diff --git a/desktop_version/CMakeLists.txt b/desktop_version/CMakeLists.txt
index b2dfbf8d..41ec3396 100644
--- a/desktop_version/CMakeLists.txt
+++ b/desktop_version/CMakeLists.txt
@@ -84,6 +84,7 @@ set(VVV_SRC
     src/Input.cpp
     src/KeyPoll.cpp
     src/Labclass.cpp
+    src/LevelDebugger.cpp
     src/Localization.cpp
     src/LocalizationMaint.cpp
     src/LocalizationStorage.cpp
diff --git a/desktop_version/src/Game.cpp b/desktop_version/src/Game.cpp
index 552cb059..df506186 100644
--- a/desktop_version/src/Game.cpp
+++ b/desktop_version/src/Game.cpp
@@ -17,6 +17,7 @@
 #include "Font.h"
 #include "GlitchrunnerMode.h"
 #include "Graphics.h"
+#include "LevelDebugger.h"
 #include "Localization.h"
 #include "LocalizationStorage.h"
 #include "KeyPoll.h"
@@ -7491,7 +7492,7 @@ int Game::get_timestep(void)
 
 bool Game::physics_frozen(void)
 {
-    return roomname_translator::is_pausing();
+    return roomname_translator::is_pausing() || level_debugger::is_pausing();
 }
 
 bool Game::incompetitive(void)
diff --git a/desktop_version/src/Input.cpp b/desktop_version/src/Input.cpp
index 55c8064e..dcb29828 100644
--- a/desktop_version/src/Input.cpp
+++ b/desktop_version/src/Input.cpp
@@ -13,6 +13,7 @@
 #include "Graphics.h"
 #include "GraphicsUtil.h"
 #include "KeyPoll.h"
+#include "LevelDebugger.h"
 #include "Localization.h"
 #include "LocalizationMaint.h"
 #include "LocalizationStorage.h"
@@ -2436,6 +2437,12 @@ void gameinput(void)
         }
     }
 
+    level_debugger::input();
+    if (level_debugger::is_pausing())
+    {
+        return;
+    }
+
     game.press_map = false;
     if (key.isDown(KEYBOARD_ENTER) || key.isDown(SDLK_KP_ENTER) || key.isDown(game.controllerButton_map)  )
     {
diff --git a/desktop_version/src/LevelDebugger.cpp b/desktop_version/src/LevelDebugger.cpp
new file mode 100644
index 00000000..b8f902b8
--- /dev/null
+++ b/desktop_version/src/LevelDebugger.cpp
@@ -0,0 +1,306 @@
+#include "LevelDebugger.h"
+
+#include "Constants.h"
+#include "Entity.h"
+#include "Font.h"
+#include "Graphics.h"
+#include "KeyPoll.h"
+#include "Localization.h"
+#include "Map.h"
+#include "UtilityClass.h"
+#include "VFormat.h"
+
+namespace level_debugger
+{
+    bool active = false;
+    bool should_pause = true;
+    bool tab_held = false;
+    bool debug_held = false;
+
+    // Moving entities/blocks
+    bool mouse_held = false;
+    int held_entity = -1;
+    int held_block = -1;
+    int grabber_offset_x = 0;
+    int grabber_offset_y = 0;
+
+    bool is_pausing(void)
+    {
+        return active && should_pause;
+    }
+
+    bool is_active(void)
+    {
+        return active;
+    }
+
+    void toggle_active(void)
+    {
+        active = !active;
+    }
+
+    bool mouse_within(SDL_Rect* rect)
+    {
+        return key.mx >= rect->x && key.mx < rect->x + rect->w &&
+            key.my >= rect->y && key.my < rect->y + rect->h;
+    }
+
+    void input(void)
+    {
+        if (!map.custommode || map.custommodeforreal)
+        {
+            active = false;
+            return;
+        }
+
+        if (key.isDown(SDLK_y))
+        {
+            if (!debug_held)
+            {
+                debug_held = true;
+                active = !active;
+            }
+        }
+        else
+        {
+            debug_held = false;
+        }
+
+        if (!active)
+        {
+            return;
+        }
+
+        if (key.isDown(SDLK_TAB))
+        {
+            if (!tab_held)
+            {
+                tab_held = true;
+                should_pause = !should_pause;
+            }
+        }
+        else
+        {
+            tab_held = false;
+        }
+
+        for (int i = 0; i < obj.entities.size(); i++)
+        {
+            SDL_Rect bounding_box = {
