I hyper-focued on refactoring again

- I put a cool-sounding "we are number one" remix on repeat and straight
  up grinded the entire repository to a better state until 03:09 AM. I
  guess I have something wrong in my brain that makes me do this shit

38 files changed, 3949 insertions, 0 deletions

diff --git a/game/client/gui/CMakeLists.txt b/game/client/gui/CMakeLists.txt
new file mode 100644
index 0000000..46d64a1
--- /dev/null
+++ b/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/game/client/gui/background.cc b/game/client/gui/background.cc
new file mode 100644
index 0000000..0c38283
--- /dev/null
+++ b/game/client/gui/background.cc
@@ -0,0 +1,38 @@
+#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/game/client/gui/background.hh b/game/client/gui/background.hh
new file mode 100644
index 0000000..1974c34
--- /dev/null
+++ b/game/client/gui/background.hh
@@ -0,0 +1,12 @@
+#ifndef CLIENT_BACKGROUND_HH
+#define CLIENT_BACKGROUND_HH 1
+#pragma once
+
+namespace gui::background
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+} // namespace gui::background
+
+#endif // CLIENT_BACKGROUND_HH
diff --git a/game/client/gui/bother.cc b/game/client/gui/bother.cc
new file mode 100644
index 0000000..3a35438
--- /dev/null
+++ b/game/client/gui/bother.cc
@@ -0,0 +1,163 @@
+#include "client/pch.hh"
+
+#include "client/gui/bother.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.protocol_version = packet.version;
+    event.num_players = packet.num_players;
+    event.max_players = packet.max_players;
+    event.motd = packet.motd;
+    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.version = protocol::VERSION;
+            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, const char* 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 = std::string(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/game/client/gui/bother.hh b/game/client/gui/bother.hh
new file mode 100644
index 0000000..c10bf8a
--- /dev/null
+++ b/game/client/gui/bother.hh
@@ -0,0 +1,26 @@
+#ifndef CLIENT_BOTHER_HH
+#define CLIENT_BOTHER_HH 1
+#pragma once
+
+namespace gui
+{
+struct BotherResponseEvent final {
+    unsigned int identity;
+    bool is_server_unreachable;
+    std::uint32_t protocol_version;
+    std::uint16_t num_players;
+    std::uint16_t max_players;
+    std::string motd;
+};
+} // namespace gui
+
+namespace gui::bother
+{
+void init(void);
+void shutdown(void);
+void update_late(void);
+void ping(unsigned int identity, const char* host, std::uint16_t port);
+void cancel(unsigned int identity);
+} // namespace gui::bother
+
+#endif // CLIENT_BOTHER_HH
diff --git a/game/client/gui/chat.cc b/game/client/gui/chat.cc
new file mode 100644
index 0000000..3cf0958
--- /dev/null
+++ b/game/client/gui/chat.cc
@@ -0,0 +1,263 @@
+#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/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_chat);
+
+    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 * font->FontSize - 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-6 * 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));
+
+            draw_list->AddRectFilled(rect_pos, rect_end, rect_col);
+            draw_list->AddText(
+                font, font->FontSize, text_pos, text_col, it->text.c_str(), it->text.c_str() + it->text.size(), 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/game/client/gui/chat.hh b/game/client/gui/chat.hh
new file mode 100644
index 0000000..b56681e
--- /dev/null
+++ b/game/client/gui/chat.hh
@@ -0,0 +1,21 @@
+#ifndef CLIENT_CHAT_HH
+#define CLIENT_CHAT_HH 1
+#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
+
+#endif // CLIENT_CHAT_HH
diff --git a/game/client/gui/crosshair.cc b/game/client/gui/crosshair.cc
new file mode 100644
index 0000000..729ede9
--- /dev/null
+++ b/game/client/gui/crosshair.cc
@@ -0,0 +1,42 @@
+#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 = math::max<int>(texture->size.x, globals::gui_scale * texture->size.x / 2);
+    auto scaled_height = math::max<int>(texture->size.y, globals::gui_scale * texture->size.y / 2);
