+            whitelist_map[line] = server_game::password_hash;
+        }
+        else {
+            const auto username = line.substr(0, location);
+            const auto password = line.substr(location + 1);
+            whitelist_map[username] = math::crc64(password);
+        }
+    }
+
+    PHYSFS_close(file);
+}
+
+void whitelist::shutdown(void)
+{
+    // UNDONE: implement saving
+}
+
+bool whitelist::contains(std::string_view username)
+{
+    return whitelist_map.contains(std::string(username));
+}
+
+bool whitelist::matches(std::string_view username, std::uint64_t password_hash)
+{
+    const auto it = whitelist_map.find(std::string(username));
+
+    if(it == whitelist_map.cend()) {
+        // Not whitelisted, no match
+        return false;
+    }
+
+    return it->second == password_hash;
+}
diff --git a/src/game/server/whitelist.hh b/src/game/server/whitelist.hh
new file mode 100644
index 0000000..4695d16
--- /dev/null
+++ b/src/game/server/whitelist.hh
@@ -0,0 +1,26 @@
+#pragma once
+
+namespace config
+{
+class Boolean;
+class String;
+} // namespace config
+
+namespace whitelist
+{
+extern config::Boolean enabled;
+extern config::String filename;
+} // namespace whitelist
+
+namespace whitelist
+{
+void init(void);
+void init_late(void);
+void shutdown(void);
+} // namespace whitelist
+
+namespace whitelist
+{
+bool contains(std::string_view username);
+bool matches(std::string_view username, std::uint64_t password_hash);
+} // namespace whitelist
diff --git a/src/game/server/world/CMakeLists.txt b/src/game/server/world/CMakeLists.txt
new file mode 100644
index 0000000..58a2216
--- /dev/null
+++ b/src/game/server/world/CMakeLists.txt
@@ -0,0 +1,12 @@
+target_sources(vserver PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/inhabited.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/overworld.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/overworld.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/random_tick.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/random_tick.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/universe.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/universe.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/unloader.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/unloader.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/worldgen.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/worldgen.hh")
diff --git a/src/game/server/world/inhabited.hh b/src/game/server/world/inhabited.hh
new file mode 100644
index 0000000..57008e9
--- /dev/null
+++ b/src/game/server/world/inhabited.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace world
+{
+struct Inhabited final {};
+} // namespace world
diff --git a/src/game/server/world/overworld.cc b/src/game/server/world/overworld.cc
new file mode 100644
index 0000000..1a558c1
--- /dev/null
+++ b/src/game/server/world/overworld.cc
@@ -0,0 +1,396 @@
+#include "server/pch.hh"
+
+#include "server/world/overworld.hh"
+
+#include "core/math/vectors.hh"
+
+#include "shared/world/voxel.hh"
+#include "shared/world/voxel_storage.hh"
+
+#include "shared/coord.hh"
+#include "shared/game_voxels.hh"
+
+// FIXME: load these from a file
+static void compute_tree_feature(unsigned int height, world::Feature& feature, const world::Voxel* log_voxel,
+    const world::Voxel* leaves_voxel)
+{
+    // Ensure the tree height is too small
+    height = glm::max<unsigned int>(height, 4U);
+
+    // Put down a single piece of dirt
+    feature.push_back({ voxel_pos(0, -1, 0), game_voxels::dirt, true });
+
+    // Generate tree stem
+    for(unsigned int i = 0; i < height; ++i) {
+        feature.push_back({ voxel_pos(0, i, 0), log_voxel, true });
+    }
+
+    auto leaves_start = height - 3U;
+    auto leaves_thick_end = height - 2U;
+    auto leaves_thin_end = height - 1U;
+
+    // Generate the thin 3x3 layer of leaves that
+    // starts from leaves_start and ends at leaves_thin_end
+    for(unsigned int i = leaves_start; i <= leaves_thin_end; ++i) {
+        feature.push_back({ local_pos(-1, i, -1), leaves_voxel, false });
+        feature.push_back({ local_pos(-1, i, +0), leaves_voxel, false });
+        feature.push_back({ local_pos(-1, i, +1), leaves_voxel, false });
+        feature.push_back({ local_pos(+0, i, -1), leaves_voxel, false });
+        feature.push_back({ local_pos(+0, i, +1), leaves_voxel, false });
+        feature.push_back({ local_pos(+1, i, -1), leaves_voxel, false });
+        feature.push_back({ local_pos(+1, i, +0), leaves_voxel, false });
+        feature.push_back({ local_pos(+1, i, +1), leaves_voxel, false });
+    }
+
+    // Generate the tree cap; a 3x3 patch of leaves
+    // that is slapped right on top of the thin 3x3 layer
+    feature.push_back({ local_pos(-1, height, +0), leaves_voxel, false });
+    feature.push_back({ local_pos(+0, height, -1), leaves_voxel, false });
+    feature.push_back({ local_pos(+0, height, +0), leaves_voxel, false });
+    feature.push_back({ local_pos(+0, height, +1), leaves_voxel, false });
+    feature.push_back({ local_pos(+1, height, +0), leaves_voxel, false });
+
+    // Generate the thin 5x5 layer of leaves that
+    // starts from leaves_start and ends at leaves_thin_end
+    for(unsigned int i = leaves_start; i <= leaves_thick_end; ++i) {
+        feature.push_back({ local_pos(-1, i, -2), leaves_voxel, false });
+        feature.push_back({ local_pos(-1, i, +2), leaves_voxel, false });
+        feature.push_back({ local_pos(-2, i, -1), leaves_voxel, false });
+        feature.push_back({ local_pos(-2, i, -2), leaves_voxel, false });
+        feature.push_back({ local_pos(-2, i, +0), leaves_voxel, false });
+        feature.push_back({ local_pos(-2, i, +1), leaves_voxel, false });
+        feature.push_back({ local_pos(-2, i, +2), leaves_voxel, false });
+        feature.push_back({ local_pos(+0, i, -2), leaves_voxel, false });
+        feature.push_back({ local_pos(+0, i, +2), leaves_voxel, false });
+        feature.push_back({ local_pos(+1, i, -2), leaves_voxel, false });
+        feature.push_back({ local_pos(+1, i, +2), leaves_voxel, false });
+        feature.push_back({ local_pos(+2, i, -1), leaves_voxel, false });
+        feature.push_back({ local_pos(+2, i, -2), leaves_voxel, false });
+        feature.push_back({ local_pos(+2, i, +0), leaves_voxel, false });
+        feature.push_back({ local_pos(+2, i, +1), leaves_voxel, false });
+        feature.push_back({ local_pos(+2, i, +2), leaves_voxel, false });
+    }
+}
+
+world::Overworld::Overworld(std::string_view name) : Dimension(name, -30.0f)
+{
+    m_bottommost_chunk.set_limits(-64, -4);
+    m_terrain_variation.set_limits(16, 256);
+
+    compute_tree_feature(4U, m_feat_tree[0], game_voxels::oak_log, game_voxels::oak_leaves);
+    compute_tree_feature(5U, m_feat_tree[1], game_voxels::oak_log, game_voxels::oak_leaves);
+    compute_tree_feature(6U, m_feat_tree[2], game_voxels::oak_log, game_voxels::oak_leaves);
+    compute_tree_feature(8U, m_feat_tree[3], game_voxels::oak_log, game_voxels::oak_leaves);
+}
+
+void world::Overworld::init(io::ConfigMap& config)
+{
+    m_terrain_variation.set_value(64);
+    m_bottommost_chunk.set_value(-4);
+
+    config.add_value("overworld.terrain_variation", m_terrain_variation);
+    config.add_value("overworld.bottommost_chunk", m_bottommost_chunk);
+}
+
+void world::Overworld::init_late(std::uint64_t global_seed)
+{
+    std::mt19937_64 twister(global_seed);
+
+    m_fnl_variation = fnlCreateState();
+    m_fnl_variation.seed = static_cast<int>(twister());
+    m_fnl_variation.noise_type = FNL_NOISE_PERLIN;
+    m_fnl_variation.frequency = 0.001f;
+
+    m_fnl_terrain = fnlCreateState();
+    m_fnl_terrain.seed = static_cast<int>(twister());
+    m_fnl_terrain.noise_type = FNL_NOISE_OPENSIMPLEX2S;
+    m_fnl_terrain.fractal_type = FNL_FRACTAL_FBM;
+    m_fnl_terrain.frequency = 0.005f;
+    m_fnl_terrain.octaves = 4;
+
+    m_fnl_caves_a = fnlCreateState();
+    m_fnl_caves_a.seed = static_cast<int>(twister());
+    m_fnl_caves_a.noise_type = FNL_NOISE_PERLIN;
+    m_fnl_caves_a.fractal_type = FNL_FRACTAL_RIDGED;
+    m_fnl_caves_a.frequency = 0.0125f;
+    m_fnl_caves_a.octaves = 1;
+
+    m_fnl_caves_b = fnlCreateState();
+    m_fnl_caves_b.seed = static_cast<int>(twister());
+    m_fnl_caves_b.noise_type = FNL_NOISE_OPENSIMPLEX2S;
+    m_fnl_caves_b.fractal_type = FNL_FRACTAL_RIDGED;
+    m_fnl_caves_b.frequency = 0.0125f;
+    m_fnl_caves_b.octaves = 1;
+
+    m_fnl_nvdi = fnlCreateState();
+    m_fnl_nvdi.seed = static_cast<int>(twister());
+    m_fnl_nvdi.noise_type = FNL_NOISE_OPENSIMPLEX2S;
+    m_fnl_nvdi.frequency = 1.0f;
+
+    m_metamap.clear();
+}
+
+bool world::Overworld::generate(const chunk_pos& cpos, VoxelStorage& voxels)
+{
+    if(cpos.y <= m_bottommost_chunk.get_value()) {
+        // If the player asks the generator
+        // to generate a lot of stuff below
+        // the surface, it will happily chew
+        // through all the server threads
+        return false;
+    }
+
+    voxels.fill(NULL_VOXEL_ID);
+
+    m_mutex.lock();
+    generate_terrain(cpos, voxels);
+    m_mutex.unlock();
+
+    m_mutex.lock();
+    generate_surface(cpos, voxels);
+    m_mutex.unlock();
+
+    m_mutex.lock();
+    generate_caves(cpos, voxels);
+    m_mutex.unlock();
+
+    m_mutex.lock();
+    generate_features(cpos, voxels);
+    m_mutex.unlock();
+
+    return true;
+}
+
+bool world::Overworld::is_inside_cave(const voxel_pos& vpos)
+{
+    auto vpos_x = static_cast<float>(vpos.x);
+    auto vpos_y = static_cast<float>(vpos.y) * 2.0f;
+    auto vpos_z = static_cast<float>(vpos.z);
+
+    auto noise_a = fnlGetNoise3D(&m_fnl_caves_a, vpos_x, vpos_y, vpos_z);
+    auto noise_b = fnlGetNoise3D(&m_fnl_caves_b, vpos_x, vpos_y, vpos_z);
+    return (noise_a > 0.95f) && (noise_b > 0.85f);
+}
+
+bool world::Overworld::is_inside_terrain(const voxel_pos& vpos)
+{
+    auto vpos_x = static_cast<float>(vpos.x);
+    auto vpos_y = static_cast<float>(vpos.y);
+    auto vpos_z = static_cast<float>(vpos.z);
+
+    auto variation_noise = fnlGetNoise3D(&m_fnl_terrain, vpos_x, vpos_y, vpos_z);
+    auto variation = m_terrain_variation.get_value() * (1.0f - (variation_noise * variation_noise));
+    auto noise = variation * fnlGetNoise3D(&m_fnl_terrain, vpos_x, vpos_y, vpos_z) - vpos.y;
+    return noise > 0.0f;
+}
+
+const world::Overworld_Metadata& world::Overworld::get_or_create_metadata(const chunk_pos_xz& cpos)
+{
+    auto it = m_metamap.find(cpos);
+
+    if(it != m_metamap.cend()) {
+        // Metadata is present
+        return it->second;
+    }
+
+    auto& metadata = m_metamap.insert_or_assign(cpos, Overworld_Metadata()).first->second;
+    metadata.entropy.fill(std::numeric_limits<std::uint64_t>::max());
+    metadata.heightmap.fill(std::numeric_limits<voxel_pos::value_type>::min());
+
+    auto twister = std::mt19937_64(std::hash<chunk_pos_xz>()(cpos));
+    auto variation = m_terrain_variation.get_value();
+
+    // Generator might need some randomness
+    // that depends on 2D coordinates, so we
+    // generate this entropy ahead of time
+    for(int i = 0; i < CHUNK_AREA; ++i) {
+        metadata.entropy[i] = twister();
+    }
+
+    // Generate speculative heightmap;
+    // Cave generation might have issues with placing
+    // surface features such as trees but I genuinely don't give a shit
+    for(int lx = 0; lx < CHUNK_SIZE; lx += 1) {
+        for(int lz = 0; lz < CHUNK_SIZE; lz += 1) {
+            auto hdx = static_cast<std::size_t>(lx + lz * CHUNK_SIZE);
+            auto vpos = coord::to_voxel(chunk_pos(cpos.x, 0, cpos.y), local_pos(lx, 0, lz));
+
+            for(vpos.y = variation; vpos.y >= -variation; vpos.y -= 1) {
+                if(is_inside_terrain(vpos)) {
+                    metadata.heightmap[hdx] = vpos.y;
+                    break;
+                }
+            }
+        }
+    }
+
+    auto cpos_x = static_cast<float>(cpos.x);
+    auto cpos_y = static_cast<float>(cpos.y);
+
+    auto nvdi_value = 0.5f + 0.5f * fnlGetNoise2D(&m_fnl_nvdi, cpos_x, cpos_y);
+    auto tree_density = (nvdi_value >= 0.33f) ? static_cast<unsigned int>(glm::floor(nvdi_value * 4.0f)) : 0U;
+
+    for(unsigned int i = 0U; i < tree_density; ++i) {
+        auto lpos = local_pos((twister() % CHUNK_SIZE), (twister() % OW_NUM_TREES), (twister() % CHUNK_SIZE));
+        auto is_unique = true;
+
+        for(const auto& check_lpos : metadata.trees) {
+            if(math::distance2(check_lpos, lpos) <= 9) {
+                is_unique = false;
+                break;
+            }
+        }
+
+        if(is_unique) {
+            metadata.trees.push_back(lpos);
+        }
+    }
+
+    return metadata;
+}
+
+void world::Overworld::generate_terrain(const chunk_pos& cpos, VoxelStorage& voxels)
+{
+    auto& metadata = get_or_create_metadata(chunk_pos_xz(cpos.x, cpos.z));
+    auto variation = m_terrain_variation.get_value();
+
+    for(unsigned long i = 0; i < CHUNK_VOLUME; ++i) {
+        auto lpos = coord::to_local(i);
+        auto vpos = coord::to_voxel(cpos, lpos);
+
+        if(vpos.y > variation) {
+            voxels[i] = NULL_VOXEL_ID;
+            continue;
+        }
+
+        if(vpos.y < -variation) {
+            voxels[i] = game_voxels::stone->get_id();
+            continue;
+        }
+
+        if(is_inside_terrain(vpos)) {
+            voxels[i] = game_voxels::stone->get_id();
+            continue;
+        }
+    }
+}
+
+void world::Overworld::generate_surface(const chunk_pos& cpos, VoxelStorage& voxels)
+{
+    auto& metadata = get_or_create_metadata(chunk_pos_xz(cpos.x, cpos.z));
+    auto variation = m_terrain_variation.get_value();
+
+    for(unsigned long i = 0; i < CHUNK_VOLUME; ++i) {
+        auto lpos = coord::to_local(i);
+        auto vpos = coord::to_voxel(cpos, lpos);
+        auto hdx = static_cast<std::size_t>(lpos.x + lpos.z * CHUNK_SIZE);
+
+        if((vpos.y > variation) || (vpos.y < -variation)) {
+            // Speculative optimization
+            continue;
+        }
+
+        if(voxels[i] == NULL_VOXEL_ID) {
+            // Surface voxel checks only apply for solid voxels;
+            // it's kind of obvious you can't replace air with grass
+            continue;
+        }
+
+        unsigned int depth = 0U;
+
+        for(unsigned int dy = 0U; dy < 5U; dy += 1U) {
+            auto d_lpos = local_pos(lpos.x, lpos.y + dy + 1, lpos.z);
+            auto d_vpos = coord::to_voxel(cpos, d_lpos);
+            auto d_index = coord::to_index(d_lpos);
+
+            if(d_lpos.y >= CHUNK_SIZE) {
+                if(!is_inside_terrain(d_vpos)) {
+                    break;
+                }
+
+                depth += 1U;
+            }
+            else {
+                if(voxels[d_index] == NULL_VOXEL_ID) {
+                    break;
+                }
+
+                depth += 1U;
+            }
+        }
+
+        if(depth < 5U) {
+            if(depth == 0U) {
+                voxels[i] = game_voxels::grass->get_id();
+            }
+            else {
+                voxels[i] = game_voxels::dirt->get_id();
+            }
+        }
+    }
+}
+
+void world::Overworld::generate_caves(const chunk_pos& cpos, VoxelStorage& voxels)
+{
+    auto& metadata = get_or_create_metadata(chunk_pos_xz(cpos.x, cpos.z));
+    auto variation = m_terrain_variation.get_value();
+
+    for(unsigned long i = 0U; i < CHUNK_VOLUME; ++i) {
+        auto lpos = coord::to_local(i);
+        auto vpos = coord::to_voxel(cpos, lpos);
+
+        if(vpos.y > variation) {
+            // Speculative optimization - there's no solid
+            // terrain above variation to carve caves out from
+            continue;
+        }
+
+        if(is_inside_cave(vpos)) {
+            voxels[i] = NULL_VOXEL_ID;
+            continue;
+        }
+    }
+}
+
+void world::Overworld::generate_features(const chunk_pos& cpos, VoxelStorage& voxels)
+{
+    const chunk_pos_xz tree_chunks[] = {
+        chunk_pos_xz(cpos.x - 0, cpos.z - 1),
+        chunk_pos_xz(cpos.x - 1, cpos.z - 1),
+        chunk_pos_xz(cpos.x - 1, cpos.z + 0),
+        chunk_pos_xz(cpos.x - 1, cpos.z + 1),
+        chunk_pos_xz(cpos.x + 0, cpos.z + 0),
+        chunk_pos_xz(cpos.x + 0, cpos.z + 1),
+        chunk_pos_xz(cpos.x + 1, cpos.z - 1),
+        chunk_pos_xz(cpos.x + 1, cpos.z + 0),
+        chunk_pos_xz(cpos.x + 1, cpos.z + 1),
+    };
+
+    for(unsigned int i = 0U; i < math::array_size(tree_chunks); ++i) {
+        const auto& cpos_xz = tree_chunks[i];
+        const auto& metadata = get_or_create_metadata(cpos_xz);
+
+        for(const auto& tree_info : metadata.trees) {
+            auto hdx = static_cast<std::size_t>(tree_info.x + tree_info.z * CHUNK_SIZE);
+            auto height = metadata.heightmap[hdx];
+
+            if(height == std::numeric_limits<voxel_pos::value_type>::min()) {
+                // What happened? Cave happened
+                continue;
+            }
+
+            auto cpos_xyz = chunk_pos(cpos_xz.x, 0, cpos_xz.y);
+            auto lpos_xyz = local_pos(tree_info.x, 0, tree_info.z);
+
+            auto vpos = coord::to_voxel(cpos_xyz, lpos_xyz);
+            vpos.y = height;
+
+            if(is_inside_cave(vpos)) {
+                // Cave is in the way
+                continue;
+            }
+
+            m_feat_tree[tree_info.y].place(vpos + DIR_UP<voxel_pos::value_type>, cpos, voxels);
+        }
+    }
+}
diff --git a/src/game/server/world/overworld.hh b/src/game/server/world/overworld.hh
new file mode 100644
index 0000000..f3fc8cf
--- /dev/null
+++ b/src/game/server/world/overworld.hh
@@ -0,0 +1,68 @@
+#pragma once
+
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/feature.hh"
+
+#include "shared/const.hh"
+
+constexpr static unsigned int OW_NUM_TREES = 4U;
+
+namespace world
+{
+struct Overworld_Metadata final {
+    world::dimension_entropy_map entropy;
+    world::dimension_height_map heightmap;
+    std::vector<local_pos> trees;
+};
+} // namespace world
+
+namespace world
+{
+class Overworld final : public Dimension {
+public:
+    explicit Overworld(std::string_view name);
+    virtual ~Overworld(void) = default;
+
+public:
+    virtual void init(io::ConfigMap& config) override;
+    virtual void init_late(std::uint64_t global_seed) override;
+    virtual bool generate(const chunk_pos& cpos, VoxelStorage& voxels) override;
+
+private:
+    bool is_inside_cave(const voxel_pos& vpos);
+    bool is_inside_terrain(const voxel_pos& vpos);
+
+private:
+    const Overworld_Metadata& get_or_create_metadata(const chunk_pos_xz& cpos);
+
+private:
+    void generate_terrain(const chunk_pos& cpos, VoxelStorage& voxels);
+    void generate_surface(const chunk_pos& cpos, VoxelStorage& voxels);
+    void generate_caves(const chunk_pos& cpos, VoxelStorage& voxels);
+    void generate_features(const chunk_pos& cpos, VoxelStorage& voxels);
+
+private:
+    config::Int m_terrain_variation;
+    config::Int m_bottommost_chunk;
+
+private:
+    emhash8::HashMap<chunk_pos_xz, Overworld_Metadata> m_metamap;
+
+private:
+    fnl_state m_fnl_variation;
+    fnl_state m_fnl_terrain;
+    fnl_state m_fnl_caves_a;
+    fnl_state m_fnl_caves_b;
+    fnl_state m_fnl_nvdi;
+
+private:
+    Feature m_feat_tree[OW_NUM_TREES];
+
+private:
+    std::mutex m_mutex;
+};
+} // namespace world
diff --git a/src/game/server/world/random_tick.cc b/src/game/server/world/random_tick.cc
new file mode 100644
index 0000000..c5fa47c
--- /dev/null
+++ b/src/game/server/world/random_tick.cc
@@ -0,0 +1,40 @@
+#include "server/pch.hh"
+
+#include "server/world/random_tick.hh"
+
+#include "core/config/number.hh"
+
+#include "core/io/config_map.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+#include "shared/world/voxel.hh"
+
+#include "shared/coord.hh"
+
+#include "server/globals.hh"
+
+static config::Int random_tick_speed(2, 1, 1000);
+static std::mt19937_64 random_source;
+
+void world::random_tick::init(void)
+{
+    globals::server_config.add_value("world.random_tick_speed", random_tick_speed);
+
+    random_source.seed(std::random_device {}());
+}
+
+void world::random_tick::tick(const chunk_pos& cpos, Chunk* chunk)
+{
+    assert(chunk);
+
+    for(int i = 0; i < random_tick_speed.get_value(); ++i) {
+        auto voxel_index = random_source() % CHUNK_VOLUME;
+        auto lpos = coord::to_local(voxel_index);
+        auto vpos = coord::to_voxel(cpos, lpos);
+
+        if(auto voxel = chunk->get_voxel(lpos)) {
+            voxel->on_tick(chunk->get_dimension(), vpos);
+        }
+    }
+}
diff --git a/src/game/server/world/random_tick.hh b/src/game/server/world/random_tick.hh
new file mode 100644
index 0000000..4ef1691
--- /dev/null
+++ b/src/game/server/world/random_tick.hh
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Chunk;
+} // namespace world
+
+namespace world::random_tick
+{
+void init(void);
+void tick(const chunk_pos& cpos, Chunk* chunk);