+                obj.entities[i].xp + obj.entities[i].cx,
+                obj.entities[i].yp + obj.entities[i].cy,
+                obj.entities[i].w,
+                obj.entities[i].h
+            };
+
+            if (key.leftbutton)
+            {
+                if (mouse_within(&bounding_box))
+                {
+                    if (!mouse_held)
+                    {
+                        mouse_held = true;
+                        held_entity = i;
+                        grabber_offset_x = key.mx - obj.entities[i].xp;
+                        grabber_offset_y = key.my - obj.entities[i].yp;
+
+                        if (!key.keymap[SDLK_LSHIFT] && !key.keymap[SDLK_RSHIFT])
+                        {
+                            for (int j = 0; j < obj.blocks.size(); j++)
+                            {
+                                if (obj.entities[i].xp == obj.blocks[j].rect.x && obj.entities[i].yp == obj.blocks[j].rect.y)
+                                {
+                                    held_block = j;
+                                }
+                            }
+                        }
+                    }
+                    break;
+                }
+            }
+            else
+            {
+                mouse_held = false;
+                held_entity = -1;
+                held_block = -1;
+            }
+        }
+
+        if (held_entity == -1)
+        {
+            for (int i = 0; i < obj.blocks.size(); i++)
+            {
+                SDL_Rect bounding_box = {
+                    obj.blocks[i].rect.x,
+                    obj.blocks[i].rect.y,
+                    obj.blocks[i].rect.w,
+                    obj.blocks[i].rect.h
+                };
+
+                if (key.leftbutton)
+                {
+                    if (mouse_within(&bounding_box))
+                    {
+                        if (!mouse_held)
+                        {
+                            mouse_held = true;
+                            held_block = i;
+                            grabber_offset_x = key.mx - obj.blocks[i].rect.x;
+                            grabber_offset_y = key.my - obj.blocks[i].rect.y;
+                        }
+                        break;
+                    }
+                }
+                else
+                {
+                    held_entity = -1;
+                    mouse_held = false;
+                    held_block = -1;
+                }
+            }
+        }
+
+        if (INBOUNDS_VEC(held_entity, obj.entities))
+        {
+            obj.entities[held_entity].xp = key.mx - grabber_offset_x;
+            obj.entities[held_entity].yp = key.my - grabber_offset_y;
+
+            if (key.isDown(SDLK_LSHIFT) || key.isDown(SDLK_RSHIFT))
+            {
+                obj.entities[held_entity].xp -= obj.entities[held_entity].xp % 8;
+                obj.entities[held_entity].yp -= obj.entities[held_entity].yp % 8;
+            }
+        }
+
+        if (INBOUNDS_VEC(held_block, obj.blocks))
+        {
+            int new_xp = key.mx - grabber_offset_x;
+            int new_yp = key.my - grabber_offset_y;
+
+            if (key.isDown(SDLK_LSHIFT) || key.isDown(SDLK_RSHIFT))
+            {
+                new_xp -= new_xp % 8;
+                new_yp -= new_yp % 8;
+            }
+
+            obj.blocks[held_block].xp = new_xp;
+            obj.blocks[held_block].yp = new_yp;
+            obj.blocks[held_block].rect.x = new_xp;
+            obj.blocks[held_block].rect.y = new_yp;
+        }
+    }
+
+    void render_info(int y, const char* text, const char* value)
+    {
+        char buffer[SCREEN_WIDTH_CHARS + 1];
+        vformat_buf(buffer, sizeof(buffer), text, "value:str", value);