+    auto start = ImVec2(
+        static_cast<int>(0.5f * viewport->Size.x) - (scaled_width / 2), static_cast<int>(0.5f * viewport->Size.y) - (scaled_height / 2));
+    auto end = ImVec2(start.x + scaled_width, start.y + scaled_height);
+    draw_list->AddImage(texture->handle, start, end);
+}
diff --git a/game/client/gui/crosshair.hh b/game/client/gui/crosshair.hh
new file mode 100644
index 0000000..d29a661
--- /dev/null
+++ b/game/client/gui/crosshair.hh
@@ -0,0 +1,12 @@
+#ifndef CLIENT_CROSSHAIR_HH
+#define CLIENT_CROSSHAIR_HH 1
+#pragma once
+
+namespace gui::crosshair
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+} // namespace gui::crosshair
+
+#endif // CLIENT_CROSSHAIR_HH
diff --git a/game/client/gui/direct_connection.cc b/game/client/gui/direct_connection.cc
new file mode 100644
index 0000000..8a09e48
--- /dev/null
+++ b/game/client/gui/direct_connection.cc
@@ -0,0 +1,141 @@
+#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 = math::clamp<std::uint16_t>(strtoul(parts[1].c_str(), nullptr, 10), 1024, 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/game/client/gui/direct_connection.hh b/game/client/gui/direct_connection.hh
new file mode 100644
index 0000000..7331843
--- /dev/null
+++ b/game/client/gui/direct_connection.hh
@@ -0,0 +1,11 @@
+#ifndef CLIENT_DIRECT_CONNECTION_HH
+#define CLIENT_DIRECT_CONNECTION_HH 1
+#pragma once
+
+namespace gui::direct_connection
+{
+void init(void);
+void layout(void);
+} // namespace gui::direct_connection
+
+#endif // CLIENT_DIRECT_CONNECTION_HH
diff --git a/game/client/gui/gui_screen.hh b/game/client/gui/gui_screen.hh
new file mode 100644
index 0000000..b36e6b2
--- /dev/null
+++ b/game/client/gui/gui_screen.hh
@@ -0,0 +1,14 @@
+#ifndef CLIENT_GUI_SCREEN_HH
+#define CLIENT_GUI_SCREEN_HH 1
+#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;
+
+#endif // CLIENT_GUI_SCREEN_HH
diff --git a/game/client/gui/hotbar.cc b/game/client/gui/hotbar.cc
new file mode 100644
index 0000000..a7c3c62
--- /dev/null
+++ b/game/client/gui/hotbar.cc
@@ -0,0 +1,179 @@
+#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;
+item_id gui::hotbar::slots[HOTBAR_SIZE];
+
+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)
+{
+    if(gui::hotbar::slots[gui::hotbar::active_slot] == NULL_ITEM_ID) {
+        gui::status_lines::unset(gui::STATUS_HOTBAR);
+        return;
+    }
+
+    if(auto info = world::item_registry::find(gui::hotbar::slots[gui::hotbar::active_slot])) {
+        gui::status_lines::set(gui::STATUS_HOTBAR, info->name, ImVec4(1.0f, 1.0f, 1.0f, 1.0f), 5.0f);
+        return;
+    }
+}
+
+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) {
+        const auto info = world::item_registry::find(gui::hotbar::slots[i]);
+
+        if((info == nullptr) || (info->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(info->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/game/client/gui/hotbar.hh b/game/client/gui/hotbar.hh
new file mode 100644
index 0000000..4712ee5
--- /dev/null
+++ b/game/client/gui/hotbar.hh
@@ -0,0 +1,31 @@
+#ifndef CLIENT_HOTBAR_HH
+#define CLIENT_HOTBAR_HH 1
+#pragma once
+
+#include "shared/types.hh"
+
+// TODO: design an inventory system and an item
+// registry and integrate the hotbar into that system
+
+constexpr static unsigned int HOTBAR_SIZE = 9U;
+
+namespace gui::hotbar
+{
+extern unsigned int active_slot;
+extern item_id slots[HOTBAR_SIZE];
+} // 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
+
+#endif // CLIENT_HOTBAR_HH
diff --git a/game/client/gui/imdraw_ext.cc b/game/client/gui/imdraw_ext.cc
new file mode 100644
index 0000000..e6db148
--- /dev/null
+++ b/game/client/gui/imdraw_ext.cc
@@ -0,0 +1,13 @@
+#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)
+{
+    const auto shadow_position = ImVec2(position.x + 0.5f * globals::gui_scale, position.y + 0.5f * globals::gui_scale);
+    draw_list->AddText(font, font->FontSize, shadow_position, shadow_color, text.c_str(), text.c_str() + text.size());