+} // namespace world::random_tick
diff --git a/src/game/server/world/universe.cc b/src/game/server/world/universe.cc
new file mode 100644
index 0000000..6d52951
--- /dev/null
+++ b/src/game/server/world/universe.cc
@@ -0,0 +1,222 @@
+#include "server/pch.hh"
+
+#include "server/world/universe.hh"
+
+#include "core/config/number.hh"
+#include "core/config/string.hh"
+
+#include "core/io/buffer.hh"
+#include "core/io/config_map.hh"
+#include "core/io/physfs.hh"
+
+#include "core/utils/epoch.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+
+#include "server/world/inhabited.hh"
+#include "server/world/overworld.hh"
+
+#include "server/globals.hh"
+
+struct DimensionMetadata final {
+    std::string config_path;
+    std::string zvox_dir;
+    io::ConfigMap config;
+};
+
+static config::String universe_name("save");
+
+static io::ConfigMap universe_config;
+static config::Unsigned64 universe_config_seed;
+static config::String universe_spawn_dimension("world");
+
+static std::string universe_config_path;
+static std::unordered_map<world::Dimension*, DimensionMetadata*> metadata_map;
+
+static std::string make_chunk_filename(const DimensionMetadata* metadata, const chunk_pos& cpos)
+{
+    const auto unsigned_x = static_cast<std::uint32_t>(cpos.x);
+    const auto unsigned_y = static_cast<std::uint32_t>(cpos.y);
+    const auto unsigned_z = static_cast<std::uint32_t>(cpos.z);
+    return std::format("{}/{:08X}-{:08X}-{:08X}.zvox", metadata->zvox_dir, unsigned_x, unsigned_y, unsigned_z);
+}
+
+static void add_new_dimension(world::Dimension* dimension)
+{
+    if(globals::dimensions.count(std::string(dimension->get_name()))) {
+        spdlog::critical("universe: dimension named {} already exists", dimension->get_name());
+        std::terminate();
+    }
+
+    auto dimension_dir = std::format("{}/{}", universe_name.get(), dimension->get_name());
+
+    if(!PHYSFS_mkdir(dimension_dir.c_str())) {
+        spdlog::critical("universe: {}: {}", dimension_dir, io::physfs_error());
+        std::terminate();
+    }
+
+    auto metadata = new DimensionMetadata;
+    metadata->config_path = std::format("{}/dimension.conf", dimension_dir);
+    metadata->zvox_dir = std::format("{}/chunk", dimension_dir);
+
+    if(!PHYSFS_mkdir(metadata->zvox_dir.c_str())) {
+        spdlog::critical("universe: {}: {}", metadata->zvox_dir, io::physfs_error());
+        std::terminate();
+    }
+
+    globals::dimensions.insert_or_assign(std::string(dimension->get_name()), dimension);
+
+    auto& mapped_metadata = metadata_map.insert_or_assign(dimension, metadata).first->second;
+
+    dimension->init(mapped_metadata->config);
+
+    mapped_metadata->config.load_file(mapped_metadata->config_path.c_str());
+
+    dimension->init_late(universe_config_seed.get_value());
+}
+
+static void internal_save_chunk(const DimensionMetadata* metadata, const world::Dimension* dimension, const chunk_pos& cpos,
+    const world::Chunk* chunk)
+{
+    auto path = make_chunk_filename(metadata, cpos);
+
+    io::WriteBuffer buffer;
+    chunk->get_voxels().serialize(buffer);
+
+    if(auto file = buffer.to_file(path.c_str())) {
+        PHYSFS_close(file);
+        return;
+    }
+}
+
+void world::universe::init(void)
+{
+    // If the world is newly created, the seed will
+    // be chosed based on the current system's view on UNIX time
+    universe_config_seed.set_value(utils::unix_microseconds());
+
+    // We're going to read files from directory named with
+    // the value of this config value. Since config is also
+    // read from command line, the [--universe <name>] parameter still works
+    globals::server_config.add_value("universe", universe_name);
+
+    universe_config.add_value("global_seed", universe_config_seed);
+    universe_config.add_value("spawn_dimension", universe_spawn_dimension);
+}
+
+void world::universe::init_late(void)
+{
+    const auto universe_dir = std::string(universe_name.get());
+
+    if(!PHYSFS_mkdir(universe_dir.c_str())) {
+        spdlog::critical("universe: {}: {}", universe_dir, io::physfs_error());
+        std::terminate();
+    }
+
+    universe_config_path = std::format("{}/universe.conf", universe_dir);
+    universe_config.load_file(universe_config_path.c_str());
+
+    add_new_dimension(new Overworld("world"));
+
+    // UNDONE: lua scripts to setup dimensions
+    if(globals::dimensions.empty()) {
+        spdlog::critical("universe: no dimensions");
+        std::terminate();
+    }
+
+    auto spawn_dimension = globals::dimensions.find(universe_spawn_dimension.get_value());
+
+    if(spawn_dimension == globals::dimensions.cend()) {
+        spdlog::critical("universe: {} is not a valid dimension name", universe_spawn_dimension.get());
+        std::terminate();
+    }
+
+    globals::spawn_dimension = spawn_dimension->second;
+}
+
+void world::universe::shutdown(void)
+{
+    for(const auto metadata : metadata_map) {
+        metadata.second->config.save_file(metadata.second->config_path.c_str());
+        delete metadata.second;
+    }
+
+    metadata_map.clear();
+
+    for(const auto dimension : globals::dimensions) {
+        world::universe::save_all_chunks(dimension.second);
+        delete dimension.second;
+    }
+
+    globals::dimensions.clear();
+    globals::spawn_dimension = nullptr;
+
+    universe_config.save_file(universe_config_path.c_str());
+}
+
+world::Chunk* world::universe::load_chunk(Dimension* dimension, const chunk_pos& cpos)
+{
+    if(auto chunk = dimension->find_chunk(cpos)) {
+        // Just return the existing chunk which is
+        // most probable to be up to date compared to
+        // whatever the hell is currently stored on disk
+        return chunk;
+    }
+
+    auto metadata = metadata_map.find(dimension);
+
+    if(metadata == metadata_map.cend()) {
+        // The dimension is for sure a weird one
+        return nullptr;
+    }
+
+    if(auto file = PHYSFS_openRead(make_chunk_filename(metadata->second, cpos).c_str())) {
+        VoxelStorage voxels;
+        io::ReadBuffer buffer(file);
+        voxels.deserialize(buffer);
+
+        PHYSFS_close(file);
+
+        auto chunk = dimension->create_chunk(cpos);
+        chunk->set_voxels(voxels);
+
+        // Make sure we're going to save it later
+        dimension->chunks.emplace_or_replace<Inhabited>(chunk->get_entity());
+
+        return chunk;
+    }
+
+    return nullptr;
+}
+
+void world::universe::save_chunk(Dimension* dimension, const chunk_pos& cpos)
+{
+    auto metadata = metadata_map.find(dimension);
+
+    if(metadata == metadata_map.cend()) {
+        // Cannot save a chunk in a dimension
+        // that doesn't have a metadata struct
+        return;
+    }
+
+    if(auto chunk = dimension->find_chunk(cpos)) {
+        internal_save_chunk(metadata->second, dimension, cpos, chunk);
+    }
+}
+
+void world::universe::save_all_chunks(Dimension* dimension)
+{
+    auto group = dimension->chunks.group(entt::get<ChunkComponent, Inhabited>);
+    auto metadata = metadata_map.find(dimension);
+
+    if(metadata == metadata_map.cend()) {
+        // Cannot save a chunk in a dimension
+        // that doesn't have a metadata struct
+        return;
+    }
+
+    for(auto [entity, chunk] : group.each()) {
+        internal_save_chunk(metadata->second, dimension, chunk.cpos, chunk.chunk);
+    }
+}
diff --git a/src/game/server/world/universe.hh b/src/game/server/world/universe.hh
new file mode 100644
index 0000000..e542eca
--- /dev/null
+++ b/src/game/server/world/universe.hh
@@ -0,0 +1,25 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Chunk;
+class Dimension;
+} // namespace world
+
+struct Session;
+
+namespace world::universe
+{
+void init(void);
+void init_late(void);
+void shutdown(void);
+} // namespace world::universe
+
+namespace world::universe
+{
+Chunk* load_chunk(Dimension* dimension, const chunk_pos& cpos);
+void save_chunk(Dimension* dimension, const chunk_pos& cpos);
+void save_all_chunks(Dimension* dimension);
+} // namespace world::universe
diff --git a/src/game/server/world/unloader.cc b/src/game/server/world/unloader.cc
new file mode 100644
index 0000000..4a3f4e1
--- /dev/null
+++ b/src/game/server/world/unloader.cc
@@ -0,0 +1,78 @@
+#include "server/pch.hh"
+
+#include "server/world/unloader.hh"
+
+#include "core/config/number.hh"
+
+#include "shared/entity/player.hh"
+#include "shared/entity/transform.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/chunk_aabb.hh"
+#include "shared/world/dimension.hh"
+
+#include "server/world/inhabited.hh"
+#include "server/world/universe.hh"
+
+#include "server/game.hh"
+#include "server/globals.hh"
+
+static void on_chunk_update(const world::ChunkUpdateEvent& event)
+{
+    event.dimension->chunks.emplace_or_replace<world::Inhabited>(event.chunk->get_entity());
+}
+
+static void on_voxel_set(const world::VoxelSetEvent& event)
+{
+    event.dimension->chunks.emplace_or_replace<world::Inhabited>(event.chunk->get_entity());
+}
+
+void world::unloader::init(void)
+{
+    globals::dispatcher.sink<world::ChunkUpdateEvent>().connect<&on_chunk_update>();
+    globals::dispatcher.sink<world::VoxelSetEvent>().connect<&on_voxel_set>();
+}
+
+void world::unloader::init_late(void)
+{
+}
+
+void world::unloader::fixed_update_late(Dimension* dimension)
+{
+    auto group = dimension->entities.group(entt::get<entity::Player, entity::Transform>);
+    auto boxes = std::vector<ChunkAABB>();
+
+    for(const auto [entity, transform] : group.each()) {
+        ChunkAABB aabb;
+        aabb.min = transform.chunk - static_cast<chunk_pos::value_type>(server_game::view_distance.get_value());
+        aabb.max = transform.chunk + static_cast<chunk_pos::value_type>(server_game::view_distance.get_value());
+        boxes.push_back(aabb);
+    }
+
+    auto view = dimension->chunks.view<ChunkComponent>();
+    auto chunk_in_view = false;
+
+    for(const auto [entity, chunk] : view.each()) {
+        chunk_in_view = false;
+
+        for(const auto& aabb : boxes) {
+            if(aabb.contains(chunk.cpos)) {
+                chunk_in_view = true;
+                break;
+            }
+        }
+
+        if(chunk_in_view) {
+            // The chunk is within view box of at least
+            // a single player; we shouldn't unload it now
+            continue;
+        }
+
+        if(dimension->chunks.any_of<Inhabited>(entity)) {
+            // Only store inhabited chunks on disk
+            world::universe::save_chunk(dimension, chunk.cpos);
+        }
+
+        dimension->remove_chunk(entity);
+    }
+}
diff --git a/src/game/server/world/unloader.hh b/src/game/server/world/unloader.hh
new file mode 100644
index 0000000..9682de6
--- /dev/null
+++ b/src/game/server/world/unloader.hh
@@ -0,0 +1,13 @@
+#pragma once
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace world::unloader
+{
+void init(void);
+void init_late(void);
+void fixed_update_late(Dimension* dimension);
+} // namespace world::unloader
diff --git a/src/game/server/world/worldgen.cc b/src/game/server/world/worldgen.cc
new file mode 100644
index 0000000..8b02b52
--- /dev/null
+++ b/src/game/server/world/worldgen.cc
@@ -0,0 +1,151 @@
+#include "server/pch.hh"
+
+#include "server/world/worldgen.hh"
+
+#include "core/io/cmdline.hh"
+
+#include "core/threading.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+
+#include "shared/protocol.hh"
+
+#include "server/world/inhabited.hh"
+
+#include "server/globals.hh"
+#include "server/sessions.hh"
+
+static bool aggressive_caching;
+
+static emhash8::HashMap<world::Dimension*, emhash8::HashMap<chunk_pos, std::unordered_set<Session*>>> active_tasks;
+
+class WorldgenTask final : public Task {
+public:
+    explicit WorldgenTask(world::Dimension* dimension, const chunk_pos& cpos);
+    virtual ~WorldgenTask(void) = default;
+    virtual void process(void) override;
+    virtual void finalize(void) override;
+
+private:
+    world::Dimension* m_dimension;
+    world::VoxelStorage m_voxels;
+    chunk_pos m_cpos;
+};
+
+WorldgenTask::WorldgenTask(world::Dimension* dimension, const chunk_pos& cpos)
+{
+    m_dimension = dimension;
+    m_voxels.fill(rand()); // trolling
+    m_cpos = cpos;
+}
+
+void WorldgenTask::process(void)
+{
+    if(!m_dimension->generate(m_cpos, m_voxels)) {
+        set_status(task_status::CANCELLED);
+    }
+}
+
+void WorldgenTask::finalize(void)
+{
+    auto dim_tasks = active_tasks.find(m_dimension);
+
+    if(dim_tasks == active_tasks.cend()) {
+        // Normally this should never happen but
+        // one can never be sure about anything
+        // when that anything is threaded out
+        return;
+    }
+
+    auto it = dim_tasks->second.find(m_cpos);
+
+    if(it == dim_tasks->second.cend()) {
+        // Normally this should never happen but
+        // one can never be sure about anything
+        // when that anything is threaded out
+        return;
+    }
+
+    auto chunk = m_dimension->create_chunk(m_cpos);
+    chunk->set_voxels(m_voxels);
+
+    if(aggressive_caching) {
+        // Marking the chunk with InhabitedComponent makes
+        // it so that it is saved regardles of whether it was
+        // modified by players or not. This isn't particularly
+        // good for server-side disk usage but it might improve performance
+        m_dimension->chunks.emplace<world::Inhabited>(chunk->get_entity());
+    }
+
+    protocol::ChunkVoxels response;
+    response.voxels = m_voxels;
+    response.chunk = m_cpos;
+
+    auto packet = protocol::encode(response);
+
+    for(auto session : it->second) {
+        if(session->peer) {
+            // Respond with the voxels to every session
+            // that has requested this specific chunk for this dimension
+            enet_peer_send(session->peer, protocol::CHANNEL, packet);
+        }
+    }
+
+    dim_tasks->second.erase(it);
+
+    if(dim_tasks->second.empty()) {
+        // There are no more requests
+        // to generate a chunk for that
+        // dimension, at least for now
+        active_tasks.erase(dim_tasks);
+    }
+}
+
+void world::worldgen::init(void)
+{
+    aggressive_caching = io::cmdline::contains("aggressive-caching");
+}
+
+bool world::worldgen::is_generating(Dimension* dimension, const chunk_pos& cpos)
+{
+    auto dim_tasks = active_tasks.find(dimension);
+
+    if(dim_tasks == active_tasks.cend()) {
+        // No tasks for this dimension
+        return false;
+    }
+
+    auto it = dim_tasks->second.find(cpos);
+
+    if(it == dim_tasks->second.cend()) {
+        // Not generating this chunk
+        return false;
+    }
+
+    return true;
+}
+
+void world::worldgen::request_chunk(Session* session, const chunk_pos& cpos)
+{
+    if(session->dimension) {
+        auto dim_tasks = active_tasks.find(session->dimension);
+
+        if(dim_tasks == active_tasks.cend()) {
+            dim_tasks = active_tasks.emplace(session->dimension, emhash8::HashMap<chunk_pos, std::unordered_set<Session*>>()).first;
+        }
+
+        auto it = dim_tasks->second.find(cpos);
+
+        if(it == dim_tasks->second.cend()) {
+            auto& sessions = dim_tasks->second.insert_or_assign(cpos, std::unordered_set<Session*>()).first->second;
+            sessions.insert(session);
+
+            threading::submit<WorldgenTask>(session->dimension, cpos);
+
+            return;
+        }
+
+        it->second.insert(session);
+    }
+}
diff --git a/src/game/server/world/worldgen.hh b/src/game/server/world/worldgen.hh
new file mode 100644
index 0000000..30d7070
--- /dev/null
+++ b/src/game/server/world/worldgen.hh
@@ -0,0 +1,21 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+struct Session;
+
+namespace world::worldgen
+{
+void init(void);
+} // namespace world::worldgen
+
+namespace world::worldgen
+{
+bool is_generating(Dimension* dimension, const chunk_pos& cpos);
+void request_chunk(Session* session, const chunk_pos& cpos);
+} // namespace world::worldgen
diff --git a/src/game/shared/CMakeLists.txt b/src/game/shared/CMakeLists.txt
new file mode 100644
index 0000000..73da95f
--- /dev/null
+++ b/src/game/shared/CMakeLists.txt
@@ -0,0 +1,25 @@
+add_library(shared STATIC
+    "${CMAKE_CURRENT_LIST_DIR}/const.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/coord.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/game.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/game.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/game_items.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/game_items.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/game_voxels.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/game_voxels.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/globals.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/globals.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/pch.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/protocol.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/protocol.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/splash.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/splash.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/types.hh")
+target_compile_features(shared PUBLIC cxx_std_20)
+target_include_directories(shared PRIVATE "${PROJECT_SOURCE_DIR}/src")
+target_include_directories(shared PRIVATE "${PROJECT_SOURCE_DIR}/src/game")
+target_precompile_headers(shared PRIVATE "${CMAKE_CURRENT_LIST_DIR}/pch.hh")
+target_link_libraries(shared PUBLIC core enet entt FNL miniz parson)
+
+add_subdirectory(entity)
+add_subdirectory(world)
diff --git a/src/game/shared/const.hh b/src/game/shared/const.hh
new file mode 100644
index 0000000..187962a
--- /dev/null
+++ b/src/game/shared/const.hh
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "core/math/constexpr.hh"
+
+constexpr static unsigned int CHUNK_SIZE = 16;
+constexpr static unsigned int CHUNK_AREA = CHUNK_SIZE * CHUNK_SIZE;
+constexpr static unsigned int CHUNK_VOLUME = CHUNK_SIZE * CHUNK_SIZE * CHUNK_SIZE;
+constexpr static unsigned int CHUNK_BITSHIFT = math::log2(CHUNK_SIZE);
+
+template<typename T>
+constexpr static glm::vec<3, T> DIR_NORTH = glm::vec<3, T>(0, 0, +1);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_SOUTH = glm::vec<3, T>(0, 0, -1);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_EAST = glm::vec<3, T>(-1, 0, 0);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_WEST = glm::vec<3, T>(+1, 0, 0);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_DOWN = glm::vec<3, T>(0, -1, 0);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_UP = glm::vec<3, T>(0, +1, 0);
+
+template<typename T>
+constexpr static glm::vec<3, T> DIR_FORWARD = glm::vec<3, T>(0, 0, +1);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_BACK = glm::vec<3, T>(0, 0, -1);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_LEFT = glm::vec<3, T>(-1, 0, 0);
+template<typename T>
+constexpr static glm::vec<3, T> DIR_RIGHT = glm::vec<3, T>(+1, 0, 0);
+
+template<typename T>
+constexpr static glm::vec<3, T> UNIT_X = glm::vec<3, T>(1, 0, 0);
+template<typename T>
+constexpr static glm::vec<3, T> UNIT_Y = glm::vec<3, T>(0, 1, 0);
+template<typename T>
+constexpr static glm::vec<3, T> UNIT_Z = glm::vec<3, T>(0, 0, 1);
+
+template<typename T>
+constexpr static glm::vec<2, T> ZERO_VEC2 = glm::vec<2, T>(0, 0);
+
+template<typename T>
+constexpr static glm::vec<3, T> ZERO_VEC3 = glm::vec<3, T>(0, 0, 0);
diff --git a/src/game/shared/coord.hh b/src/game/shared/coord.hh
new file mode 100644
index 0000000..9d9be18
--- /dev/null
+++ b/src/game/shared/coord.hh
@@ -0,0 +1,145 @@
+#pragma once
+
+#include "shared/const.hh"
+#include "shared/types.hh"
+
+namespace coord
+{
+constexpr chunk_pos to_chunk(const voxel_pos& vpos);
+} // namespace coord
+
+namespace coord
+{
+constexpr local_pos to_local(const voxel_pos& vpos);
+constexpr local_pos to_local(const glm::fvec3& fvec);
+constexpr local_pos to_local(std::size_t index);
+} // namespace coord
+
+namespace coord
+{
+constexpr voxel_pos to_voxel(const chunk_pos& cpos, const local_pos& lpos);
+constexpr voxel_pos to_voxel(const chunk_pos& cpos, const glm::fvec3& fvec);
+} // namespace coord
+
+namespace coord
+{
+constexpr std::size_t to_index(const local_pos& lpos);
+} // namespace coord
+
+namespace coord
+{
+constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const chunk_pos& cpos, const glm::fvec3& fvec);
+constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos);
+constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos, const glm::fvec3& fvec);
+} // namespace coord
+
+namespace coord
+{
+constexpr glm::fvec3 to_fvec3(const chunk_pos& cpos);
+constexpr glm::fvec3 to_fvec3(const chunk_pos& cpos, const glm::fvec3& fpos);
+} // namespace coord
+
+inline constexpr chunk_pos coord::to_chunk(const voxel_pos& vpos)
+{
+    return chunk_pos {
+        static_cast<chunk_pos::value_type>(vpos.x >> CHUNK_BITSHIFT),
+        static_cast<chunk_pos::value_type>(vpos.y >> CHUNK_BITSHIFT),