+    draw_list->AddText(font, font->FontSize, position, text_color, text.c_str(), text.c_str() + text.size());
+}
diff --git a/game/client/gui/imdraw_ext.hh b/game/client/gui/imdraw_ext.hh
new file mode 100644
index 0000000..7f0abfb
--- /dev/null
+++ b/game/client/gui/imdraw_ext.hh
@@ -0,0 +1,11 @@
+#ifndef CLIENT_IMDRAW_EXT_HH
+#define CLIENT_IMDRAW_EXT_HH 1
+#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);
+} // namespace gui::imdraw_ext
+
+#endif // CLIENT_IMDRAW_EXT_HH
diff --git a/game/client/gui/language.cc b/game/client/gui/language.cc
new file mode 100644
index 0000000..04906b4
--- /dev/null
+++ b/game/client/gui/language.cc
@@ -0,0 +1,198 @@
+#include "client/pch.hh"
+
+#include "client/gui/language.hh"
+
+#include "core/config/string.hh"
+#include "core/io/config_map.hh"
+
+#include "client/gui/settings.hh"
+
+#include "client/globals.hh"
+
+constexpr static const char* 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 const char* 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(MANIFEST_PATH);
+
+    if(file == nullptr) {
+        spdlog::critical("language: {}: {}", MANIFEST_PATH, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
+        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());
+
+    if(user_language != ietf_map.cend()) {
+        gui::language::set(user_language->second);
+        return;
+    }
+
+    auto fallback = ietf_map.find(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, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
+            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(const char* ietf)
+{
+    const auto it = ietf_map.find(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();
+}
+
+const char* gui::language::resolve(const char* key)
+{
+    const auto it = language_map.find(key);
+    if(it != language_map.cend()) {
+        return it->second.c_str();
+    } else {
+        return key;
+    }
+}
+
+std::string gui::language::resolve_gui(const char* 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/game/client/gui/language.hh b/game/client/gui/language.hh
new file mode 100644
index 0000000..d54208a
--- /dev/null
+++ b/game/client/gui/language.hh
@@ -0,0 +1,46 @@
+#ifndef CLIENT_LANGUAGE_HH
+#define CLIENT_LANGUAGE_HH 1
+#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(const char* ietf);
+LanguageIterator cbegin(void);
+LanguageIterator cend(void);
+} // namespace gui::language
+
+namespace gui::language
+{
+const char* resolve(const char* key);
+std::string resolve_gui(const char* key);
+} // namespace gui::language
+
+#endif // CLIENT_LANGUAGE_HH
diff --git a/game/client/gui/main_menu.cc b/game/client/gui/main_menu.cc
new file mode 100644
index 0000000..7af1f10
--- /dev/null
+++ b/game/client/gui/main_menu.cc
@@ -0,0 +1,165 @@
+#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 = math::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_debug);
+            ImGui::SetCursorScreenPos(ImVec2(padding.x + spacing.x, window_size.y - globals::font_debug->FontSize - padding.y - spacing.y));
+            ImGui::Text("Voxelius %s", project_version_string);
+            ImGui::PopFont();
+        }
+
+        ImGui::PopStyleVar();
+    }
+
+    ImGui::End();
+}
diff --git a/game/client/gui/main_menu.hh b/game/client/gui/main_menu.hh
new file mode 100644
index 0000000..c93e284
--- /dev/null
+++ b/game/client/gui/main_menu.hh
@@ -0,0 +1,12 @@
+#ifndef CLIENT_MAIN_MENU_HH
+#define CLIENT_MAIN_MENU_HH 1
+#pragma once
+
+namespace gui::main_menu
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+} // namespace gui::main_menu
+
+#endif // CLIENT_MAIN_MENU_HH
diff --git a/game/client/gui/message_box.cc b/game/client/gui/message_box.cc
new file mode 100644
index 0000000..615281b
--- /dev/null
+++ b/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(const char* title)
+{
+    str_title = gui::language::resolve(title);
+}
+
+void gui::message_box::set_subtitle(const char* subtitle)
+{
+    str_subtitle = gui::language::resolve(subtitle);
+}
+
+void gui::message_box::add_button(const char* 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/game/client/gui/message_box.hh b/game/client/gui/message_box.hh
new file mode 100644
index 0000000..c5545fc
--- /dev/null
+++ b/game/client/gui/message_box.hh
@@ -0,0 +1,24 @@
+#ifndef CLIENT_MESSAGE_BOX_HH
+#define CLIENT_MESSAGE_BOX_HH 1
+#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(const char* title);
+void set_subtitle(const char* subtitle);
+void add_button(const char* text, const message_box_action& action);
+} // namespace gui::message_box
+
+#endif // CLIENT_MESSAGE_BOX_HH
diff --git a/game/client/gui/metrics.cc b/game/client/gui/metrics.cc
new file mode 100644
index 0000000..350208c
--- /dev/null
+++ b/game/client/gui/metrics.cc
@@ -0,0 +1,100 @@
+#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 position = ImVec2(8.0f, 8.0f);
+    auto y_step = 1.5f * globals::font_debug->FontSize;
+
+    // Draw version
+    auto version_line = std::format("Voxelius {}", project_version_string);
+    gui::imdraw_ext::text_shadow(version_line, position, text_color, shadow_color, globals::font_debug, draw_list);
+    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_debug, draw_list);
+    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_debug, draw_list);
+    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_debug, draw_list);
+    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_debug, draw_list);
+    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_debug, draw_list);
+    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_debug, draw_list);
+    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_debug, draw_list);
+    position.y += y_step;
+}
diff --git a/game/client/gui/metrics.hh b/game/client/gui/metrics.hh
new file mode 100644
index 0000000..57e1108
--- /dev/null
+++ b/game/client/gui/metrics.hh
@@ -0,0 +1,11 @@
+#ifndef CLIENT_METRICS_HH
+#define CLIENT_METRICS_HH 1
+#pragma once
+
+namespace gui::metrics
+{
+void init(void);
+void layout(void);
+} // namespace gui::metrics
+
+#endif // CLIENT_METRICS_HH
diff --git a/game/client/gui/play_menu.cc b/game/client/gui/play_menu.cc
new file mode 100644
index 0000000..922dd4e
--- /dev/null
+++ b/game/client/gui/play_menu.cc
@@ -0,0 +1,550 @@
+#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 "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 const char* DEFAULT_SERVER_NAME = "Voxelius Server";
+constexpr static const char* SERVERS_TXT = "servers.txt";
+constexpr static const char* WARNING_TOAST = "[!]";
+
+constexpr static std::size_t MAX_SERVER_ITEM_NAME = 24;
+
+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::uint32_t protocol_version;
+    std::uint16_t num_players;
+    std::uint16_t max_players;
+    std::string motd;
+
+    // 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 str_outdated_client;
+static std::string str_outdated_server;
+
+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 = math::clamp<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->protocol_version = protocol::VERSION;
+    item->max_players = UINT16_MAX;
+    item->num_players = UINT16_MAX;
+    item->identity = next_identity;
+    item->status = item_status::UNKNOWN;
+
+    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");
+
+    str_outdated_client = gui::language::resolve("play_menu.outdated_client");
+    str_outdated_server = gui::language::resolve("play_menu.outdated_server");
+}
+
+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->protocol_version = 0U;
+                item->num_players = UINT16_MAX;
+                item->max_players = UINT16_MAX;
+                item->motd = str_status_fail;
+                item->status = item_status::FAILURE;
+            } else {
+                item->protocol_version = event.protocol_version;
+                item->num_players = event.num_players;
+                item->max_players = event.max_players;
+                item->motd = event.motd;
+                item->status = item_status::REACHED;