+        static_cast<chunk_pos::value_type>(vpos.z >> CHUNK_BITSHIFT),
+    };
+}
+
+inline constexpr local_pos coord::to_local(const voxel_pos& vpos)
+{
+    return local_pos {
+        static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.x, CHUNK_SIZE)),
+        static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.y, CHUNK_SIZE)),
+        static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.z, CHUNK_SIZE)),
+    };
+}
+
+inline constexpr local_pos coord::to_local(const glm::fvec3& fvec)
+{
+    return local_pos {
+        static_cast<local_pos::value_type>(fvec.x),
+        static_cast<local_pos::value_type>(fvec.y),
+        static_cast<local_pos::value_type>(fvec.z),
+    };
+}
+
+inline constexpr local_pos coord::to_local(std::size_t index)
+{
+    return local_pos {
+        static_cast<local_pos::value_type>((index % CHUNK_SIZE)),
+        static_cast<local_pos::value_type>((index / CHUNK_SIZE) / CHUNK_SIZE),
+        static_cast<local_pos::value_type>((index / CHUNK_SIZE) % CHUNK_SIZE),
+    };
+}
+
+inline constexpr voxel_pos coord::to_voxel(const chunk_pos& cpos, const local_pos& lpos)
+{
+    return voxel_pos {
+        lpos.x + (static_cast<voxel_pos::value_type>(cpos.x) << CHUNK_BITSHIFT),
+        lpos.y + (static_cast<voxel_pos::value_type>(cpos.y) << CHUNK_BITSHIFT),
+        lpos.z + (static_cast<voxel_pos::value_type>(cpos.z) << CHUNK_BITSHIFT),
+    };
+}
+
+inline constexpr voxel_pos coord::to_voxel(const chunk_pos& cpos, const glm::fvec3& fvec)
+{
+    return voxel_pos {
+        static_cast<voxel_pos::value_type>(fvec.x) + (static_cast<voxel_pos::value_type>(cpos.x) << CHUNK_BITSHIFT),
+        static_cast<voxel_pos::value_type>(fvec.y) + (static_cast<voxel_pos::value_type>(cpos.y) << CHUNK_BITSHIFT),
+        static_cast<voxel_pos::value_type>(fvec.z) + (static_cast<voxel_pos::value_type>(cpos.z) << CHUNK_BITSHIFT),
+    };
+}
+
+inline constexpr std::size_t coord::to_index(const local_pos& lpos)
+{
+    return static_cast<std::size_t>((lpos.y * CHUNK_SIZE + lpos.z) * CHUNK_SIZE + lpos.x);
+}
+
+inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const chunk_pos& cpos, const glm::fvec3& fvec)
+{
+    return glm::fvec3 {
+        static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) + fvec.x,
+        static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) + fvec.y,
+        static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) + fvec.z,
+    };
+}
+
+inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos)
+{
+    return glm::fvec3 {
+        static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) - pivot_fvec.x,
+        static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) - pivot_fvec.y,
+        static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) - pivot_fvec.z,
+    };
+}
+
+inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos,
+    const glm::fvec3& fvec)
+{
+    return glm::fvec3 {
+        static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) + (fvec.x - pivot_fvec.x),
+        static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) + (fvec.y - pivot_fvec.y),
+        static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) + (fvec.z - pivot_fvec.z),
+    };
+}
+
+inline constexpr glm::fvec3 coord::to_fvec3(const chunk_pos& cpos)
+{
+    return glm::fvec3 {
+        static_cast<float>(cpos.x << CHUNK_BITSHIFT),
+        static_cast<float>(cpos.y << CHUNK_BITSHIFT),
+        static_cast<float>(cpos.z << CHUNK_BITSHIFT),
+    };
+}
+
+inline constexpr glm::fvec3 coord::to_fvec3(const chunk_pos& cpos, const glm::fvec3& fpos)
+{
+    return glm::fvec3 {
+        fpos.x + static_cast<float>(cpos.x << CHUNK_BITSHIFT),
+        fpos.y + static_cast<float>(cpos.y << CHUNK_BITSHIFT),
+        fpos.z + static_cast<float>(cpos.z << CHUNK_BITSHIFT),
+    };
+}
diff --git a/src/game/shared/entity/CMakeLists.txt b/src/game/shared/entity/CMakeLists.txt
new file mode 100644
index 0000000..36e45b6
--- /dev/null
+++ b/src/game/shared/entity/CMakeLists.txt
@@ -0,0 +1,16 @@
+target_sources(shared PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/collision.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/collision.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/factory.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/factory.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/gravity.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/gravity.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/grounded.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/head.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/player.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/stasis.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/stasis.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/transform.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/transform.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/velocity.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/velocity.hh")
diff --git a/src/game/shared/entity/collision.cc b/src/game/shared/entity/collision.cc
new file mode 100644
index 0000000..bc9209b
--- /dev/null
+++ b/src/game/shared/entity/collision.cc
@@ -0,0 +1,173 @@
+#include "shared/pch.hh"
+
+#include "shared/entity/collision.hh"
+
+#include "core/math/constexpr.hh"
+
+#include "shared/entity/gravity.hh"
+#include "shared/entity/grounded.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+#include "shared/globals.hh"
+
+static int vgrid_collide(const world::Dimension* dimension, int d, entity::Collision& collision, entity::Transform& transform,
+    entity::Velocity& velocity, world::VoxelMaterial& touch_surface)
+{
+    const auto move = globals::fixed_frametime * velocity.value[d];
+    const auto move_sign = math::sign<int>(move);
+
+    const auto& ref_aabb = collision.aabb;
+    const auto current_aabb = ref_aabb.push(transform.local);
+
+    auto next_aabb = math::AABBf(current_aabb);
+    next_aabb.min[d] += move;
+    next_aabb.max[d] += move;
+
+    local_pos lpos_min;
+    lpos_min.x = static_cast<local_pos::value_type>(glm::floor(next_aabb.min.x));
+    lpos_min.y = static_cast<local_pos::value_type>(glm::floor(next_aabb.min.y));
+    lpos_min.z = static_cast<local_pos::value_type>(glm::floor(next_aabb.min.z));
+
+    local_pos lpos_max;
+    lpos_max.x = static_cast<local_pos::value_type>(glm::ceil(next_aabb.max.x));
+    lpos_max.y = static_cast<local_pos::value_type>(glm::ceil(next_aabb.max.y));
+    lpos_max.z = static_cast<local_pos::value_type>(glm::ceil(next_aabb.max.z));
+
+    // Other axes
+    const int u = (d + 1) % 3;
+    const int v = (d + 2) % 3;
+
+    local_pos::value_type ddir;
+    local_pos::value_type dmin;
+    local_pos::value_type dmax;
+
+    if(move < 0.0f) {
+        ddir = local_pos::value_type(+1);
+        dmin = lpos_min[d];
+        dmax = lpos_max[d];
+    }
+    else {
+        ddir = local_pos::value_type(-1);
+        dmin = lpos_max[d];
+        dmax = lpos_min[d];
+    }
+
+    world::VoxelTouch latch_touch = world::VTOUCH_NONE;
+    glm::fvec3 latch_values = glm::fvec3(0.0f, 0.0f, 0.0f);
+    world::VoxelMaterial latch_surface = world::VMAT_UNKNOWN;
+    math::AABBf latch_vbox;
+
+    for(auto i = dmin; i != dmax; i += ddir) {
+        for(auto j = lpos_min[u]; j < lpos_max[u]; ++j)
+            for(auto k = lpos_min[v]; k < lpos_max[v]; ++k) {
+                local_pos lpos;
+                lpos[d] = i;
+                lpos[u] = j;
+                lpos[v] = k;
+
+                auto vpos = coord::to_voxel(transform.chunk, lpos);
+                auto voxel = dimension->get_voxel(vpos);
+
+                if(voxel == nullptr) {
+                    // Don't collide with something
+                    // that we assume to be nothing
+                    continue;
+                }
+
+                math::AABBf vbox(voxel->get_collision().push(lpos));
+
+                if(!next_aabb.intersect(vbox)) {
+                    // No intersection between the voxel
+                    // and the entity's collision hull
+                    continue;
+                }
+
+                if(voxel->is_touch_type<world::VTOUCH_SOLID>()) {
+                    // Solid touch type makes a collision
+                    // response whenever it is encountered
+                    velocity.value[d] = 0.0f;
+                    touch_surface = voxel->get_surface_material();
+                    return move_sign;
+                }
+
+                // In case of other touch types, they
+                // are latched and the last ever touch
+                // type is then responded to
+                if(voxel->get_touch_type() != world::VTOUCH_NONE) {
+                    latch_touch = voxel->get_touch_type();
+                    latch_values = voxel->get_touch_values();
+                    latch_surface = voxel->get_surface_material();
+                    latch_vbox = vbox;
+                    continue;
+                }
+            }
+    }
+
+    if(latch_touch != world::VTOUCH_NONE) {
+        if(latch_touch == world::VTOUCH_BOUNCE) {
+            const auto move_distance = glm::abs(current_aabb.min[d] - next_aabb.min[d]);
+            const auto threshold = 2.0f * globals::fixed_frametime;
+
+            if(move_distance > threshold) {
+                velocity.value[d] *= -latch_values[d];
+            }
+            else {
+                velocity.value[d] = 0.0f;
+            }
+
+            touch_surface = latch_surface;
+
+            return move_sign;
+        }
+
+        if(latch_touch == world::VTOUCH_SINK) {
+            velocity.value[d] *= latch_values[d];
+            touch_surface = latch_surface;
+            return move_sign;
+        }
+    }
+
+    return 0;
+}
+
+void entity::Collision::fixed_update(world::Dimension* dimension)
+{
+    // FIXME: this isn't particularly accurate considering
+    // some voxels might be passable and some other voxels
+    // might apply some slowing factor; what I might do in the
+    // future is to add a specific value to the voxel registry
+    // entries that would specify the amount of force we apply
+    // to prevent player movement inside a specific voxel, plus
+    // we shouldn't treat all voxels as full cubes if we want
+    // to support slabs, stairs and non-full liquid voxels in the future
+
+    auto group = dimension->entities.group<entity::Collision>(entt::get<entity::Transform, entity::Velocity>);
+
+    for(auto [entity, collision, transform, velocity] : group.each()) {
+        auto surface = world::VMAT_UNKNOWN;
+        auto vertical_move = vgrid_collide(dimension, 1, collision, transform, velocity, surface);
+
+        if(dimension->entities.any_of<entity::Gravity>(entity)) {
+            if(vertical_move == math::sign<int>(dimension->get_gravity())) {
+                dimension->entities.emplace_or_replace<entity::Grounded>(entity, entity::Grounded { surface });
+            }
+            else {
+                dimension->entities.remove<entity::Grounded>(entity);
+            }
+        }
+        else {
+            // The entity cannot be grounded because the component
+            // setup of said entity should not let it comprehend the
+            // concept of resting on the ground (it flies around)
+            dimension->entities.remove<entity::Grounded>(entity);
+        }
+
+        vgrid_collide(dimension, 0, collision, transform, velocity, surface);
+        vgrid_collide(dimension, 2, collision, transform, velocity, surface);
+    }
+}
diff --git a/src/game/shared/entity/collision.hh b/src/game/shared/entity/collision.hh
new file mode 100644
index 0000000..b37f409
--- /dev/null
+++ b/src/game/shared/entity/collision.hh
@@ -0,0 +1,21 @@
+#pragma once
+
+#include "core/math/aabb.hh"
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace entity
+{
+struct Collision final {
+    math::AABBf aabb;
+
+public:
+    // NOTE: entity::Collision::fixed_update must be called
+    // before entity::Transform::fixed_update and entity::Velocity::fixed_update
+    // because both transform and velocity may be updated internally
+    static void fixed_update(world::Dimension* dimension);
+};
+} // namespace entity
diff --git a/src/game/shared/entity/factory.cc b/src/game/shared/entity/factory.cc
new file mode 100644
index 0000000..619a418
--- /dev/null
+++ b/src/game/shared/entity/factory.cc
@@ -0,0 +1,37 @@
+#include "shared/pch.hh"
+
+#include "shared/entity/factory.hh"
+
+#include "shared/entity/collision.hh"
+#include "shared/entity/gravity.hh"
+#include "shared/entity/head.hh"
+#include "shared/entity/player.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/globals.hh"
+
+void entity::shared::create_player(world::Dimension* dimension, entt::entity entity)
+{
+    spdlog::debug("factory[{}]: assigning player components to {}", dimension->get_name(), static_cast<std::uint64_t>(entity));
+
+    auto& collision = dimension->entities.emplace_or_replace<entity::Collision>(entity);
+    collision.aabb.min = glm::fvec3(-0.4f, -1.6f, -0.4f);
+    collision.aabb.max = glm::fvec3(+0.4f, +0.2f, +0.4f);
+
+    auto& head = dimension->entities.emplace_or_replace<entity::Head>(entity);
+    head.angles = glm::fvec3(0.0f, 0.0f, 0.0f);
+    head.offset = glm::fvec3(0.0f, 0.0f, 0.0f);
+
+    dimension->entities.emplace_or_replace<entity::Player>(entity);
+
+    auto& transform = dimension->entities.emplace_or_replace<entity::Transform>(entity);
+    transform.chunk = chunk_pos(0, 2, 0);
+    transform.local = glm::fvec3(0.0f, 0.0f, 0.0f);
+    transform.angles = glm::fvec3(0.0f, 0.0f, 0.0f);
+
+    auto& velocity = dimension->entities.emplace_or_replace<entity::Velocity>(entity);
+    velocity.value = glm::fvec3(0.0f, 0.0f, 0.0f);
+}
diff --git a/src/game/shared/entity/factory.hh b/src/game/shared/entity/factory.hh
new file mode 100644
index 0000000..e709060
--- /dev/null
+++ b/src/game/shared/entity/factory.hh
@@ -0,0 +1,11 @@
+#pragma once
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace entity::shared
+{
+void create_player(world::Dimension* dimension, entt::entity entity);
+} // namespace entity::shared
diff --git a/src/game/shared/entity/gravity.cc b/src/game/shared/entity/gravity.cc
new file mode 100644
index 0000000..f1708aa
--- /dev/null
+++ b/src/game/shared/entity/gravity.cc
@@ -0,0 +1,20 @@
+#include "shared/pch.hh"
+
+#include "shared/entity/gravity.hh"
+
+#include "shared/entity/stasis.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/globals.hh"
+
+void entity::Gravity::fixed_update(world::Dimension* dimension)
+{
+    auto fixed_acceleration = globals::fixed_frametime * dimension->get_gravity();
+    auto group = dimension->entities.group<entity::Gravity>(entt::get<entity::Velocity>, entt::exclude<entity::Stasis>);
+
+    for(auto [entity, velocity] : group.each()) {
+        velocity.value.y += fixed_acceleration;
+    }
+}
diff --git a/src/game/shared/entity/gravity.hh b/src/game/shared/entity/gravity.hh
new file mode 100644
index 0000000..21f4582
--- /dev/null
+++ b/src/game/shared/entity/gravity.hh
@@ -0,0 +1,14 @@
+#pragma once
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace entity
+{
+struct Gravity final {
+public:
+    static void fixed_update(world::Dimension* dimension);
+};
+} // namespace entity
diff --git a/src/game/shared/entity/grounded.hh b/src/game/shared/entity/grounded.hh
new file mode 100644
index 0000000..6c33d1d
--- /dev/null
+++ b/src/game/shared/entity/grounded.hh
@@ -0,0 +1,12 @@
+#pragma once
+
+#include "shared/world/voxel.hh"
+
+namespace entity
+{
+// Assigned to entities which are grounded
+// according to the collision and gravity system
+struct Grounded final {
+    world::VoxelMaterial surface;
+};
+} // namespace entity
diff --git a/src/game/shared/entity/head.hh b/src/game/shared/entity/head.hh
new file mode 100644
index 0000000..3f5d6d1
--- /dev/null
+++ b/src/game/shared/entity/head.hh
@@ -0,0 +1,16 @@
+#pragma once
+
+namespace entity
+{
+struct Head {
+    glm::fvec3 angles;
+    glm::fvec3 offset;
+};
+} // namespace entity
+
+namespace entity::client
+{
+// Client-side only - interpolated and previous head
+struct HeadIntr final : public Head {};
+struct HeadPrev final : public Head {};
+} // namespace entity::client
diff --git a/src/game/shared/entity/player.hh b/src/game/shared/entity/player.hh
new file mode 100644
index 0000000..4bd0217
--- /dev/null
+++ b/src/game/shared/entity/player.hh
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace entity
+{
+struct Player final {};
+} // namespace entity
diff --git a/src/game/shared/entity/stasis.cc b/src/game/shared/entity/stasis.cc
new file mode 100644
index 0000000..3b86294
--- /dev/null
+++ b/src/game/shared/entity/stasis.cc
@@ -0,0 +1,21 @@
+#include "shared/pch.hh"
+
+#include "shared/entity/stasis.hh"
+
+#include "shared/entity/transform.hh"
+
+#include "shared/world/dimension.hh"
+
+void entity::Stasis::fixed_update(world::Dimension* dimension)
+{
+    auto view = dimension->entities.view<entity::Transform>();
+
+    for(auto [entity, transform] : view.each()) {
+        if(dimension->find_chunk(transform.chunk)) {
+            dimension->entities.remove<entity::Stasis>(entity);
+        }
+        else {
+            dimension->entities.emplace_or_replace<entity::Stasis>(entity);
+        }
+    }
+}
diff --git a/src/game/shared/entity/stasis.hh b/src/game/shared/entity/stasis.hh
new file mode 100644
index 0000000..e6cb9e4
--- /dev/null
+++ b/src/game/shared/entity/stasis.hh
@@ -0,0 +1,16 @@
+#pragma once
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace entity
+{
+// Attached to entities with transform values
+// out of bounds in a specific dimension
+struct Stasis final {
+public:
+    static void fixed_update(world::Dimension* dimension);
+};
+} // namespace entity
diff --git a/src/game/shared/entity/transform.cc b/src/game/shared/entity/transform.cc
new file mode 100644
index 0000000..379ddd5
--- /dev/null
+++ b/src/game/shared/entity/transform.cc
@@ -0,0 +1,33 @@
+#include "shared/pch.hh"
+
+#include "shared/entity/transform.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/const.hh"
+
+constexpr inline static void update_component(unsigned int dim, entity::Transform& component)
+{
+    if(component.local[dim] >= CHUNK_SIZE) {
+        component.local[dim] -= CHUNK_SIZE;
+        component.chunk[dim] += 1;
+        return;
+    }
+
+    if(component.local[dim] < 0.0f) {
+        component.local[dim] += CHUNK_SIZE;
+        component.chunk[dim] -= 1;
+        return;
+    }
+}
+
+void entity::Transform::fixed_update(world::Dimension* dimension)
+{
+    auto view = dimension->entities.view<entity::Transform>();
+
+    for(auto [entity, transform] : view.each()) {
+        update_component(0U, transform);
+        update_component(1U, transform);
+        update_component(2U, transform);
+    }
+}
diff --git a/src/game/shared/entity/transform.hh b/src/game/shared/entity/transform.hh
new file mode 100644
index 0000000..2b357f8
--- /dev/null
+++ b/src/game/shared/entity/transform.hh
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace entity
+{
+struct Transform {
+    chunk_pos chunk;
+    glm::fvec3 local;
+    glm::fvec3 angles;
+
+public:
+    // Updates entity::Transform values so that
+    // the local translation field is always within
+    // local coodrinates; [floating-point precision]
+    static void fixed_update(world::Dimension* dimension);
+};
+} // namespace entity
+
+namespace entity::client
+{
+// Client-side only - interpolated and previous transform
+struct TransformIntr final : public Transform {};
+struct TransformPrev final : public Transform {};
+} // namespace entity::client
diff --git a/src/game/shared/entity/velocity.cc b/src/game/shared/entity/velocity.cc
new file mode 100644
index 0000000..86df445
--- /dev/null
+++ b/src/game/shared/entity/velocity.cc
@@ -0,0 +1,19 @@
+#include "shared/pch.hh"
+
+#include "shared/entity/velocity.hh"
+
+#include "shared/entity/stasis.hh"
+#include "shared/entity/transform.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/globals.hh"
+
+void entity::Velocity::fixed_update(world::Dimension* dimension)
+{
+    auto group = dimension->entities.group<entity::Velocity>(entt::get<entity::Transform>, entt::exclude<entity::Stasis>);
+
+    for(auto [entity, velocity, transform] : group.each()) {
+        transform.local += velocity.value * globals::fixed_frametime;
+    }
+}
diff --git a/src/game/shared/entity/velocity.hh b/src/game/shared/entity/velocity.hh
new file mode 100644
index 0000000..c8a1c91
--- /dev/null
+++ b/src/game/shared/entity/velocity.hh
@@ -0,0 +1,19 @@
+#pragma once
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace entity
+{
+struct Velocity final {
+    glm::fvec3 value;
+
+public:
+    // Updates entities entity::Transform values
+    // according to velocities multiplied by fixed_frametime.