+            }
+
+            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, 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_width = ImGui::CalcTextSize(stats.c_str(), stats.c_str() + stats.size()).x;
+        auto stats_pos = ImVec2(cursor.x + item_width - stats_width - padding.x, cursor.y + padding.y);
+        draw_list->AddText(stats_pos, ImGui::GetColorU32(ImGuiCol_TextDisabled), stats.c_str(), stats.c_str() + stats.size());
+
+        if(item->protocol_version != protocol::VERSION) {
+            auto warning_size = ImGui::CalcTextSize(WARNING_TOAST);
+            auto warning_pos = ImVec2(stats_pos.x - warning_size.x - padding.x - 4.0f * globals::gui_scale, cursor.y + padding.y);
+            auto warning_end = ImVec2(warning_pos.x + warning_size.x, warning_pos.y + warning_size.y);
+            draw_list->AddText(warning_pos, ImGui::GetColorU32(ImGuiCol_DragDropTarget), WARNING_TOAST);
+
+            if(ImGui::IsMouseHoveringRect(warning_pos, warning_end)) {
+                ImGui::BeginTooltip();
+
+                if(item->protocol_version < protocol::VERSION) {
+                    ImGui::TextUnformatted(str_outdated_server.c_str(), str_outdated_server.c_str() + str_outdated_server.size());
+                } else {
+                    ImGui::TextUnformatted(str_outdated_client.c_str(), str_outdated_client.c_str() + str_outdated_client.size());
+                }
+
+                ImGui::EndTooltip();
+            }
+        }
+    }
+
+    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(SERVERS_TXT)) {
+        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->protocol_version = protocol::VERSION;
+            item->max_players = UINT16_MAX;
+            item->num_players = UINT16_MAX;
+            item->identity = next_identity;
+            item->status = item_status::UNKNOWN;
+
+            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(SERVERS_TXT)) {
+        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();
+            }
+
+            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/game/client/gui/play_menu.hh b/game/client/gui/play_menu.hh
new file mode 100644
index 0000000..f63d27e
--- /dev/null
+++ b/game/client/gui/play_menu.hh
@@ -0,0 +1,13 @@
+#ifndef CLIENT_PLAY_MENU_HH
+#define CLIENT_PLAY_MENU_HH 1
+#pragma once
+
+namespace gui::play_menu
+{
+void init(void);
+void shutdown(void);
+void layout(void);
+void update_late(void);
+} // namespace gui::play_menu
+
+#endif // CLIENT_PLAY_MENU_HH
diff --git a/game/client/gui/progress_bar.cc b/game/client/gui/progress_bar.cc
new file mode 100644
index 0000000..2bfb69e
--- /dev/null
+++ b/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 * 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::sin(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 = math::lerp(background.x, foreground.x, modifier);
+            color.y = math::lerp(background.y, foreground.y, modifier);
+            color.z = math::lerp(background.z, foreground.z, modifier);
+            color.w = math::lerp(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(const char* title)
+{
+    str_title = gui::language::resolve(title);
+}
+
+void gui::progress_bar::set_button(const char* text, const progress_bar_action& action)
+{
+    str_button = std::format("{}###ProgressBar_Button", gui::language::resolve(text));
+    button_action = action;
+}
diff --git a/game/client/gui/progress_bar.hh b/game/client/gui/progress_bar.hh
new file mode 100644
index 0000000..3765543
--- /dev/null
+++ b/game/client/gui/progress_bar.hh
@@ -0,0 +1,23 @@
+#ifndef CLIENT_PROGRESS_BAR_HH
+#define CLIENT_PROGRESS_BAR_HH 1
+#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(const char* title);
+void set_button(const char* text, const progress_bar_action& action);
+} // namespace gui::progress_bar
+
+#endif // CLIENT_PROGRESS_BAR_HH
diff --git a/game/client/gui/scoreboard.cc b/game/client/gui/scoreboard.cc
new file mode 100644
index 0000000..85a982f
--- /dev/null