+    // NOTE: This system was previously called inertial
+    static void fixed_update(world::Dimension* dimension);
+};
+} // namespace entity
diff --git a/src/game/shared/game.cc b/src/game/shared/game.cc
new file mode 100644
index 0000000..a3a724d
--- /dev/null
+++ b/src/game/shared/game.cc
@@ -0,0 +1,127 @@
+#include "shared/pch.hh"
+
+#include "shared/game.hh"
+
+#include "core/io/cmdline.hh"
+#include "core/io/physfs.hh"
+
+static std::filesystem::path get_gamepath(void)
+{
+    if(auto gamepath = io::cmdline::get_cstr("gamepath")) {
+        // Allow users and third-party launchers to override
+        // content location. Perhaps this would work to allow
+        // for a Minecraft-like versioning approach?
+        return std::filesystem::path(gamepath);
+    }
+
+    return std::filesystem::current_path() / "assets";
+}
+
+static std::filesystem::path get_userpath(void)
+{
+    if(auto userpath = io::cmdline::get_cstr("userpath")) {
+        // Allow users and third-party launchers to override
+        // user data location. Perhaps this would work to allow
+        // for a Minecraft-like versioning approach?
+        return std::filesystem::path(userpath);
+    }
+
+    if(auto win_appdata = std::getenv("APPDATA")) {
+        // On pre-seven Windows systems it's just AppData
+        // On post-seven Windows systems it's AppData/Roaming
+        return std::filesystem::path(win_appdata) / "voxelius";
+    }
+
+    if(auto xdg_home = std::getenv("XDG_DATA_HOME")) {
+        // Systems with an active X11/Wayland session
+        // theoretically should have this defined, and
+        // it can be different from ${HOME} (I think).
+        return std::filesystem::path(xdg_home) / ".voxelius";
+    }
+
+    if(auto unix_home = std::getenv("HOME")) {
+        // Any spherical UNIX/UNIX-like system in vacuum
+        // has this defined for every single user process.
+        return std::filesystem::path(unix_home) / ".voxelius";
+    }
+
+    // Give up and save stuff into CWD
+    return std::filesystem::current_path();
+}
+
+void shared_game::init(int argc, char** argv, std::string_view logfile)
+{
+    auto logger = spdlog::default_logger();
+    auto& logger_sinks = logger->sinks();
+
+    logger_sinks.clear();
+    logger_sinks.push_back(std::make_shared<spdlog::sinks::stderr_color_sink_mt>());
+
+    if(logfile.size()) {
+        logger_sinks.push_back(std::make_shared<spdlog::sinks::basic_file_sink_mt>(std::string(logfile), false));
+    }
+
+#if defined(NDEBUG)
+    constexpr auto default_loglevel = spdlog::level::info;
+#else
+    constexpr auto default_loglevel = spdlog::level::trace;
+#endif
+
+    if(io::cmdline::contains("quiet")) {
+        logger->set_level(spdlog::level::warn);
+    }
+    else if(io::cmdline::contains("verbose")) {
+        logger->set_level(spdlog::level::trace);
+    }
+    else {
+        logger->set_level(default_loglevel);
+    }
+
+    logger->set_pattern("%H:%M:%S.%e %^[%L]%$ %v");
+    logger->flush();
+
+    if(!PHYSFS_init(argv[0])) {
+        spdlog::critical("physfs: init failed: {}", io::physfs_error());
+        std::terminate();
+    }
+
+    auto gamepath = get_gamepath();
+    auto userpath = get_userpath();
+
+    spdlog::info("shared_game: set gamepath to {}", gamepath.string());
+    spdlog::info("shared_game: set userpath to {}", userpath.string());
+
+    std::error_code ignore_error = {};
+    std::filesystem::create_directories(gamepath, ignore_error);
+    std::filesystem::create_directories(userpath, ignore_error);
+
+    if(!PHYSFS_mount(gamepath.string().c_str(), nullptr, false)) {
+        spdlog::critical("physfs: mount {} failed: {}", gamepath.string(), io::physfs_error());
+        std::terminate();
+    }
+
+    if(!PHYSFS_mount(userpath.string().c_str(), nullptr, false)) {
+        spdlog::critical("physfs: mount {} failed: {}", userpath.string(), io::physfs_error());
+        std::terminate();
+    }
+
+    if(!PHYSFS_setWriteDir(userpath.string().c_str())) {
+        spdlog::critical("physfs: setwritedir {} failed: {}", userpath.string(), io::physfs_error());
+        std::terminate();
+    }
+
+    if(enet_initialize()) {
+        spdlog::critical("enet: init failed");
+        std::terminate();
+    }
+}
+
+void shared_game::shutdown(void)
+{
+    enet_deinitialize();
+
+    if(!PHYSFS_deinit()) {
+        spdlog::critical("physfs: deinit failed: {}", io::physfs_error());
+        std::terminate();
+    }
+}
diff --git a/src/game/shared/game.hh b/src/game/shared/game.hh
new file mode 100644
index 0000000..6e89a3c
--- /dev/null
+++ b/src/game/shared/game.hh
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace shared_game
+{
+void init(int argc, char** argv, std::string_view logfile = {});
+void shutdown(void);
+} // namespace shared_game
diff --git a/src/game/shared/game_items.cc b/src/game/shared/game_items.cc
new file mode 100644
index 0000000..e239063
--- /dev/null
+++ b/src/game/shared/game_items.cc
@@ -0,0 +1,65 @@
+#include "shared/pch.hh"
+
+#include "shared/game_items.hh"
+
+#include "shared/world/item_registry.hh"
+
+#include "shared/game_voxels.hh"
+
+const world::Item* game_items::stone = nullptr;
+const world::Item* game_items::cobblestone = nullptr;
+const world::Item* game_items::dirt = nullptr;
+const world::Item* game_items::grass = nullptr;
+const world::Item* game_items::oak_leaves = nullptr;
+const world::Item* game_items::oak_planks = nullptr;
+const world::Item* game_items::oak_log = nullptr;
+const world::Item* game_items::glass = nullptr;
+const world::Item* game_items::slime = nullptr;
+
+void game_items::populate(void)
+{
+    auto stone_builder = world::ItemBuilder("stone");
+    stone_builder.set_texture("textures/item/stone.png");
+    stone_builder.set_place_voxel(game_voxels::stone);
+    stone = world::item_registry::register_item(stone_builder);
+
+    auto cobblestone_builder = world::ItemBuilder("cobblestone");
+    cobblestone_builder.set_texture("textures/item/cobblestone.png");
+    cobblestone_builder.set_place_voxel(game_voxels::cobblestone);
+    cobblestone = world::item_registry::register_item(cobblestone_builder);
+
+    auto dirt_builder = world::ItemBuilder("dirt");
+    dirt_builder.set_texture("textures/item/dirt.png");
+    dirt_builder.set_place_voxel(game_voxels::dirt);
+    dirt = world::item_registry::register_item(dirt_builder);
+
+    auto grass_builder = world::ItemBuilder("grass");
+    grass_builder.set_texture("textures/item/grass.png");
+    grass_builder.set_place_voxel(game_voxels::grass);
+    grass = world::item_registry::register_item(grass_builder);
+
+    auto oak_leaves_builder = world::ItemBuilder("oak_leaves");
+    oak_leaves_builder.set_texture("textures/item/oak_leaves.png");
+    oak_leaves_builder.set_place_voxel(game_voxels::oak_leaves);
+    oak_leaves = world::item_registry::register_item(oak_leaves_builder);
+
+    auto oak_planks_builder = world::ItemBuilder("oak_planks");
+    oak_planks_builder.set_texture("textures/item/oak_planks.png");
+    oak_planks_builder.set_place_voxel(game_voxels::oak_planks);
+    oak_planks = world::item_registry::register_item(oak_planks_builder);
+
+    auto oak_log_builder = world::ItemBuilder("oak_log");
+    oak_log_builder.set_texture("textures/item/oak_log.png");
+    oak_log_builder.set_place_voxel(game_voxels::oak_log);
+    oak_log = world::item_registry::register_item(oak_log_builder);
+
+    auto glass_builder = world::ItemBuilder("glass");
+    glass_builder.set_texture("textures/item/glass.png");
+    glass_builder.set_place_voxel(game_voxels::glass);
+    glass = world::item_registry::register_item(glass_builder);
+
+    auto slime_builder = world::ItemBuilder("slime");
+    slime_builder.set_texture("textures/item/slime.png");
+    slime_builder.set_place_voxel(game_voxels::slime);
+    slime = world::item_registry::register_item(slime_builder);
+}
diff --git a/src/game/shared/game_items.hh b/src/game/shared/game_items.hh
new file mode 100644
index 0000000..c9b3638
--- /dev/null
+++ b/src/game/shared/game_items.hh
@@ -0,0 +1,24 @@
+#pragma once
+
+namespace world
+{
+class Item;
+} // namespace world
+
+namespace game_items
+{
+extern const world::Item* stone;
+extern const world::Item* cobblestone;
+extern const world::Item* dirt;
+extern const world::Item* grass;
+extern const world::Item* oak_leaves;
+extern const world::Item* oak_planks;
+extern const world::Item* oak_log;
+extern const world::Item* glass;
+extern const world::Item* slime;
+} // namespace game_items
+
+namespace game_items
+{
+void populate(void);
+} // namespace game_items
diff --git a/src/game/shared/game_voxels.cc b/src/game/shared/game_voxels.cc
new file mode 100644
index 0000000..c4c4ec3
--- /dev/null
+++ b/src/game/shared/game_voxels.cc
@@ -0,0 +1,152 @@
+#include "shared/pch.hh"
+
+#include "shared/game_voxels.hh"
+
+#include "shared/world/dimension.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/const.hh"
+
+const world::Voxel* game_voxels::cobblestone = nullptr;
+const world::Voxel* game_voxels::dirt = nullptr;
+const world::Voxel* game_voxels::grass = nullptr;
+const world::Voxel* game_voxels::stone = nullptr;
+const world::Voxel* game_voxels::vtest = nullptr;
+const world::Voxel* game_voxels::vtest_ck = nullptr;
+const world::Voxel* game_voxels::oak_leaves = nullptr;
+const world::Voxel* game_voxels::oak_planks = nullptr;
+const world::Voxel* game_voxels::oak_log = nullptr;
+const world::Voxel* game_voxels::glass = nullptr;
+const world::Voxel* game_voxels::slime = nullptr;
+
+static void dirt_tick(world::Dimension* dimension, const voxel_pos& vpos)
+{
+    auto grass_found = false;
+    auto air_above = false;
+
+    for(voxel_pos::value_type dx = -1; dx <= 1 && !grass_found; ++dx) {
+        for(voxel_pos::value_type dy = -1; dy <= 1 && !grass_found; ++dy) {
+            for(voxel_pos::value_type dz = -1; dz <= 1 && !grass_found; ++dz) {
+                if(dx == 0 && dy == 0 && dz == 0) {
+                    // Skip self
+                    continue;
+                }
+
+                auto neighbour_vpos = vpos + voxel_pos(dx, dy, dz);
+                auto neighbour_voxel = dimension->get_voxel(neighbour_vpos);
+
+                // Voxel pointers returned by get_voxel() are the exact same
+                // returned by the voxel registry, so we can compare pointers directly
+                // and not bother with voxel_id property comparisons
+                if(neighbour_voxel == game_voxels::grass) {
+                    grass_found = true;
+                    break;
+                }
+            }
+        }
+    }
+
+    auto above_vpos = vpos + voxel_pos(0, 1, 0);
+    auto above_voxel = dimension->get_voxel(above_vpos);
+
+    if(above_voxel == nullptr || above_voxel->is_surface_material<world::VMAT_GLASS>()) {
+        air_above = true;
+    }
+
+    if(grass_found && air_above) {
+        dimension->set_voxel(game_voxels::grass, vpos);
+    }
+}
+
+static void grass_tick(world::Dimension* dimension, const voxel_pos& vpos)
+{
+    auto above_vpos = vpos + voxel_pos(0, 1, 0);
+    auto above_voxel = dimension->get_voxel(above_vpos);
+
+    if(above_voxel && !above_voxel->is_surface_material<world::VMAT_GLASS>()) {
+        // Decay into dirt if something is blocking airflow
+        dimension->set_voxel(game_voxels::dirt, vpos);
+    }
+}
+
+void game_voxels::populate(void)
+{
+    auto stone_builder = world::VoxelBuilder("stone");
+    stone_builder.add_default_texture("textures/voxel/stone_01.png");
+    stone_builder.add_default_texture("textures/voxel/stone_02.png");
+    stone_builder.add_default_texture("textures/voxel/stone_03.png");
+    stone_builder.add_default_texture("textures/voxel/stone_04.png");
+    stone = world::voxel_registry::register_voxel(stone_builder);
+
+    auto cobblestone_builder = world::VoxelBuilder("cobblestone");
+    cobblestone_builder.add_default_texture("textures/voxel/cobblestone_01.png");
+    cobblestone_builder.add_default_texture("textures/voxel/cobblestone_02.png");
+    cobblestone = world::voxel_registry::register_voxel(cobblestone_builder);
+
+    auto dirt_builder = world::VoxelBuilder("dirt");
+    dirt_builder.add_default_texture("textures/voxel/dirt_01.png");
+    dirt_builder.add_default_texture("textures/voxel/dirt_02.png");
+    dirt_builder.add_default_texture("textures/voxel/dirt_03.png");
+    dirt_builder.add_default_texture("textures/voxel/dirt_04.png");
+    dirt_builder.set_surface_material(world::VMAT_DIRT);
+    dirt_builder.set_on_tick(&dirt_tick);
+    dirt = world::voxel_registry::register_voxel(dirt_builder);
+
+    auto grass_builder = world::VoxelBuilder("grass");
+    grass_builder.add_default_texture("textures/voxel/grass_side_01.png");
+    grass_builder.add_default_texture("textures/voxel/grass_side_02.png");
+    grass_builder.add_face_texture(world::VFACE_BOTTOM, "textures/voxel/dirt_01.png");
+    grass_builder.add_face_texture(world::VFACE_BOTTOM, "textures/voxel/dirt_02.png");
+    grass_builder.add_face_texture(world::VFACE_BOTTOM, "textures/voxel/dirt_03.png");
+    grass_builder.add_face_texture(world::VFACE_BOTTOM, "textures/voxel/dirt_04.png");
+    grass_builder.add_face_texture(world::VFACE_TOP, "textures/voxel/grass_01.png");
+    grass_builder.add_face_texture(world::VFACE_TOP, "textures/voxel/grass_02.png");
+    grass_builder.set_surface_material(world::VMAT_GRASS);
+    grass_builder.set_on_tick(&grass_tick);
+    grass = world::voxel_registry::register_voxel(grass_builder);
+
+    auto vtest_builder = world::VoxelBuilder("vtest");
+    vtest_builder.add_default_texture("textures/voxel/vtest_F1.png");
+    vtest_builder.add_default_texture("textures/voxel/vtest_F2.png");
+    vtest_builder.add_default_texture("textures/voxel/vtest_F3.png");
+    vtest_builder.add_default_texture("textures/voxel/vtest_F4.png");
+    vtest_builder.set_animated(true);
+    vtest = world::voxel_registry::register_voxel(vtest_builder);
+
+    auto vtest_ck_builder = world::VoxelBuilder("vtest_ck");
+    vtest_ck_builder.add_default_texture("textures/voxel/chromakey.png");
+    vtest_ck = world::voxel_registry::register_voxel(vtest_ck_builder);
+
+    auto oak_leaves_builder = world::VoxelBuilder("oak_leaves");
+    oak_leaves_builder.add_default_texture("textures/voxel/oak_leaves.png");
+    oak_leaves_builder.set_surface_material(world::VMAT_GRASS);
+    oak_leaves = world::voxel_registry::register_voxel(oak_leaves_builder);
+
+    auto oak_planks_builder = world::VoxelBuilder("oak_planks");
+    oak_planks_builder.add_default_texture("textures/voxel/oak_planks_01.png");
+    oak_planks_builder.add_default_texture("textures/voxel/oak_planks_02.png");
+    oak_planks_builder.set_surface_material(world::VMAT_WOOD);
+    oak_planks = world::voxel_registry::register_voxel(oak_planks_builder);
+
+    auto oak_log_builder = world::VoxelBuilder("oak_log");
+    oak_log_builder.add_default_texture("textures/voxel/oak_wood_01.png");
+    oak_log_builder.add_default_texture("textures/voxel/oak_wood_02.png");
+    oak_log_builder.add_face_texture(world::VFACE_BOTTOM, "textures/voxel/oak_wood_top.png");
+    oak_log_builder.add_face_texture(world::VFACE_TOP, "textures/voxel/oak_wood_top.png");
+    oak_log_builder.set_surface_material(world::VMAT_WOOD);
+    oak_log = world::voxel_registry::register_voxel(oak_log_builder);
+
+    auto glass_builder = world::VoxelBuilder("glass");
+    glass_builder.add_default_texture("textures/voxel/glass_01.png");
+    glass_builder.set_render_mode(world::VRENDER_BLEND);
+    glass_builder.set_surface_material(world::VMAT_GLASS);
+    glass = world::voxel_registry::register_voxel(glass_builder);
+
+    auto slime_builder = world::VoxelBuilder("slime");
+    slime_builder.add_default_texture("textures/voxel/slime_01.png");
+    slime_builder.set_render_mode(world::VRENDER_BLEND);
+    slime_builder.set_surface_material(world::VMAT_SLOSH);
+    slime_builder.set_touch_type(world::VTOUCH_BOUNCE);
+    slime_builder.set_touch_values({ 0.00f, 0.60f, 0.00f });
+    slime = world::voxel_registry::register_voxel(slime_builder);
+}
diff --git a/src/game/shared/game_voxels.hh b/src/game/shared/game_voxels.hh
new file mode 100644
index 0000000..a8d155f
--- /dev/null
+++ b/src/game/shared/game_voxels.hh
@@ -0,0 +1,26 @@
+#pragma once
+
+namespace world
+{
+class Voxel;
+} // namespace world
+
+namespace game_voxels
+{
+extern const world::Voxel* cobblestone;
+extern const world::Voxel* dirt;
+extern const world::Voxel* grass;
+extern const world::Voxel* stone;
+extern const world::Voxel* vtest;
+extern const world::Voxel* vtest_ck;
+extern const world::Voxel* oak_leaves;
+extern const world::Voxel* oak_planks;
+extern const world::Voxel* oak_log;
+extern const world::Voxel* glass;
+extern const world::Voxel* slime;
+} // namespace game_voxels
+
+namespace game_voxels
+{
+void populate(void);
+} // namespace game_voxels
diff --git a/src/game/shared/globals.cc b/src/game/shared/globals.cc
new file mode 100644
index 0000000..8552214
--- /dev/null
+++ b/src/game/shared/globals.cc
@@ -0,0 +1,12 @@
+#include "shared/pch.hh"
+
+#include "shared/globals.hh"
+
+entt::dispatcher globals::dispatcher;
+
+float globals::fixed_frametime;
+float globals::fixed_frametime_avg;
+std::uint64_t globals::fixed_frametime_us;
+std::size_t globals::fixed_framecount;
+
+std::uint64_t globals::curtime;
diff --git a/src/game/shared/globals.hh b/src/game/shared/globals.hh
new file mode 100644
index 0000000..39a12a7
--- /dev/null
+++ b/src/game/shared/globals.hh
@@ -0,0 +1,19 @@
+#pragma once
+
+namespace globals
+{
+extern entt::dispatcher dispatcher;
+} // namespace globals
+
+namespace globals
+{
+extern float fixed_frametime;
+extern float fixed_frametime_avg;
+extern std::uint64_t fixed_frametime_us;
+extern std::size_t fixed_framecount;
+} // namespace globals
+
+namespace globals
+{
+extern std::uint64_t curtime;
+} // namespace globals
diff --git a/src/game/shared/pch.hh b/src/game/shared/pch.hh
new file mode 100644
index 0000000..e978e0f
--- /dev/null
+++ b/src/game/shared/pch.hh
@@ -0,0 +1,19 @@
+#pragma once
+
+#include <core/pch.hh> // inherit dependent includes from core.lib
+
+#include <csignal>
+
+#include <enet/enet.h>
+
+#include <entt/entity/registry.hpp>
+#include <entt/signal/dispatcher.hpp>
+
+#include <fastnoiselite.h>
+
+#include <miniz.h>
+
+#include <parson.h>
+
+#include <spdlog/sinks/basic_file_sink.h>
+#include <spdlog/sinks/stdout_color_sinks.h>
diff --git a/src/game/shared/protocol.cc b/src/game/shared/protocol.cc
new file mode 100644
index 0000000..4c0c894
--- /dev/null
+++ b/src/game/shared/protocol.cc
@@ -0,0 +1,518 @@
+#include "shared/pch.hh"
+
+#include "shared/protocol.hh"
+
+#include "core/io/buffer.hh"
+
+#include "shared/entity/head.hh"
+#include "shared/entity/player.hh"
+#include "shared/entity/transform.hh"
+#include "shared/entity/velocity.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+
+#include "shared/globals.hh"
+
+static io::ReadBuffer read_buffer;
+static io::WriteBuffer write_buffer;
+
+ENetPacket* protocol::encode(const protocol::StatusRequest& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::StatusRequest::ID);
+    write_buffer.write<std::uint32_t>(packet.game_version_major);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::StatusResponse& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::StatusResponse::ID);
+    write_buffer.write<std::uint32_t>(packet.game_version_major);
+    write_buffer.write<std::uint16_t>(packet.max_players);
+    write_buffer.write<std::uint16_t>(packet.num_players);
+    write_buffer.write<std::string_view>(packet.motd);
+    write_buffer.write<std::uint32_t>(packet.game_version_minor);
+    write_buffer.write<std::uint32_t>(packet.game_version_patch);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::LoginRequest& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::LoginRequest::ID);
+    write_buffer.write<std::uint32_t>(packet.game_version_major);
+    write_buffer.write<std::uint64_t>(packet.voxel_registry_checksum);
+    write_buffer.write<std::uint64_t>(packet.item_registry_checksum);
+    write_buffer.write<std::uint64_t>(packet.password_hash);
+    write_buffer.write<std::string_view>(packet.username.substr(0, protocol::MAX_USERNAME));
+    write_buffer.write<std::uint32_t>(packet.game_version_minor);
+    write_buffer.write<std::uint32_t>(packet.game_version_patch);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::LoginResponse& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::LoginResponse::ID);
+    write_buffer.write<std::uint16_t>(packet.client_index);
+    write_buffer.write<std::uint64_t>(packet.client_identity);
+    write_buffer.write<std::uint16_t>(packet.server_tickrate);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::Disconnect& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::Disconnect::ID);
+    write_buffer.write<std::string_view>(packet.reason);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::ChunkVoxels& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::ChunkVoxels::ID);
+    write_buffer.write<std::int32_t>(packet.chunk.x);
+    write_buffer.write<std::int32_t>(packet.chunk.y);
+    write_buffer.write<std::int32_t>(packet.chunk.z);
+    packet.voxels.serialize(write_buffer);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::EntityTransform& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::EntityTransform::ID);
+    write_buffer.write<std::uint64_t>(static_cast<std::uint64_t>(packet.entity));
+    write_buffer.write<std::int32_t>(packet.chunk.x);
+    write_buffer.write<std::int32_t>(packet.chunk.y);
+    write_buffer.write<std::int32_t>(packet.chunk.z);
+    write_buffer.write<float>(packet.local.x);
+    write_buffer.write<float>(packet.local.y);
+    write_buffer.write<float>(packet.local.z);
+    write_buffer.write<float>(packet.angles.x);
+    write_buffer.write<float>(packet.angles.y);
+    write_buffer.write<float>(packet.angles.z);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::EntityHead& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::EntityHead::ID);
+    write_buffer.write<std::uint64_t>(static_cast<std::uint64_t>(packet.entity));
+    write_buffer.write<float>(packet.angles.x);
+    write_buffer.write<float>(packet.angles.y);
+    write_buffer.write<float>(packet.angles.z);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::EntityVelocity& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::EntityVelocity::ID);
+    write_buffer.write<std::uint64_t>(static_cast<std::uint64_t>(packet.entity));
+    write_buffer.write<float>(packet.value.x);
+    write_buffer.write<float>(packet.value.y);
+    write_buffer.write<float>(packet.value.z);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::SpawnPlayer& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::SpawnPlayer::ID);
+    write_buffer.write<std::uint64_t>(static_cast<std::uint64_t>(packet.entity));
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::ChatMessage& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::ChatMessage::ID);
+    write_buffer.write<std::uint16_t>(packet.type);
+    write_buffer.write<std::string_view>(packet.sender.substr(0, protocol::MAX_USERNAME));
+    write_buffer.write<std::string_view>(packet.message.substr(0, protocol::MAX_CHAT));
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::SetVoxel& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::SetVoxel::ID);
+    write_buffer.write<std::int64_t>(packet.vpos.x);
+    write_buffer.write<std::int64_t>(packet.vpos.y);
+    write_buffer.write<std::int64_t>(packet.vpos.z);
+    write_buffer.write<std::uint16_t>(packet.voxel);
+    write_buffer.write<std::uint16_t>(packet.flags);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::RemoveEntity& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::RemoveEntity::ID);
+    write_buffer.write<std::uint64_t>(static_cast<std::uint64_t>(packet.entity));
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::EntityPlayer& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::EntityPlayer::ID);
+    write_buffer.write<std::uint64_t>(static_cast<std::uint64_t>(packet.entity));
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::ScoreboardUpdate& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::ScoreboardUpdate::ID);
+    write_buffer.write<std::uint16_t>(static_cast<std::uint16_t>(packet.names.size()));
+    for(const std::string& username : packet.names)
+        write_buffer.write<std::string_view>(username.substr(0, protocol::MAX_USERNAME));
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::RequestChunk& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::RequestChunk::ID);
+    write_buffer.write<std::int32_t>(packet.cpos.x);
+    write_buffer.write<std::int32_t>(packet.cpos.y);
+    write_buffer.write<std::int32_t>(packet.cpos.z);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::GenericSound& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::GenericSound::ID);
+    write_buffer.write<std::string_view>(packet.sound.substr(0, protocol::MAX_SOUNDNAME));
+    write_buffer.write<std::uint8_t>(packet.looping);
+    write_buffer.write<float>(packet.pitch);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::EntitySound& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::EntitySound::ID);
+    write_buffer.write<std::uint64_t>(static_cast<std::uint64_t>(packet.entity));
+    write_buffer.write<std::string_view>(packet.sound.substr(0, protocol::MAX_SOUNDNAME));
+    write_buffer.write<std::uint8_t>(packet.looping);
+    write_buffer.write<float>(packet.pitch);
+    return write_buffer.to_packet(flags);
+}
+
+ENetPacket* protocol::encode(const protocol::DimensionInfo& packet, enet_uint32 flags)
+{
+    write_buffer.reset();
+    write_buffer.write<std::uint16_t>(protocol::DimensionInfo::ID);
+    write_buffer.write<std::string_view>(packet.name);
+    write_buffer.write<float>(packet.gravity);
+    return write_buffer.to_packet(flags);
+}
+
+void protocol::broadcast(ENetHost* host, ENetPacket* packet)
+{
+    if(packet) {
+        enet_host_broadcast(host, protocol::CHANNEL, packet);
+    }
+}
+
+void protocol::broadcast(ENetHost* host, ENetPacket* packet, ENetPeer* except)
+{
+    if(packet) {
+        for(unsigned int i = 0U; i < host->peerCount; ++i) {
+            if(host->peers[i].state == ENET_PEER_STATE_CONNECTED) {
+                if(&host->peers[i] != except) {
+                    enet_peer_send(&host->peers[i], protocol::CHANNEL, packet);
+                }
+            }
+        }
+    }
+}
+
+void protocol::send(ENetPeer* peer, ENetPacket* packet)
+{
+    if(packet) {
+        enet_peer_send(peer, protocol::CHANNEL, packet);
+    }
+}
+
+void protocol::decode(entt::dispatcher& dispatcher, const ENetPacket* packet, ENetPeer* peer)
+{
+    read_buffer.reset(packet);
+
+    protocol::StatusRequest status_request;
+    protocol::StatusResponse status_response;
+    protocol::LoginRequest login_request;
+    protocol::LoginResponse login_response;
+    protocol::Disconnect disconnect;
+    protocol::ChunkVoxels chunk_voxels;
+    protocol::EntityTransform entity_transform;
+    protocol::EntityHead entity_head;
+    protocol::EntityVelocity entity_velocity;
+    protocol::SpawnPlayer spawn_player;
+    protocol::ChatMessage chat_message;
+    protocol::SetVoxel set_voxel;
+    protocol::RemoveEntity remove_entity;
+    protocol::EntityPlayer entity_player;
+    protocol::ScoreboardUpdate scoreboard_update;
+    protocol::RequestChunk request_chunk;
+    protocol::GenericSound generic_sound;
+    protocol::EntitySound entity_sound;
+    protocol::DimensionInfo dimension_info;
+
+    auto id = read_buffer.read<std::uint16_t>();
+
+    switch(id) {
+        case protocol::StatusRequest::ID:
+            status_request.peer = peer;
+            status_request.game_version_major = read_buffer.read<std::uint32_t>();
+            dispatcher.trigger(status_request);
+            break;
+
+        case protocol::StatusResponse::ID:
+            status_response.peer = peer;
+            status_response.game_version_major = read_buffer.read<std::uint32_t>();
+            status_response.max_players = read_buffer.read<std::uint16_t>();
+            status_response.num_players = read_buffer.read<std::uint16_t>();
+            status_response.motd = read_buffer.read<std::string>();
+            status_response.game_version_minor = read_buffer.read<std::uint32_t>();
+            status_response.game_version_patch = read_buffer.read<std::uint32_t>();
+            dispatcher.trigger(status_response);
+            break;
+
+        case protocol::LoginRequest::ID:
+            login_request.peer = peer;
+            login_request.game_version_major = read_buffer.read<std::uint32_t>();
+            login_request.voxel_registry_checksum = read_buffer.read<std::uint64_t>();
+            login_request.item_registry_checksum = read_buffer.read<std::uint64_t>();
+            login_request.password_hash = read_buffer.read<std::uint64_t>();
+            login_request.username = read_buffer.read<std::string>();
+            login_request.game_version_minor = read_buffer.read<std::uint32_t>();
+            login_request.game_version_patch = read_buffer.read<std::uint32_t>();
+            dispatcher.trigger(login_request);
+            break;
+
+        case protocol::LoginResponse::ID:
+            login_response.peer = peer;
+            login_response.client_index = read_buffer.read<std::uint16_t>();
+            login_response.client_identity = read_buffer.read<std::uint64_t>();
+            login_response.server_tickrate = read_buffer.read<std::uint16_t>();
+            dispatcher.trigger(login_response);
+            break;
+
+        case protocol::Disconnect::ID:
+            disconnect.peer = peer;
+            disconnect.reason = read_buffer.read<std::string>();
+            dispatcher.trigger(disconnect);
+            break;
+
+        case protocol::ChunkVoxels::ID:
+            chunk_voxels.peer = peer;
+            chunk_voxels.chunk.x = read_buffer.read<std::int32_t>();
+            chunk_voxels.chunk.y = read_buffer.read<std::int32_t>();
+            chunk_voxels.chunk.z = read_buffer.read<std::int32_t>();
+            chunk_voxels.voxels.deserialize(read_buffer);
+            dispatcher.trigger(chunk_voxels);
+            break;
+
+        case protocol::EntityTransform::ID:
+            entity_transform.peer = peer;
+            entity_transform.entity = static_cast<entt::entity>(read_buffer.read<std::uint64_t>());
+            entity_transform.chunk.x = read_buffer.read<std::int32_t>();
+            entity_transform.chunk.y = read_buffer.read<std::int32_t>();
+            entity_transform.chunk.z = read_buffer.read<std::int32_t>();
+            entity_transform.local.x = read_buffer.read<float>();
+            entity_transform.local.y = read_buffer.read<float>();
+            entity_transform.local.z = read_buffer.read<float>();
+            entity_transform.angles.x = read_buffer.read<float>();
+            entity_transform.angles.y = read_buffer.read<float>();
+            entity_transform.angles.z = read_buffer.read<float>();
+            dispatcher.trigger(entity_transform);
+            break;
+
+        case protocol::EntityHead::ID:
+            entity_head.peer = peer;
+            entity_head.entity = static_cast<entt::entity>(read_buffer.read<std::uint64_t>());
+            entity_head.angles[0] = read_buffer.read<float>();
+            entity_head.angles[1] = read_buffer.read<float>();
+            entity_head.angles[2] = read_buffer.read<float>();
+            dispatcher.trigger(entity_head);
+            break;
+
+        case protocol::EntityVelocity::ID:
+            entity_velocity.peer = peer;
+            entity_velocity.entity = static_cast<entt::entity>(read_buffer.read<std::uint64_t>());
+            entity_velocity.value.x = read_buffer.read<float>();
+            entity_velocity.value.y = read_buffer.read<float>();
+            entity_velocity.value.z = read_buffer.read<float>();
+            dispatcher.trigger(entity_velocity);
+            break;
+
+        case protocol::SpawnPlayer::ID:
+            spawn_player.peer = peer;
+            spawn_player.entity = static_cast<entt::entity>(read_buffer.read<std::uint64_t>());
+            dispatcher.trigger(spawn_player);
+            break;
+
+        case protocol::ChatMessage::ID:
+            chat_message.peer = peer;
+            chat_message.type = read_buffer.read<std::uint16_t>();
+            chat_message.sender = read_buffer.read<std::string>();
+            chat_message.message = read_buffer.read<std::string>();
+            dispatcher.trigger(chat_message);
+            break;
+
+        case protocol::SetVoxel::ID:
+            set_voxel.peer = peer;
+            set_voxel.vpos.x = read_buffer.read<std::int64_t>();
+            set_voxel.vpos.y = read_buffer.read<std::int64_t>();
+            set_voxel.vpos.z = read_buffer.read<std::int64_t>();
+            set_voxel.voxel = read_buffer.read<std::uint16_t>();
+            set_voxel.flags = read_buffer.read<std::uint16_t>();
+            dispatcher.trigger(set_voxel);
+            break;
+
+        case protocol::RemoveEntity::ID:
+            remove_entity.peer = peer;
+            remove_entity.entity = static_cast<entt::entity>(read_buffer.read<std::uint64_t>());
+            dispatcher.trigger(remove_entity);
+            break;
+
+        case protocol::EntityPlayer::ID:
+            entity_player.peer = peer;
+            entity_player.entity = static_cast<entt::entity>(read_buffer.read<std::uint64_t>());
+            dispatcher.trigger(entity_player);
+            break;
+
+        case protocol::ScoreboardUpdate::ID:
+            scoreboard_update.peer = peer;
+            scoreboard_update.names.resize(read_buffer.read<std::uint16_t>());
+            for(std::size_t i = 0; i < scoreboard_update.names.size(); ++i)
+                scoreboard_update.names[i] = read_buffer.read<std::string>();
+            dispatcher.trigger(scoreboard_update);
+            break;
+
+        case protocol::RequestChunk::ID:
+            request_chunk.peer = peer;
+            request_chunk.cpos.x = read_buffer.read<std::uint32_t>();
+            request_chunk.cpos.y = read_buffer.read<std::uint32_t>();
+            request_chunk.cpos.z = read_buffer.read<std::uint32_t>();
+            dispatcher.trigger(request_chunk);
+            break;
+
+        case protocol::GenericSound::ID:
+            generic_sound.peer = peer;
+            generic_sound.sound = read_buffer.read<std::string>();
+            generic_sound.looping = read_buffer.read<std::uint8_t>();
+            generic_sound.pitch = read_buffer.read<float>();
+            dispatcher.trigger(generic_sound);
+            break;
+
+        case protocol::EntitySound::ID:
+            entity_sound.peer = peer;
+            entity_sound.entity = static_cast<entt::entity>(read_buffer.read<std::uint64_t>());
+            entity_sound.sound = read_buffer.read<std::string>();
+            entity_sound.looping = read_buffer.read<std::uint8_t>();
+            entity_sound.pitch = read_buffer.read<float>();
+            dispatcher.trigger(entity_sound);
+            break;
+
+        case protocol::DimensionInfo::ID:
+            dimension_info.peer = peer;
+            dimension_info.name = read_buffer.read<std::string>();
+            dimension_info.gravity = read_buffer.read<float>();
+            dispatcher.trigger(dimension_info);
+            break;
+    }
+}
+
+ENetPacket* protocol::utils::make_disconnect(std::string_view reason, enet_uint32 flags)
+{
+    protocol::Disconnect packet;
+    packet.reason = reason;
+    return protocol::encode(packet, flags);
+}
+
+ENetPacket* protocol::utils::make_chat_message(std::string_view message, enet_uint32 flags)
+{
+    protocol::ChatMessage packet;
+    packet.type = protocol::ChatMessage::TEXT_MESSAGE;
+    packet.message = message;
+    return protocol::encode(packet, flags);
+}
+
+ENetPacket* protocol::utils::make_chunk_voxels(world::Dimension* dimension, entt::entity entity, enet_uint32 flags)
+{
+    if(auto component = dimension->chunks.try_get<world::ChunkComponent>(entity)) {
+        protocol::ChunkVoxels packet;
+        packet.chunk = component->cpos;
+        packet.voxels = component->chunk->get_voxels();
+        return protocol::encode(packet, flags);
+    }
+
+    return nullptr;
+}
+
+ENetPacket* protocol::utils::make_entity_head(world::Dimension* dimension, entt::entity entity, enet_uint32 flags)
+{
+    if(auto component = dimension->entities.try_get<entity::Head>(entity)) {
+        protocol::EntityHead packet;
+        packet.entity = entity;
+        packet.angles = component->angles;
+        return protocol::encode(packet, flags);
+    }
+
+    return nullptr;
+}
+
+ENetPacket* protocol::utils::make_entity_transform(world::Dimension* dimension, entt::entity entity, enet_uint32 flags)
+{
+    if(auto component = dimension->entities.try_get<entity::Transform>(entity)) {
+        protocol::EntityTransform packet;
+        packet.entity = entity;
+        packet.chunk = component->chunk;
+        packet.local = component->local;
+        packet.angles = component->angles;
+        return protocol::encode(packet, flags);
+    }
+
+    return nullptr;
+}
+
+ENetPacket* protocol::utils::make_entity_velocity(world::Dimension* dimension, entt::entity entity, enet_uint32 flags)
+{
+    if(auto component = dimension->entities.try_get<entity::Velocity>(entity)) {
+        protocol::EntityVelocity packet;