+++ b/game/client/gui/scoreboard.cc
@@ -0,0 +1,101 @@
+#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_chat);
+
+        const auto& padding = ImGui::GetStyle().FramePadding;
+        const auto& spacing = ImGui::GetStyle().ItemSpacing;
+        auto font = globals::font_chat;
+
+        // 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 = math::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 + font->FontSize;
+
+        // 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, font->FontSize, text_pos, text_col, usernames[i].c_str(), usernames[i].c_str() + usernames[i].size());
+        }
+
+        ImGui::PopFont();
+        ImGui::End();
+    }
+}
diff --git a/game/client/gui/scoreboard.hh b/game/client/gui/scoreboard.hh
new file mode 100644
index 0000000..af77ae2
--- /dev/null
+++ b/game/client/gui/scoreboard.hh
@@ -0,0 +1,11 @@
+#ifndef CLIENT_SCOREBOARD_HH
+#define CLIENT_SCOREBOARD_HH 1
+#pragma once
+
+namespace gui::scoreboard
+{
+void init(void);
+void layout(void);
+} // namespace gui::scoreboard
+
+#endif // CLIENT_SCOREBOARD_HH
diff --git a/game/client/gui/settings.cc b/game/client/gui/settings.cc
new file mode 100644
index 0000000..5c6b5eb
--- /dev/null
+++ b/game/client/gui/settings.cc
@@ -0,0 +1,1060 @@
+#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();
+
+    if(allow_whitespace) {
+        flags = ImGuiInputTextFlags_AllowTabInput;
+    } else {
+        flags = 0;
+    }
+
+    if(ImGui::InputText(wid.c_str(), &current_value, flags)) {
+        value->set(current_value.c_str());
+    }
+
+    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, const char* 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, const char* 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, const char* name, bool tooltip, const char* format)
+{
+    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->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, const char* 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, const char* 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, const char* 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, const char* name, bool tooltip, const char* format)
+{
+    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 = format;
+    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, const char* 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, const char* 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, const char* 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, const char* 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, const char* 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, const char* 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, const char* 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/game/client/gui/settings.hh b/game/client/gui/settings.hh
new file mode 100644
index 0000000..15aa6a7
--- /dev/null
+++ b/game/client/gui/settings.hh
@@ -0,0 +1,93 @@
+#ifndef CLIENT_SETTINGS_HH
+#define CLIENT_SETTINGS_HH 1
+#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, const char* name, bool tooltip);
+} // namespace settings
+
+namespace settings
+{
+void add_input(int priority, config::Int& value, settings_location location, const char* name, bool tooltip);
+void add_input(int priority, config::Float& value, settings_location location, const char* name, bool tooltip, const char* format = "%.3f");
+void add_input(int priority, config::Unsigned& value, settings_location location, const char* name, bool tooltip);
+void add_input(int priority, config::String& value, settings_location location, const char* name, bool tooltip, bool allow_whitespace);
+} // namespace settings
+
+namespace settings
+{
+void add_slider(int priority, config::Int& value, settings_location location, const char* name, bool tooltip);
+void add_slider(
+    int priority, config::Float& value, settings_location location, const char* name, bool tooltip, const char* format = "%.3f");
+void add_slider(int priority, config::Unsigned& value, settings_location location, const char* name, bool tooltip);