+        packet.entity = entity;
+        packet.value = component->value;
+        return protocol::encode(packet, flags);
+    }
+
+    return nullptr;
+}
+
+ENetPacket* protocol::utils::make_entity_player(world::Dimension* dimension, entt::entity entity, enet_uint32 flags)
+{
+    if(dimension->entities.any_of<entity::Player>(entity)) {
+        protocol::EntityPlayer packet;
+        packet.entity = entity;
+        return protocol::encode(packet, flags);
+    }
+
+    return nullptr;
+}
+
+ENetPacket* protocol::utils::make_dimension_info(const world::Dimension* dimension)
+{
+    protocol::DimensionInfo packet;
+    packet.name = dimension->get_name();
+    packet.gravity = dimension->get_gravity();
+    return protocol::encode(packet, ENET_PACKET_FLAG_RELIABLE);
+}
diff --git a/src/game/shared/protocol.hh b/src/game/shared/protocol.hh
new file mode 100644
index 0000000..b222342
--- /dev/null
+++ b/src/game/shared/protocol.hh
@@ -0,0 +1,215 @@
+#pragma once
+
+#include "shared/world/chunk.hh"
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace protocol
+{
+constexpr static std::size_t MAX_CHAT = 16384;
+constexpr static std::size_t MAX_USERNAME = 64;
+constexpr static std::size_t MAX_SOUNDNAME = 1024;
+constexpr static std::uint16_t TICKRATE = 60;
+constexpr static std::uint16_t PORT = 43103;
+constexpr static std::uint8_t CHANNEL = 0;
+} // namespace protocol
+
+namespace protocol
+{
+template<std::uint16_t packet_id>
+struct Base {
+    constexpr static std::uint16_t ID = packet_id;
+    virtual ~Base(void) = default;
+    ENetPeer* peer { nullptr };
+};
+} // namespace protocol
+
+namespace protocol
+{
+struct StatusRequest;
+struct StatusResponse;
+struct LoginRequest;
+struct LoginResponse;
+struct Disconnect;
+struct ChunkVoxels;
+struct EntityTransform;
+struct EntityHead;
+struct EntityVelocity;
+struct SpawnPlayer;
+struct ChatMessage;
+struct SetVoxel;
+struct RemoveEntity;
+struct EntityPlayer;
+struct ScoreboardUpdate;
+struct RequestChunk;
+struct GenericSound;
+struct EntitySound;
+struct DimensionInfo;
+} // namespace protocol
+
+namespace protocol
+{
+ENetPacket* encode(const StatusRequest& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const StatusResponse& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const LoginRequest& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const LoginResponse& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const Disconnect& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const ChunkVoxels& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const EntityTransform& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const EntityHead& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const EntityVelocity& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const SpawnPlayer& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const ChatMessage& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const SetVoxel& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const RemoveEntity& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const EntityPlayer& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const ScoreboardUpdate& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const RequestChunk& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const GenericSound& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const EntitySound& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* encode(const DimensionInfo& packet, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+} // namespace protocol
+
+namespace protocol
+{
+void broadcast(ENetHost* host, ENetPacket* packet);
+void broadcast(ENetHost* host, ENetPacket* packet, ENetPeer* except);
+void send(ENetPeer* peer, ENetPacket* packet);
+} // namespace protocol
+
+namespace protocol
+{
+void decode(entt::dispatcher& dispatcher, const ENetPacket* packet, ENetPeer* peer);
+} // namespace protocol
+
+namespace protocol::utils
+{
+ENetPacket* make_disconnect(std::string_view reason, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* make_chat_message(std::string_view message, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+} // namespace protocol::utils
+
+namespace protocol::utils
+{
+ENetPacket* make_chunk_voxels(world::Dimension* dimension, entt::entity entity, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+} // namespace protocol::utils
+
+namespace protocol::utils
+{
+ENetPacket* make_entity_head(world::Dimension* dimension, entt::entity entity, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* make_entity_transform(world::Dimension* dimension, entt::entity entity, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* make_entity_velocity(world::Dimension* dimension, entt::entity entity, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* make_entity_player(world::Dimension* dimension, entt::entity entity, enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE);
+ENetPacket* make_dimension_info(const world::Dimension* dimension);
+} // namespace protocol::utils
+
+struct protocol::StatusRequest final : public protocol::Base<0x0000> {
+    std::uint32_t game_version_major; // renamed from 'version' in v16.x.x
+};
+
+struct protocol::StatusResponse final : public protocol::Base<0x0001> {
+    std::uint32_t game_version_major; // renamed from 'version' in v16.x.x
+    std::uint16_t max_players;
+    std::uint16_t num_players;
+    std::string motd;
+    std::uint32_t game_version_minor { UINT32_MAX }; // added in v16.x.x
+    std::uint32_t game_version_patch { UINT32_MAX };
+};
+
+struct protocol::LoginRequest final : public protocol::Base<0x0002> {
+    std::uint32_t game_version_major; // renamed from 'version' in v16.x.x
+    std::uint64_t voxel_registry_checksum;
+    std::uint64_t item_registry_checksum;
+    std::uint64_t password_hash;
+    std::string username;
+    std::uint32_t game_version_minor; // added in v16.x.x
+    std::uint32_t game_version_patch;
+};
+
+struct protocol::LoginResponse final : public protocol::Base<0x0003> {
+    std::uint16_t client_index;
+    std::uint64_t client_identity;
+    std::uint16_t server_tickrate;
+};
+
+struct protocol::Disconnect final : public protocol::Base<0x0004> {
+    std::string reason;
+};
+
+struct protocol::ChunkVoxels final : public protocol::Base<0x0005> {
+    chunk_pos chunk;
+    world::VoxelStorage voxels;
+};
+
+struct protocol::EntityTransform final : public protocol::Base<0x0006> {
+    entt::entity entity;
+    chunk_pos chunk;
+    glm::fvec3 local;
+    glm::fvec3 angles;
+};
+
+struct protocol::EntityHead final : public protocol::Base<0x0007> {
+    entt::entity entity;
+    glm::fvec3 angles;
+};
+
+struct protocol::EntityVelocity final : public protocol::Base<0x0008> {
+    entt::entity entity;
+    glm::fvec3 value;
+};
+
+struct protocol::SpawnPlayer final : public protocol::Base<0x0009> {
+    entt::entity entity;
+};
+
+struct protocol::ChatMessage final : public protocol::Base<0x000A> {
+    constexpr static std::uint16_t TEXT_MESSAGE = 0x0000;
+    constexpr static std::uint16_t PLAYER_JOIN = 0x0001;
+    constexpr static std::uint16_t PLAYER_LEAVE = 0x0002;
+
+    std::uint16_t type;
+    std::string sender;
+    std::string message;
+};
+
+struct protocol::SetVoxel final : public protocol::Base<0x000B> {
+    voxel_pos vpos;
+    voxel_id voxel;
+    std::uint16_t flags;
+};
+
+struct protocol::RemoveEntity final : public protocol::Base<0x000C> {
+    entt::entity entity;
+};
+
+struct protocol::EntityPlayer final : public protocol::Base<0x000D> {
+    entt::entity entity;
+};
+
+struct protocol::ScoreboardUpdate final : public protocol::Base<0x000E> {
+    std::vector<std::string> names;
+};
+
+struct protocol::RequestChunk final : public protocol::Base<0x000F> {
+    chunk_pos cpos;
+};
+
+struct protocol::GenericSound final : public protocol::Base<0x0010> {
+    std::string sound;
+    bool looping;
+    float pitch;
+};
+
+struct protocol::EntitySound final : public protocol::Base<0x0011> {
+    entt::entity entity;
+    std::string sound;
+    bool looping;
+    float pitch;
+};
+
+struct protocol::DimensionInfo final : public protocol::Base<0x0012> {
+    std::string name;
+    float gravity;
+};
diff --git a/src/game/shared/splash.cc b/src/game/shared/splash.cc
new file mode 100644
index 0000000..4568779
--- /dev/null
+++ b/src/game/shared/splash.cc
@@ -0,0 +1,67 @@
+#include "shared/pch.hh"
+
+#include "shared/splash.hh"
+
+#include "core/io/physfs.hh"
+
+constexpr static std::string_view SPLASHES_FILENAME_CLIENT = "misc/splashes_client.txt";
+constexpr static std::string_view SPLASHES_FILENAME_SERVER = "misc/splashes_server.txt";
+constexpr static std::size_t SPLASH_SERVER_MAX_LENGTH = 32;
+
+static std::mt19937_64 splash_random;
+static std::vector<std::string> splash_lines;
+
+static std::string sanitize_line(const std::string& line)
+{
+    std::string result;
+
+    for(auto chr : line) {
+        if(chr != '\r' && chr != '\n') {
+            result.push_back(chr);
+        }
+    }
+
+    return result;
+}
+
+static void splash_init_filename(std::string_view filename)
+{
+    if(auto file = PHYSFS_openRead(std::string(filename).c_str())) {
+        auto source = std::string(PHYSFS_fileLength(file), char(0x00));
+        PHYSFS_readBytes(file, source.data(), source.size());
+        PHYSFS_close(file);
+
+        std::string line;
+        std::istringstream stream(source);
+
+        while(std::getline(stream, line))
+            splash_lines.push_back(sanitize_line(line));
+        splash_random.seed(std::random_device()());
+    }
+    else {
+        splash_lines.push_back(std::format("{}: {}", filename, io::physfs_error()));
+        splash_random.seed(std::random_device()());
+    }
+}
+
+void splash::init_client(void)
+{
+    splash_init_filename(SPLASHES_FILENAME_CLIENT);
+}
+
+void splash::init_server(void)
+{
+    splash_init_filename(SPLASHES_FILENAME_SERVER);
+
+    // Server browser GUI should be able to display
+    // these splash messages without text clipping over
+    for(int i = 0; i < splash_lines.size(); i++) {
+        splash_lines[i] = splash_lines[i].substr(0, SPLASH_SERVER_MAX_LENGTH);
+    }
+}
+
+std::string_view splash::get(void)
+{
+    std::uniform_int_distribution<std::size_t> dist(0, splash_lines.size() - 1);
+    return splash_lines.at(dist(splash_random));
+}
diff --git a/src/game/shared/splash.hh b/src/game/shared/splash.hh
new file mode 100644
index 0000000..be80cd6
--- /dev/null
+++ b/src/game/shared/splash.hh
@@ -0,0 +1,8 @@
+#pragma once
+
+namespace splash
+{
+void init_client(void);
+void init_server(void);
+std::string_view get(void);
+} // namespace splash
diff --git a/src/game/shared/types.hh b/src/game/shared/types.hh
new file mode 100644
index 0000000..792ed0f
--- /dev/null
+++ b/src/game/shared/types.hh
@@ -0,0 +1,40 @@
+#pragma once
+
+using item_id = std::uint32_t;
+constexpr static item_id NULL_ITEM_ID = UINT32_C(0x00000000);
+constexpr static item_id MAX_ITEM_ID = UINT32_C(0xFFFFFFFF);
+
+using voxel_id = std::uint16_t;
+constexpr static voxel_id NULL_VOXEL_ID = UINT16_C(0x0000);
+constexpr static voxel_id MAX_VOXEL_ID = UINT16_C(0xFFFF);
+
+using chunk_pos = glm::vec<3, std::int32_t>;
+using local_pos = glm::vec<3, std::int16_t>;
+using voxel_pos = glm::vec<3, std::int64_t>;
+
+using chunk_pos_xz = glm::vec<2, chunk_pos::value_type>;
+using local_pos_xz = glm::vec<2, local_pos::value_type>;
+using voxel_pos_xz = glm::vec<2, local_pos::value_type>;
+
+template<>
+struct std::hash<chunk_pos> final {
+    constexpr inline std::size_t operator()(const chunk_pos& cpos) const
+    {
+        std::size_t value = 0;
+        value ^= cpos.x * 73856093;
+        value ^= cpos.y * 19349663;
+        value ^= cpos.z * 83492791;
+        return value;
+    }
+};
+
+template<>
+struct std::hash<chunk_pos_xz> final {
+    constexpr inline std::size_t operator()(const chunk_pos_xz& cwpos) const
+    {
+        std::size_t value = 0;
+        value ^= cwpos.x * 73856093;
+        value ^= cwpos.y * 19349663;
+        return value;
+    }
+};
diff --git a/src/game/shared/world/CMakeLists.txt b/src/game/shared/world/CMakeLists.txt
new file mode 100644
index 0000000..db3f370
--- /dev/null
+++ b/src/game/shared/world/CMakeLists.txt
@@ -0,0 +1,20 @@
+target_sources(shared PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_aabb.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/dimension.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/dimension.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/feature.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/feature.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/item_registry.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/item_registry.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/item.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/item.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/ray_dda.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/ray_dda.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_registry.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_registry.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_storage.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_storage.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel.hh")
diff --git a/src/game/shared/world/chunk.cc b/src/game/shared/world/chunk.cc
new file mode 100644
index 0000000..e2d60cb
--- /dev/null
+++ b/src/game/shared/world/chunk.cc
@@ -0,0 +1,72 @@
+#include "shared/pch.hh"
+
+#include "shared/world/chunk.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+
+world::Chunk::Chunk(entt::entity entity, Dimension* dimension)
+{
+    m_entity = entity;
+    m_dimension = dimension;
+    m_voxels.fill(NULL_VOXEL_ID);
+    m_biome = BIOME_VOID;
+}
+
+const world::Voxel* world::Chunk::get_voxel(const local_pos& lpos) const
+{
+    return get_voxel(coord::to_index(lpos));
+}
+
+const world::Voxel* world::Chunk::get_voxel(const std::size_t index) const
+{
+    if(index >= CHUNK_VOLUME) {
+        return nullptr;
+    }
+
+    return voxel_registry::find(m_voxels[index]);
+}
+
+void world::Chunk::set_voxel(const Voxel* voxel, const local_pos& lpos)
+{
+    set_voxel(voxel, coord::to_index(lpos));
+}
+
+void world::Chunk::set_voxel(const Voxel* voxel, const std::size_t index)
+{
+    if(index < CHUNK_VOLUME) {
+        m_voxels[index] = voxel ? voxel->get_id() : NULL_VOXEL_ID;
+        return;
+    }
+}
+
+const world::VoxelStorage& world::Chunk::get_voxels(void) const
+{
+    return m_voxels;
+}
+
+void world::Chunk::set_voxels(const VoxelStorage& voxels)
+{
+    m_voxels = voxels;
+}
+
+unsigned int world::Chunk::get_biome(void) const
+{
+    return m_biome;
+}
+
+void world::Chunk::set_biome(unsigned int biome)
+{
+    m_biome = biome;
+}
+
+entt::entity world::Chunk::get_entity(void) const
+{
+    return m_entity;
+}
+
+world::Dimension* world::Chunk::get_dimension(void) const
+{
+    return m_dimension;
+}
diff --git a/src/game/shared/world/chunk.hh b/src/game/shared/world/chunk.hh
new file mode 100644
index 0000000..7518127
--- /dev/null
+++ b/src/game/shared/world/chunk.hh
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "shared/world/voxel_storage.hh"
+
+#include "shared/types.hh"
+
+constexpr static unsigned int BIOME_VOID = 0U;
+
+namespace world
+{
+class Dimension;
+class Voxel;
+} // namespace world
+
+namespace world
+{
+class Chunk final {
+public:
+    explicit Chunk(entt::entity entity, Dimension* dimension);
+    virtual ~Chunk(void) = default;
+
+    const Voxel* get_voxel(const local_pos& lpos) const;
+    const Voxel* get_voxel(const std::size_t index) const;
+
+    void set_voxel(const Voxel* voxel, const local_pos& lpos);
+    void set_voxel(const Voxel* voxel, const std::size_t index);
+
+    const VoxelStorage& get_voxels(void) const;
+    void set_voxels(const VoxelStorage& voxels);
+
+    unsigned int get_biome(void) const;
+    void set_biome(unsigned int biome);
+
+    entt::entity get_entity(void) const;
+    Dimension* get_dimension(void) const;
+
+private:
+    entt::entity m_entity;
+    Dimension* m_dimension;
+    VoxelStorage m_voxels;
+    unsigned int m_biome;
+};
+} // namespace world
diff --git a/src/game/shared/world/chunk_aabb.hh b/src/game/shared/world/chunk_aabb.hh
new file mode 100644
index 0000000..f07d3e1
--- /dev/null
+++ b/src/game/shared/world/chunk_aabb.hh
@@ -0,0 +1,10 @@
+#pragma once
+
+#include "core/math/aabb.hh"
+
+#include "shared/types.hh"
+
+namespace world
+{
+using ChunkAABB = math::AABB<chunk_pos::value_type>;
+} // namespace world
diff --git a/src/game/shared/world/dimension.cc b/src/game/shared/world/dimension.cc
new file mode 100644
index 0000000..0088753
--- /dev/null
+++ b/src/game/shared/world/dimension.cc
@@ -0,0 +1,187 @@
+#include "shared/pch.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+#include "shared/globals.hh"
+
+world::Dimension::Dimension(std::string_view name, float gravity)
+{
+    m_name = name;
+    m_gravity = gravity;
+}
+
+world::Dimension::~Dimension(void)
+{
+    for(const auto it : m_chunkmap)
+        delete it.second;
+    entities.clear();
+    chunks.clear();
+}
+
+std::string_view world::Dimension::get_name(void) const
+{
+    return m_name;
+}
+
+float world::Dimension::get_gravity(void) const
+{
+    return m_gravity;
+}
+
+world::Chunk* world::Dimension::create_chunk(const chunk_pos& cpos)
+{
+    auto it = m_chunkmap.find(cpos);
+
+    if(it != m_chunkmap.cend()) {
+        // Chunk already exists
+        return it->second;
+    }
+
+    auto entity = chunks.create();
+    auto chunk = new Chunk(entity, this);
+
+    auto& component = chunks.emplace<ChunkComponent>(entity);
+    component.chunk = chunk;
+    component.cpos = cpos;
+
+    ChunkCreateEvent event;
+    event.dimension = this;
+    event.chunk = chunk;
+    event.cpos = cpos;
+
+    globals::dispatcher.trigger(event);
+
+    return m_chunkmap.insert_or_assign(cpos, std::move(chunk)).first->second;
+}
+
+world::Chunk* world::Dimension::find_chunk(entt::entity entity) const
+{
+    if(chunks.valid(entity)) {
+        return chunks.get<ChunkComponent>(entity).chunk;
+    }
+    else {
+        return nullptr;
+    }
+}
+
+world::Chunk* world::Dimension::find_chunk(const chunk_pos& cpos) const
+{
+    auto it = m_chunkmap.find(cpos);
+
+    if(it != m_chunkmap.cend()) {
+        return it->second;
+    }
+    else {
+        return nullptr;
+    }
+}
+
+void world::Dimension::remove_chunk(entt::entity entity)
+{
+    if(chunks.valid(entity)) {
+        auto& component = chunks.get<ChunkComponent>(entity);
+        m_chunkmap.erase(component.cpos);
+        chunks.destroy(entity);
+    }
+}
+
+void world::Dimension::remove_chunk(const chunk_pos& cpos)
+{
+    auto it = m_chunkmap.find(cpos);
+
+    if(it != m_chunkmap.cend()) {