+} // namespace settings
+
+namespace settings
+{
+void add_stepper(int priority, config::Int& value, settings_location location, const char* name, bool tooltip);
+void add_stepper(int priority, config::Unsigned& value, settings_location location, const char* name, bool tooltip);
+} // namespace settings
+
+namespace settings
+{
+void add_keybind(int priority, config::KeyBind& value, settings_location location, const char* name);
+} // namespace settings
+
+namespace settings
+{
+void add_gamepad_axis(int priority, config::GamepadAxis& value, settings_location location, const char* name);
+void add_gamepad_button(int priority, config::GamepadButton& value, settings_location location, const char* name);
+} // namespace settings
+
+namespace settings
+{
+void add_language_select(int priority, settings_location location, const char* name);
+} // namespace settings
+
+#endif // CLIENT_SETTINGS_HH
diff --git a/game/client/gui/splash.cc b/game/client/gui/splash.cc
new file mode 100644
index 0000000..d6615ec
--- /dev/null
+++ b/game/client/gui/splash.cc
@@ -0,0 +1,172 @@
+#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 const char* 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::random_device randev;
+    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 = math::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_chat);
+            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/game/client/gui/splash.hh b/game/client/gui/splash.hh
new file mode 100644
index 0000000..7a032ad
--- /dev/null
+++ b/game/client/gui/splash.hh
@@ -0,0 +1,12 @@
+#ifndef CLIENT_SPLASH_HH
+#define CLIENT_SPLASH_HH 1
+#pragma once
+
+namespace gui::client_splash
+{
+void init(void);
+void init_late(void);
+void render(void);
+} // namespace gui::client_splash
+
+#endif // CLIENT_SPLASH_HH
diff --git a/game/client/gui/status_lines.cc b/game/client/gui/status_lines.cc
new file mode 100644
index 0000000..054f971
--- /dev/null
+++ b/game/client/gui/status_lines.cc
@@ -0,0 +1,80 @@
+#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 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_debug;
+    line_fonts[STATUS_HOTBAR] = globals::font_chat;
+
+    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(font->FontSize, 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);
+    }
+}
+
+void gui::status_lines::set(unsigned int line, const std::string& 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] = std::string(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/game/client/gui/status_lines.hh b/game/client/gui/status_lines.hh
new file mode 100644
index 0000000..907cdfc
--- /dev/null
+++ b/game/client/gui/status_lines.hh
@@ -0,0 +1,25 @@
+#ifndef CLIENT_STATUS_LINES_HH
+#define CLIENT_STATUS_LINES_HH 1
+#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, const std::string& text, const ImVec4& color, float fadeout);
+void unset(unsigned int line);
+} // namespace gui::status_lines
+
+#endif // CLIENT_STATUS_LINES_HH
diff --git a/game/client/gui/window_title.cc b/game/client/gui/window_title.cc
new file mode 100644
index 0000000..5a5aca2
--- /dev/null
+++ b/game/client/gui/window_title.cc
@@ -0,0 +1,22 @@
+#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)
+{
+    std::string title;
+
+    if(globals::sound_ctx && globals::sound_dev) {
+        title = std::format("Voxelius {}: {}", project_version_string, splash::get());
+    } else {
+        title = std::format("Voxelius {}: {} [NOSOUND]", project_version_string, splash::get());
+    }
+
+    glfwSetWindowTitle(globals::window, title.c_str());
+}
diff --git a/game/client/gui/window_title.hh b/game/client/gui/window_title.hh
new file mode 100644
index 0000000..a6fe4ec
--- /dev/null
+++ b/game/client/gui/window_title.hh
@@ -0,0 +1,10 @@
+#ifndef CLIENT_WINDOW_TITLE_HH
+#define CLIENT_WINDOW_TITLE_HH 1
+#pragma once
+
+namespace gui::window_title
+{
+void update(void);
+} // namespace gui::window_title
+
+#endif // CLIENT_WINDOW_TITLE_HH