+        chunks.destroy(it->second->get_entity());
+        m_chunkmap.erase(it);
+    }
+}
+
+void world::Dimension::remove_chunk(Chunk* chunk)
+{
+    if(chunk) {
+        const auto& component = chunks.get<ChunkComponent>(chunk->get_entity());
+        m_chunkmap.erase(component.cpos);
+        chunks.destroy(chunk->get_entity());
+    }
+}
+
+const world::Voxel* world::Dimension::get_voxel(const voxel_pos& vpos) const
+{
+    auto cpos = coord::to_chunk(vpos);
+    auto lpos = coord::to_local(vpos);
+
+    if(auto chunk = find_chunk(cpos)) {
+        return chunk->get_voxel(lpos);
+    }
+
+    return nullptr;
+}
+
+const world::Voxel* world::Dimension::get_voxel(const chunk_pos& cpos, const local_pos& lpos) const
+{
+    // This allows accessing get_voxel with negative
+    // local coordinates that usually would result in an
+    // out-of-range values; this is useful for per-voxel update logic
+    return get_voxel(coord::to_voxel(cpos, lpos));
+}
+
+bool world::Dimension::set_voxel(const Voxel* voxel, const voxel_pos& vpos)
+{
+    auto cpos = coord::to_chunk(vpos);
+    auto lpos = coord::to_local(vpos);
+
+    if(auto chunk = find_chunk(cpos)) {
+        if(auto old_voxel = chunk->get_voxel(lpos)) {
+            if(old_voxel != voxel) {
+                // Notify the old voxel that it is
+                // being replaced with a different voxel
+                old_voxel->on_remove(this, vpos);
+            }
+        }
+
+        chunk->set_voxel(voxel, lpos);
+
+        if(voxel) {
+            // If we're not placing air, notify the
+            // new voxel that it has been placed
+            voxel->on_place(this, vpos);
+        }
+
+        VoxelSetEvent event;
+        event.dimension = this;
+        event.voxel = voxel;
+        event.cpos = cpos;
+        event.lpos = lpos;
+        event.chunk = chunk;
+
+        globals::dispatcher.trigger(event);
+
+        return true;
+    }
+
+    return false;
+}
+
+bool world::Dimension::set_voxel(const Voxel* voxel, const chunk_pos& cpos, const local_pos& lpos)
+{
+    // This allows accessing set_voxel with negative
+    // local coordinates that usually would result in an
+    // out-of-range values; this is useful for per-voxel update logic
+    return set_voxel(voxel, coord::to_voxel(cpos, lpos));
+}
+
+void world::Dimension::init(io::ConfigMap& config)
+{
+}
+
+void world::Dimension::init_late(std::uint64_t global_seed)
+{
+}
+
+bool world::Dimension::generate(const chunk_pos& cpos, VoxelStorage& voxels)
+{
+    return false;
+}
diff --git a/src/game/shared/world/dimension.hh b/src/game/shared/world/dimension.hh
new file mode 100644
index 0000000..6549bf6
--- /dev/null
+++ b/src/game/shared/world/dimension.hh
@@ -0,0 +1,101 @@
+#pragma once
+
+#include "shared/const.hh"
+#include "shared/types.hh"
+
+namespace io
+{
+class ConfigMap;
+} // namespace io
+
+namespace world
+{
+class Chunk;
+class Voxel;
+class VoxelStorage;
+} // namespace world
+
+namespace world
+{
+using dimension_entropy_map = std::array<std::uint64_t, CHUNK_AREA>;
+using dimension_height_map = std::array<voxel_pos::value_type, CHUNK_AREA>;
+} // namespace world
+
+namespace world
+{
+class Dimension {
+public:
+    explicit Dimension(std::string_view name, float gravity);
+    virtual ~Dimension(void);
+
+    std::string_view get_name(void) const;
+    float get_gravity(void) const;
+
+public:
+    Chunk* create_chunk(const chunk_pos& cpos);
+    Chunk* find_chunk(entt::entity entity) const;
+    Chunk* find_chunk(const chunk_pos& cpos) const;
+
+    void remove_chunk(entt::entity entity);
+    void remove_chunk(const chunk_pos& cpos);
+    void remove_chunk(Chunk* chunk);
+
+public:
+    const Voxel* get_voxel(const voxel_pos& vpos) const;
+    const Voxel* get_voxel(const chunk_pos& cpos, const local_pos& lpos) const;
+
+    bool set_voxel(const Voxel* voxel, const voxel_pos& vpos);
+    bool set_voxel(const Voxel* voxel, const chunk_pos& cpos, const local_pos& lpos);
+
+public:
+    virtual void init(io::ConfigMap& config);
+    virtual void init_late(std::uint64_t global_seed);
+    virtual bool generate(const chunk_pos& cpos, VoxelStorage& voxels);
+
+public:
+    entt::registry chunks;
+    entt::registry entities;
+
+private:
+    std::string m_name;
+    emhash8::HashMap<chunk_pos, Chunk*> m_chunkmap;
+    float m_gravity;
+};
+} // namespace world
+
+namespace world
+{
+struct ChunkComponent final {
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+} // namespace world
+
+namespace world
+{
+struct ChunkCreateEvent final {
+    Dimension* dimension;
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+
+struct ChunkDestroyEvent final {
+    Dimension* dimension;
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+
+struct ChunkUpdateEvent final {
+    Dimension* dimension;
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+
+struct VoxelSetEvent final {
+    Dimension* dimension;
+    const Voxel* voxel;
+    chunk_pos cpos;
+    local_pos lpos;
+    Chunk* chunk;
+};
+} // namespace world
diff --git a/src/game/shared/world/feature.cc b/src/game/shared/world/feature.cc
new file mode 100644
index 0000000..2468473
--- /dev/null
+++ b/src/game/shared/world/feature.cc
@@ -0,0 +1,75 @@
+#include "shared/pch.hh"
+
+#include "shared/world/feature.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+#include "shared/world/voxel.hh"
+
+#include "shared/coord.hh"
+
+void world::Feature::place(const voxel_pos& vpos, Dimension* dimension) const
+{
+    for(const auto [rpos, voxel, overwrite] : (*this)) {
+        auto it_vpos = vpos + rpos;
+        auto it_cpos = coord::to_chunk(it_vpos);
+
+        if(auto chunk = dimension->create_chunk(it_cpos)) {
+            auto it_lpos = coord::to_local(it_vpos);
+            auto it_index = coord::to_index(it_lpos);
+
+            if(chunk->get_voxel(it_index) && !overwrite) {
+                // There is something in the way
+                // and the called intentionally requested
+                // we do not force feature to overwrite voxels
+                continue;
+            }
+
+            chunk->set_voxel(voxel, it_index);
+        }
+    }
+}
+
+void world::Feature::place(const voxel_pos& vpos, const chunk_pos& cpos, Chunk& chunk) const
+{
+    for(const auto [rpos, voxel, overwrite] : (*this)) {
+        auto it_vpos = vpos + rpos;
+        auto it_cpos = coord::to_chunk(it_vpos);
+
+        if(it_cpos == cpos) {
+            auto it_lpos = coord::to_local(it_vpos);
+            auto it_index = coord::to_index(it_lpos);
+
+            if(chunk.get_voxel(it_index) && !overwrite) {
+                // There is something in the way
+                // and the called intentionally requested
+                // we do not force feature to overwrite voxels
+                continue;
+            }
+
+            chunk.set_voxel(voxel, it_index);
+        }
+    }
+}
+
+void world::Feature::place(const voxel_pos& vpos, const chunk_pos& cpos, VoxelStorage& voxels) const
+{
+    for(const auto [rpos, voxel, overwrite] : (*this)) {
+        auto it_vpos = vpos + rpos;
+        auto it_cpos = coord::to_chunk(it_vpos);
+
+        if(it_cpos == cpos) {
+            auto it_lpos = coord::to_local(it_vpos);
+            auto it_index = coord::to_index(it_lpos);
+
+            if(voxels[it_index] && !overwrite) {
+                // There is something in the way
+                // and the called intentionally requested
+                // we do not force feature to overwrite voxels
+                continue;
+            }
+
+            voxels[it_index] = voxel ? voxel->get_id() : NULL_VOXEL_ID;
+        }
+    }
+}
diff --git a/src/game/shared/world/feature.hh b/src/game/shared/world/feature.hh
new file mode 100644
index 0000000..0d28b20
--- /dev/null
+++ b/src/game/shared/world/feature.hh
@@ -0,0 +1,25 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Chunk;
+class Dimension;
+class Voxel;
+class VoxelStorage;
+} // namespace world
+
+namespace world
+{
+class Feature final : public std::vector<std::tuple<voxel_pos, const Voxel*, bool>> {
+public:
+    Feature(void) = default;
+    virtual ~Feature(void) = default;
+
+public:
+    void place(const voxel_pos& vpos, Dimension* dimension) const;
+    void place(const voxel_pos& vpos, const chunk_pos& cpos, Chunk& chunk) const;
+    void place(const voxel_pos& vpos, const chunk_pos& cpos, VoxelStorage& voxels) const;
+};
+} // namespace world
diff --git a/src/game/shared/world/item.cc b/src/game/shared/world/item.cc
new file mode 100644
index 0000000..5e60609
--- /dev/null
+++ b/src/game/shared/world/item.cc
@@ -0,0 +1,55 @@
+#include "shared/pch.hh"
+
+#include "shared/world/item.hh"
+
+#include "core/math/crc64.hh"
+
+#include "shared/world/voxel.hh"
+
+world::Item::Item(const Item& source, item_id id) noexcept : Item(source)
+{
+    m_id = id;
+}
+
+void world::Item::set_cached_texture(resource_ptr<TextureGUI> texture) const noexcept
+{
+    m_cached_texture = std::move(texture);
+}
+
+std::uint64_t world::Item::get_checksum(std::uint64_t combine) const
+{
+    combine = math::crc64(m_name.data(), m_name.size(), combine);
+    combine = math::crc64(m_texture.data(), m_texture.size(), combine);
+
+    std::uint32_t id = m_place_voxel ? m_place_voxel->get_id() : NULL_VOXEL_ID;
+    combine = math::crc64(&id, sizeof(id), combine);
+
+    return combine;
+}
+
+world::ItemBuilder::ItemBuilder(std::string_view name)
+{
+    set_name(name);
+}
+
+void world::ItemBuilder::set_name(std::string_view name)
+{
+    assert(name.size());
+
+    m_name = name;
+}
+
+void world::ItemBuilder::set_texture(std::string_view texture)
+{
+    m_texture = texture;
+}
+
+void world::ItemBuilder::set_place_voxel(const Voxel* place_voxel)
+{
+    m_place_voxel = place_voxel;
+}
+
+std::unique_ptr<world::Item> world::ItemBuilder::build(item_id id) const
+{
+    return std::make_unique<Item>(*this, id);
+}
diff --git a/src/game/shared/world/item.hh b/src/game/shared/world/item.hh
new file mode 100644
index 0000000..ffa7f5c
--- /dev/null
+++ b/src/game/shared/world/item.hh
@@ -0,0 +1,84 @@
+#pragma once
+
+#include "core/resource/resource.hh"
+
+#include "shared/types.hh"
+
+// This resource is only defined client-side and
+// resource_ptr<TextureGUI> should remain set to null
+// anywhere else in the shared and server code
+struct TextureGUI;
+
+namespace world
+{
+class Voxel;
+} // namespace world
+
+namespace world
+{
+class Item {
+public:
+    Item(void) = default;
+    explicit Item(const Item& source, item_id id) noexcept;
+
+    constexpr std::string_view get_name(void) const noexcept;
+    constexpr item_id get_id(void) const noexcept;
+
+    constexpr std::string_view get_texture(void) const noexcept;
+    constexpr const Voxel* get_place_voxel(void) const noexcept;
+
+    constexpr resource_ptr<TextureGUI>& get_cached_texture(void) const noexcept;
+    void set_cached_texture(resource_ptr<TextureGUI> texture) const noexcept;
+
+    std::uint64_t get_checksum(std::uint64_t combine = 0U) const;
+
+protected:
+    std::string m_name;
+    item_id m_id { NULL_ITEM_ID };
+
+    std::string m_texture;
+    const Voxel* m_place_voxel { nullptr };
+
+    mutable resource_ptr<TextureGUI> m_cached_texture; // Client-side only
+};
+} // namespace world
+
+namespace world
+{
+class ItemBuilder final : public Item {
+public:
+    explicit ItemBuilder(std::string_view name);
+
+    void set_name(std::string_view name);
+
+    void set_texture(std::string_view texture);
+    void set_place_voxel(const Voxel* place_voxel);
+
+    std::unique_ptr<Item> build(item_id id) const;
+};
+} // namespace world
+
+constexpr std::string_view world::Item::get_name(void) const noexcept
+{
+    return m_name;
+}
+
+constexpr item_id world::Item::get_id(void) const noexcept
+{
+    return m_id;
+}
+
+constexpr std::string_view world::Item::get_texture(void) const noexcept
+{
+    return m_texture;
+}
+
+constexpr const world::Voxel* world::Item::get_place_voxel(void) const noexcept
+{
+    return m_place_voxel;
+}
+
+constexpr resource_ptr<TextureGUI>& world::Item::get_cached_texture(void) const noexcept
+{
+    return m_cached_texture;
+}
diff --git a/src/game/shared/world/item_registry.cc b/src/game/shared/world/item_registry.cc
new file mode 100644
index 0000000..d89abe9
--- /dev/null
+++ b/src/game/shared/world/item_registry.cc
@@ -0,0 +1,68 @@
+#include "shared/pch.hh"
+
+#include "shared/world/item_registry.hh"
+
+#include "core/math/crc64.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+static std::uint64_t registry_checksum = 0U;
+std::unordered_map<std::string, item_id> world::item_registry::names = {};
+std::vector<std::unique_ptr<world::Item>> world::item_registry::items = {};
+
+static void recalculate_checksum(void)
+{
+    registry_checksum = 0U;
+
+    for(const auto& item : world::item_registry::items) {
+        registry_checksum = item->get_checksum(registry_checksum);
+    }
+}
+
+world::Item* world::item_registry::register_item(const ItemBuilder& builder)
+{
+    assert(builder.get_name().size());
+    assert(nullptr == find(builder.get_name()));
+
+    const auto id = static_cast<item_id>(1 + items.size());
+
+    std::unique_ptr<Item> item(builder.build(id));
+    names.emplace(std::string(builder.get_name()), id);
+    items.push_back(std::move(item));
+
+    recalculate_checksum();
+
+    return items.back().get();
+}
+
+world::Item* world::item_registry::find(std::string_view name)
+{
+    const auto it = names.find(std::string(name));
+
+    if(it == names.end()) {
+        return nullptr;
+    }
+
+    return items[it->second - 1].get();
+}
+
+world::Item* world::item_registry::find(const item_id item)
+{
+    if(item == NULL_ITEM_ID || item > items.size()) {
+        return nullptr;
+    }
+
+    return items[item - 1].get();
+}
+
+void world::item_registry::purge(void)
+{
+    registry_checksum = 0U;
+    items.clear();
+    names.clear();
+}
+
+std::uint64_t world::item_registry::get_checksum(void)
+{
+    return registry_checksum;
+}
diff --git a/src/game/shared/world/item_registry.hh b/src/game/shared/world/item_registry.hh
new file mode 100644
index 0000000..a841a2d
--- /dev/null
+++ b/src/game/shared/world/item_registry.hh
@@ -0,0 +1,26 @@
+#pragma once
+
+#include "shared/world/item.hh"
+
+namespace world::item_registry
+{
+extern std::unordered_map<std::string, item_id> names;
+extern std::vector<std::unique_ptr<Item>> items;
+} // namespace world::item_registry
+
+namespace world::item_registry
+{
+Item* register_item(const ItemBuilder& builder);
+Item* find(std::string_view name);
+Item* find(const item_id item);
+} // namespace world::item_registry
+
+namespace world::item_registry
+{
+void purge(void);
+} // namespace world::item_registry
+
+namespace world::item_registry
+{
+std::uint64_t get_checksum(void);
+} // namespace world::item_registry
diff --git a/src/game/shared/world/ray_dda.cc b/src/game/shared/world/ray_dda.cc
new file mode 100644
index 0000000..d6383b9
--- /dev/null
+++ b/src/game/shared/world/ray_dda.cc
@@ -0,0 +1,107 @@
+#include "shared/pch.hh"
+
+#include "shared/world/ray_dda.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/coord.hh"
+
+world::RayDDA::RayDDA(const world::Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    reset(dimension, start_chunk, start_fpos, direction);
+}
+
+world::RayDDA::RayDDA(const world::Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    reset(dimension, start_chunk, start_fpos, direction);
+}
+
+void world::RayDDA::reset(const world::Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    this->dimension = dimension;
+    this->start_chunk = start_chunk;
+    this->start_fpos = start_fpos;
+    this->direction = direction;
+
+    this->delta_dist.x = direction.x ? glm::abs(1.0f / direction.x) : std::numeric_limits<float>::max();
+    this->delta_dist.y = direction.y ? glm::abs(1.0f / direction.y) : std::numeric_limits<float>::max();
+    this->delta_dist.z = direction.z ? glm::abs(1.0f / direction.z) : std::numeric_limits<float>::max();
+
+    this->distance = 0.0f;
+    this->vpos = coord::to_voxel(start_chunk, start_fpos);
+    this->vnormal = voxel_pos(0, 0, 0);
+
+    // Need this for initial direction calculations
+    auto lpos = coord::to_local(start_fpos);
+
+    if(direction.x < 0.0f) {
+        this->side_dist.x = this->delta_dist.x * (start_fpos.x - lpos.x);
+        this->vstep.x = voxel_pos::value_type(-1);
+    }
+    else {
+        this->side_dist.x = this->delta_dist.x * (lpos.x + 1.0f - start_fpos.x);
+        this->vstep.x = voxel_pos::value_type(+1);
+    }
+
+    if(direction.y < 0.0f) {
+        this->side_dist.y = this->delta_dist.y * (start_fpos.y - lpos.y);
+        this->vstep.y = voxel_pos::value_type(-1);
+    }
+    else {
+        this->side_dist.y = this->delta_dist.y * (lpos.y + 1.0f - start_fpos.y);
+        this->vstep.y = voxel_pos::value_type(+1);
+    }
+
+    if(direction.z < 0.0f) {
+        this->side_dist.z = this->delta_dist.z * (start_fpos.z - lpos.z);
+        this->vstep.z = voxel_pos::value_type(-1);
+    }
+    else {
+        this->side_dist.z = this->delta_dist.z * (lpos.z + 1.0f - start_fpos.z);
+        this->vstep.z = voxel_pos::value_type(+1);
+    }
+}
+
+void world::RayDDA::reset(const world::Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    reset(&dimension, start_chunk, start_fpos, direction);
+}
+
+const world::Voxel* world::RayDDA::step(void)
+{
+    if(side_dist.x < side_dist.z) {
+        if(side_dist.x < side_dist.y) {
+            vnormal = voxel_pos(-vstep.x, 0, 0);
+            distance = side_dist.x;
+            side_dist.x += delta_dist.x;
+            vpos.x += vstep.x;
+        }
+        else {
+            vnormal = voxel_pos(0, -vstep.y, 0);
+            distance = side_dist.y;
+            side_dist.y += delta_dist.y;
+            vpos.y += vstep.y;
+        }
+    }
+    else {
+        if(side_dist.z < side_dist.y) {
+            vnormal = voxel_pos(0, 0, -vstep.z);
+            distance = side_dist.z;
+            side_dist.z += delta_dist.z;
+            vpos.z += vstep.z;
+        }
+        else {
+            vnormal = voxel_pos(0, -vstep.y, 0);
+            distance = side_dist.y;
+            side_dist.y += delta_dist.y;
+            vpos.y += vstep.y;
+        }
+    }
+
+    // This is slower than I want it to be
+    return dimension->get_voxel(vpos);
+}
diff --git a/src/game/shared/world/ray_dda.hh b/src/game/shared/world/ray_dda.hh
new file mode 100644
index 0000000..0f548ba
--- /dev/null
+++ b/src/game/shared/world/ray_dda.hh
@@ -0,0 +1,38 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Dimension;
+class Voxel;
+} // namespace world
+
+namespace world
+{
+class RayDDA final {
+public:
+    RayDDA(void) = default;
+    explicit RayDDA(const Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+    explicit RayDDA(const Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+
+    void reset(const Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+    void reset(const Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+
+    const Voxel* step(void);
+
+public:
+    const Dimension* dimension;
+    chunk_pos start_chunk;
+    glm::fvec3 start_fpos;
+    glm::fvec3 direction;
+
+    glm::fvec3 delta_dist;
+    glm::fvec3 side_dist;
+    voxel_pos vstep;
+
+    double distance;
+    voxel_pos vnormal;
+    voxel_pos vpos;
+};
+} // namespace world
diff --git a/src/game/shared/world/voxel.cc b/src/game/shared/world/voxel.cc
new file mode 100644
index 0000000..21fe62c
--- /dev/null
+++ b/src/game/shared/world/voxel.cc
@@ -0,0 +1,149 @@
+#include "shared/pch.hh"
+
+#include "shared/world/voxel.hh"
+
+#include "core/math/crc64.hh"
+
+#include "shared/world/dimension.hh"
+
+world::Voxel::Voxel(const Voxel& source, voxel_id id) noexcept : Voxel(source)
+{
+    m_id = id;
+}
+
+void world::Voxel::on_place(Dimension* dimension, const voxel_pos& vpos) const
+{
+    if(m_on_place) {
+        m_on_place(dimension, vpos);
+    }
+}
+
+void world::Voxel::on_remove(Dimension* dimension, const voxel_pos& vpos) const
+{
+    if(m_on_remove) {
+        m_on_remove(dimension, vpos);
+    }
+}
+
+void world::Voxel::on_tick(Dimension* dimension, const voxel_pos& vpos) const
+{
+    if(m_on_tick) {
+        m_on_tick(dimension, vpos);
+    }
+}
+
+std::size_t world::Voxel::get_random_texture_index(VoxelFace face, const voxel_pos& vpos) const
+{
+    const auto& textures = get_face_textures(face);
+
+    assert(textures.size());
+
+    std::uint64_t hash = 0U;
+    hash = math::crc64(&vpos.x, sizeof(vpos.x), hash);
+    hash = math::crc64(&vpos.y, sizeof(vpos.y), hash);
+    hash = math::crc64(&vpos.z, sizeof(vpos.z), hash);
+
+    return static_cast<std::size_t>(hash % textures.size());
+}
+
+void world::Voxel::set_face_cache(VoxelFace face, std::size_t offset, std::size_t plane)
+{
+    assert(face < m_cached_face_offsets.size());
+    assert(face < m_cached_face_planes.size());
+
+    m_cached_face_offsets[face] = offset;
+    m_cached_face_planes[face] = plane;
+}
+
+std::uint64_t world::Voxel::get_checksum(std::uint64_t combine) const
+{
+    combine = math::crc64(m_name.data(), m_name.size(), combine);
+    combine += static_cast<std::uint64_t>(m_shape);
+    combine += static_cast<std::uint64_t>(m_render_mode);
+    return combine;
+}
+
+world::VoxelBuilder::VoxelBuilder(std::string_view name)
+{
+    set_name(name);
+}
+
+void world::VoxelBuilder::set_on_place(VoxelOnPlaceFunc func) noexcept
+{
+    m_on_place = std::move(func);
+}
+
+void world::VoxelBuilder::set_on_remove(VoxelOnRemoveFunc func) noexcept
+{
+    m_on_remove = std::move(func);
+}
+
+void world::VoxelBuilder::set_on_tick(VoxelOnTickFunc func) noexcept
+{
+    m_on_tick = std::move(func);
+}
+
+void world::VoxelBuilder::set_name(std::string_view name) noexcept
+{
+    assert(name.size());
+
+    m_name = name;
+}
+
+void world::VoxelBuilder::set_render_mode(VoxelRender mode) noexcept
+{
+    m_render_mode = mode;
+}
+
+void world::VoxelBuilder::set_shape(VoxelShape shape) noexcept
+{
+    m_shape = shape;
+}
+
+void world::VoxelBuilder::set_animated(bool animated) noexcept
+{
+    m_animated = animated;
+}
+
+void world::VoxelBuilder::set_touch_type(VoxelTouch type) noexcept
+{
+    m_touch_type = type;
+}
+
+void world::VoxelBuilder::set_touch_values(const glm::fvec3& values) noexcept
+{
+    m_touch_values = values;
+}
+
+void world::VoxelBuilder::set_surface_material(VoxelMaterial material) noexcept
+{
+    m_surface_material = material;
+}
+
+void world::VoxelBuilder::set_collision(const math::AABBf& box) noexcept
+{
+    m_collision = box;
+}
+
+void world::VoxelBuilder::add_default_texture(std::string_view path)
+{
+    assert(path.size());
+
+    m_default_textures.emplace_back(path);
+}
+
+void world::VoxelBuilder::add_face_texture(VoxelFace face, std::string_view path)
+{
+    assert(face < m_face_textures.size());
+    assert(path.size());
+
+    m_face_textures[face].emplace_back(path);
+}
+
+std::unique_ptr<world::Voxel> world::VoxelBuilder::build(voxel_id id) const
+{
+    assert(m_name.size());
+    assert(id);
+
+    return std::make_unique<Voxel>(*this, id);
+}
diff --git a/src/game/shared/world/voxel.hh b/src/game/shared/world/voxel.hh
new file mode 100644
index 0000000..6013962
--- /dev/null
+++ b/src/game/shared/world/voxel.hh
@@ -0,0 +1,286 @@
+#pragma once
+
+#include "core/math/aabb.hh"
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace world
+{
+enum VoxelRender : unsigned int {
+    VRENDER_NONE = 0U, ///< The voxel is not rendered at all
+    VRENDER_OPAQUE,    ///< The voxel is fully opaque
+    VRENDER_BLEND,     ///< The voxel is blended (e.g. water, glass)
+};
+
+enum VoxelShape : unsigned int {
+    VSHAPE_CUBE = 0U, ///< Full cube shape
+    VSHAPE_CROSS,     ///< TODO: Cross shape
+    VSHAPE_MODEL,     ///< TODO: Custom model shape
+};
+
+enum VoxelFace : unsigned int {
+    VFACE_NORTH = 0U, ///< Positive Z face
+    VFACE_SOUTH,      ///< Negative Z face
+    VFACE_EAST,       ///< Positive X face
+    VFACE_WEST,       ///< Negative X face
+    VFACE_TOP,        ///< Positive Y face
+    VFACE_BOTTOM,     ///< Negative Y face
+    VFACE_CROSS_NWSE, ///< Diagonal cross face northwest-southeast
+    VFACE_CROSS_NESW, ///< Diagonal cross face northeast-southwest
+    VFACE_COUNT
+};
+
+enum VoxelTouch : unsigned int {
+    VTOUCH_NONE = 0xFFFFU,
+    VTOUCH_SOLID = 0U, ///< The entity is stopped in its tracks
+    VTOUCH_BOUNCE,     ///< The entity bounces back with some energy loss
+    VTOUCH_SINK,       ///< The entity phases/sinks through the voxel
+};
+
+enum VoxelMaterial : unsigned int {
+    VMAT_UNKNOWN = 0xFFFFU,
+    VMAT_DEFAULT = 0U,
+    VMAT_STONE,
+    VMAT_DIRT,
+    VMAT_GLASS,
+    VMAT_GRASS,
+    VMAT_GRAVEL,
+    VMAT_METAL,
+    VMAT_SAND,
+    VMAT_WOOD,
+    VMAT_SLOSH,
+    VMAT_COUNT
+};
+
+enum VoxelVisBits : unsigned int {
+    VVIS_NORTH = 1U << VFACE_NORTH, ///< Positive Z
+    VVIS_SOUTH = 1U << VFACE_SOUTH, ///< Negative Z
+    VVIS_EAST = 1U << VFACE_EAST,   ///< Positive X
+    VVIS_WEST = 1U << VFACE_WEST,   ///< Negative X
+    VVIS_UP = 1U << VFACE_TOP,      ///< Positive Y
+    VVIS_DOWN = 1U << VFACE_BOTTOM, ///< Negative Y
+};
+} // namespace world
+
+namespace world
+{
+using VoxelOnPlaceFunc = std::function<void(Dimension*, const voxel_pos&)>;
+using VoxelOnRemoveFunc = std::function<void(Dimension*, const voxel_pos&)>;
+using VoxelOnTickFunc = std::function<void(Dimension*, const voxel_pos&)>;
+} // namespace world
+
+namespace world
+{
+class Voxel {
+public:
+    Voxel(void) = default;
+    explicit Voxel(const Voxel& source, voxel_id id) noexcept;
+
+    void on_place(Dimension* dimension, const voxel_pos& vpos) const;
+    void on_remove(Dimension* dimension, const voxel_pos& vpos) const;
+    void on_tick(Dimension* dimension, const voxel_pos& vpos) const;
+
+    constexpr std::string_view get_name(void) const noexcept;
+    constexpr voxel_id get_id(void) const noexcept;
+
+    constexpr VoxelRender get_render_mode(void) const noexcept;
+    constexpr VoxelShape get_shape(void) const noexcept;
+    constexpr bool is_animated(void) const noexcept;
+
+    constexpr VoxelTouch get_touch_type(void) const noexcept;
+    constexpr const glm::fvec3& get_touch_values(void) const noexcept;
+    constexpr VoxelMaterial get_surface_material(void) const noexcept;
+
+    constexpr const math::AABBf& get_collision(void) const noexcept;
+
+    constexpr const std::vector<std::string>& get_default_textures(void) const noexcept;
+    constexpr const std::vector<std::string>& get_face_textures(VoxelFace face) const noexcept;
+    constexpr std::size_t get_cached_face_offset(VoxelFace face) const noexcept;
+    constexpr std::size_t get_cached_face_plane(VoxelFace face) const noexcept;
+
+    template<VoxelRender RenderMode>
+    constexpr bool is_render_mode(void) const noexcept;
+    template<VoxelShape Shape>
+    constexpr bool is_shape(void) const noexcept;
+    template<VoxelTouch TouchType>
+    constexpr bool is_touch_type(void) const noexcept;
+    template<VoxelMaterial Material>
+    constexpr bool is_surface_material(void) const noexcept;
+
+    /// Non-model voxel shapes support texture variation based on the
+    /// voxel position on the world; this method handles the math behind this
+    /// @param face The face of the voxel to get the texture index for
+    /// @param vpos The absolute voxel position to get the texture index for
+    /// @return The index of the texture to use for the given face at the given position
+    /// @remarks On client-side: plane[get_cached_face_plane][get_cached_face_offset + thisFunctionResult]
+    std::size_t get_random_texture_index(VoxelFace face, const voxel_pos& vpos) const;
+
+    /// Assign cached plane index and plane offset for a given face
+    /// @param face The face to assign the cache for
+    /// @param offset The offset to assign to the face
+    /// @param plane The plane index to assign to the face
+    void set_face_cache(VoxelFace face, std::size_t offset, std::size_t plane);
+
+    /// Calculate a checksum for the voxel's properties
+    /// @param combine An optional initial checksum to combine with
+    /// @return The calculated checksum
+    std::uint64_t get_checksum(std::uint64_t combine = 0U) const;
+
+protected:
+    std::string m_name;
+    voxel_id m_id { NULL_VOXEL_ID };
+
+    VoxelRender m_render_mode { VRENDER_OPAQUE };
+    VoxelShape m_shape { VSHAPE_CUBE };
+    bool m_animated { false };
+
+    VoxelTouch m_touch_type { VTOUCH_SOLID };
+    glm::fvec3 m_touch_values { 0.0f };
+    VoxelMaterial m_surface_material { VMAT_DEFAULT };
+
+    math::AABBf m_collision { { 0.0f, 0.0f, 0.0f }, { 1.0f, 1.0f, 1.0f } };
+
+    std::vector<std::string> m_default_textures;
+    std::array<std::vector<std::string>, VFACE_COUNT> m_face_textures;
+    std::array<std::size_t, VFACE_COUNT> m_cached_face_offsets;
+    std::array<std::size_t, VFACE_COUNT> m_cached_face_planes;
+
+    VoxelOnPlaceFunc m_on_place;
+    VoxelOnRemoveFunc m_on_remove;
+    VoxelOnTickFunc m_on_tick;
+};
+} // namespace world
+
+namespace world
+{
+class VoxelBuilder final : public Voxel {
+public:
+    VoxelBuilder(void) = default;
+    explicit VoxelBuilder(std::string_view name);
+
+    void set_on_place(VoxelOnPlaceFunc func) noexcept;
+    void set_on_remove(VoxelOnRemoveFunc func) noexcept;
+    void set_on_tick(VoxelOnTickFunc func) noexcept;
+
+    void set_name(std::string_view name) noexcept;
+
+    void set_render_mode(VoxelRender mode) noexcept;
+    void set_shape(VoxelShape shape) noexcept;
+    void set_animated(bool animated) noexcept;
+
+    void set_touch_type(VoxelTouch type) noexcept;
+    void set_touch_values(const glm::fvec3& values) noexcept;
+    void set_surface_material(VoxelMaterial material) noexcept;
+
+    void set_collision(const math::AABBf& box) noexcept;
+
+    void add_default_texture(std::string_view path);
+    void add_face_texture(VoxelFace face, std::string_view path);
+
+    std::unique_ptr<Voxel> build(voxel_id id) const;
+};
+} // namespace world
+
+constexpr std::string_view world::Voxel::get_name(void) const noexcept
+{
+    return m_name;
+}
+
+constexpr voxel_id world::Voxel::get_id(void) const noexcept
+{
+    return m_id;
+}
+
+constexpr world::VoxelRender world::Voxel::get_render_mode(void) const noexcept
+{
+    return m_render_mode;
+}
+
+constexpr world::VoxelShape world::Voxel::get_shape(void) const noexcept
+{
+    return m_shape;
+}
+
+constexpr bool world::Voxel::is_animated(void) const noexcept
+{
+    return m_animated;
+}
+
+constexpr world::VoxelTouch world::Voxel::get_touch_type(void) const noexcept
+{
+    return m_touch_type;
+}
+
+constexpr const glm::fvec3& world::Voxel::get_touch_values(void) const noexcept
+{
+    return m_touch_values;
+}
+
+constexpr world::VoxelMaterial world::Voxel::get_surface_material(void) const noexcept
+{
+    return m_surface_material;
+}
+
+constexpr const math::AABBf& world::Voxel::get_collision(void) const noexcept
+{
+    return m_collision;
+}
+
+constexpr const std::vector<std::string>& world::Voxel::get_default_textures(void) const noexcept
+{
+    return m_default_textures;
+}
+
+constexpr const std::vector<std::string>& world::Voxel::get_face_textures(VoxelFace face) const noexcept
+{
+    assert(face <= m_face_textures.size());
+
+    if(m_face_textures[face].empty()) {
+        return m_default_textures;
+    }
+
+    return m_face_textures[face];
+}
+
+constexpr std::size_t world::Voxel::get_cached_face_offset(VoxelFace face) const noexcept
+{
+    assert(face <= m_cached_face_offsets.size());
+
+    return m_cached_face_offsets[face];
+}
+
+constexpr std::size_t world::Voxel::get_cached_face_plane(VoxelFace face) const noexcept
+{
+    assert(face <= m_cached_face_planes.size());
+
+    return m_cached_face_planes[face];
+}
+
+template<world::VoxelRender RenderMode>
+constexpr bool world::Voxel::is_render_mode(void) const noexcept
+{
+    return m_render_mode == RenderMode;
+}
+
+template<world::VoxelShape Shape>
+constexpr bool world::Voxel::is_shape(void) const noexcept
+{
+    return m_shape == Shape;
+}
+
+template<world::VoxelTouch TouchType>
+constexpr bool world::Voxel::is_touch_type(void) const noexcept
+{
+    return m_touch_type == TouchType;
+}
+
+template<world::VoxelMaterial Material>
+constexpr bool world::Voxel::is_surface_material(void) const noexcept
+{
+    return m_surface_material == Material;
+}
diff --git a/src/game/shared/world/voxel_registry.cc b/src/game/shared/world/voxel_registry.cc
new file mode 100644
index 0000000..fae83fa
--- /dev/null
+++ b/src/game/shared/world/voxel_registry.cc
@@ -0,0 +1,64 @@
+#include "shared/pch.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+static std::uint64_t registry_checksum = 0U;
+emhash8::HashMap<std::string, voxel_id> world::voxel_registry::names;
+std::vector<std::unique_ptr<world::Voxel>> world::voxel_registry::voxels;
+
+static void recalculate_checksum(void)
+{
+    registry_checksum = 0U;
+
+    for(const auto& voxel : world::voxel_registry::voxels) {
+        registry_checksum = voxel->get_checksum(registry_checksum);
+    }
+}
+
+world::Voxel* world::voxel_registry::register_voxel(const VoxelBuilder& builder)
+{
+    assert(builder.get_name().size());
+    assert(nullptr == find(builder.get_name()));
+
+    const auto id = static_cast<voxel_id>(1 + voxels.size());
+
+    std::unique_ptr<Voxel> voxel(builder.build(id));
+    names.emplace(std::string(builder.get_name()), id);
+    voxels.push_back(std::move(voxel));
+
+    recalculate_checksum();
+
+    return voxels.back().get();
+}
+
+world::Voxel* world::voxel_registry::find(std::string_view name)
+{
+    const auto it = names.find(std::string(name));
+
+    if(it == names.end()) {
+        return nullptr;
+    }
+
+    return voxels[it->second - 1].get();
+}
+
+world::Voxel* world::voxel_registry::find(voxel_id id)
+{
+    if(id == NULL_VOXEL_ID || id > voxels.size()) {
+        return nullptr;
+    }
+
+    return voxels[id - 1].get();
+}
+
+void world::voxel_registry::purge(void)
+{
+    registry_checksum = 0U;
+    voxels.clear();
+    names.clear();
+}
+
+std::uint64_t world::voxel_registry::get_checksum(void)
+{
+    return registry_checksum;
+}
diff --git a/src/game/shared/world/voxel_registry.hh b/src/game/shared/world/voxel_registry.hh
new file mode 100644
index 0000000..a1e0eee
--- /dev/null
+++ b/src/game/shared/world/voxel_registry.hh
@@ -0,0 +1,26 @@
+#pragma once
+
+#include "shared/world/voxel.hh"
+
+namespace world::voxel_registry
+{
+extern emhash8::HashMap<std::string, voxel_id> names;
+extern std::vector<std::unique_ptr<Voxel>> voxels;
+} // namespace world::voxel_registry
+
+namespace world::voxel_registry
+{
+Voxel* register_voxel(const VoxelBuilder& builder);
+Voxel* find(std::string_view name);
+Voxel* find(voxel_id id);
+} // namespace world::voxel_registry
+
+namespace world::voxel_registry
+{
+void purge(void);
+} // namespace world::voxel_registry
+
+namespace world::voxel_registry
+{
+std::uint64_t get_checksum(void);
+} // namespace world::voxel_registry
diff --git a/src/game/shared/world/voxel_storage.cc b/src/game/shared/world/voxel_storage.cc
new file mode 100644
index 0000000..68e261c
--- /dev/null
+++ b/src/game/shared/world/voxel_storage.cc
@@ -0,0 +1,48 @@
+#include "shared/pch.hh"
+
+#include "shared/world/voxel_storage.hh"
+
+#include "core/io/buffer.hh"
+
+void world::VoxelStorage::serialize(io::WriteBuffer& buffer) const
+{
+    auto bound = mz_compressBound(sizeof(VoxelStorage));
+    auto zdata = std::vector<unsigned char>(bound);
+
+    VoxelStorage net_storage;
+
+    for(std::size_t i = 0; i < CHUNK_VOLUME; ++i) {
+        // Convert voxel indices into network byte order;
+        // We're going to compress them but we still want
+        // the order to be consistent across all the platforms
+        net_storage[i] = ENET_HOST_TO_NET_16(at(i));
+    }
+
+    mz_compress(zdata.data(), &bound, reinterpret_cast<unsigned char*>(net_storage.data()), sizeof(VoxelStorage));
+
+    buffer.write<std::uint64_t>(bound);
+
+    // Write all the compressed data into the buffer
+    for(std::size_t i = 0; i < bound; buffer.write<std::uint8_t>(zdata[i++])) {
+        // empty
+    }
+}
+
+void world::VoxelStorage::deserialize(io::ReadBuffer& buffer)
+{
+    auto size = static_cast<mz_ulong>(sizeof(VoxelStorage));
+    auto bound = static_cast<mz_ulong>(buffer.read<std::uint64_t>());
+    auto zdata = std::vector<unsigned char>(bound);
+
+    // Read all the compressed data from the buffer
+    for(std::size_t i = 0; i < bound; zdata[i++] = buffer.read<std::uint8_t>()) {
+        // empty
+    }
+
+    mz_uncompress(reinterpret_cast<unsigned char*>(data()), &size, zdata.data(), bound);
+
+    for(std::size_t i = 0; i < CHUNK_VOLUME; ++i) {
+        // Convert voxel indices back into the host byte order
+        at(i) = ENET_NET_TO_HOST_16(at(i));
+    }
+}
diff --git a/src/game/shared/world/voxel_storage.hh b/src/game/shared/world/voxel_storage.hh
new file mode 100644
index 0000000..ac7f03d
--- /dev/null
+++ b/src/game/shared/world/voxel_storage.hh
@@ -0,0 +1,20 @@
+#pragma once
+
+#include "shared/const.hh"
+#include "shared/types.hh"
+
+namespace io
+{
+class ReadBuffer;
+class WriteBuffer;
+} // namespace io
+
+namespace world
+{
+class VoxelStorage final : public std::array<voxel_id, CHUNK_VOLUME> {
+public:
+    using std::array<voxel_id, CHUNK_VOLUME>::array;
+    void serialize(io::WriteBuffer& buffer) const;
+    void deserialize(io::ReadBuffer& buffer);
+};
+} // namespace world