+        font::print(PR_BOR | PR_FONT_8X8, 5, 32 + (10 * y), buffer, 220 - (help.glow), 220 - (help.glow), 255 - (help.glow / 2));
+    }
+
+    void render(void)
+    {
+        if (!active)
+        {
+            return;
+        }
+
+        int hovered = -1;
+        bool hovered_entity = true;
+        SDL_Rect hover_box;
+
+        for (int i = 0; i < obj.entities.size(); i++)
+        {
+            SDL_Rect bounding_box = {
+                obj.entities[i].xp + obj.entities[i].cx,
+                obj.entities[i].yp + obj.entities[i].cy,
+                obj.entities[i].w,
+                obj.entities[i].h
+            };
+
+            bool hovering = false;
+
+            if (hovered == -1 && mouse_within(&bounding_box))
+            {
+                hovering = true;
+                hovered = i;
+                hovered_entity = true;
+                hover_box = bounding_box;
+            }
+
+            graphics.draw_rect(bounding_box.x, bounding_box.y, bounding_box.w, bounding_box.h, graphics.getRGB(15, 90, 90));
+        }
+
+        for (int i = 0; i < obj.blocks.size(); i++)
+        {
+            SDL_Rect bounding_box = {
+                obj.blocks[i].rect.x,
+                obj.blocks[i].rect.y,
+                obj.blocks[i].rect.w,
+                obj.blocks[i].rect.h
+            };
+
+            bool hovering = false;
+
+            if (hovered == -1 && mouse_within(&bounding_box))
+            {
+                hovering = true;
+                hovered = i;
+                hovered_entity = false;
+                hover_box = bounding_box;
+            }
+
+            graphics.draw_rect(bounding_box.x, bounding_box.y, bounding_box.w, bounding_box.h, graphics.getRGB(90, 15, 15));
+        }
+
+        font::print(PR_BOR | PR_FONT_8X8, 5, 14, loc::gettext("[Press TAB to toggle movement]"), 220 - (help.glow), 220 - (help.glow), 255 - (help.glow / 2));
+
+        if (hovered != -1)
+        {
+            int line = 0;
+            if (hovered_entity)
+            {
+                entclass* entity = &obj.entities[hovered];
+                render_info(line++, "Index: {value}", help.String(hovered).c_str());
+                render_info(line++, "X: {value}", help.String(entity->xp).c_str());
+                render_info(line++, "Y: {value}", help.String(entity->yp).c_str());
+                render_info(line++, "Width: {value}", help.String(entity->w).c_str());
+                render_info(line++, "Height: {value}", help.String(entity->h).c_str());
+                line++;
+                render_info(line++, "Rule: {value}", help.String(entity->rule).c_str());
+                render_info(line++, "Type: {value}", help.String(entity->type).c_str());
+                render_info(line++, "Behave: {value}", help.String(entity->behave).c_str());
+                render_info(line++, "Para: {value}", help.String(entity->para).c_str());
+                line++;
+                render_info(line++, "Tile: {value}", help.String(entity->tile).c_str());
+                render_info(line++, "Draw Frame: {value}", help.String(entity->drawframe).c_str());
+                render_info(line++, "Size: {value}", help.String(entity->size).c_str());
+                render_info(line++, "Direction: {value}", help.String(entity->dir).c_str());
+
+                graphics.draw_rect(hover_box.x, hover_box.y, hover_box.w, hover_box.h, graphics.getRGB(32, 255 - help.glow, 255 - help.glow));
+            }
+            else
+            {
+                blockclass* block = &obj.blocks[hovered];
+                render_info(line++, "Index: {value}", help.String(hovered).c_str());
+                render_info(line++, "X: {value}", help.String(block->rect.x).c_str());
+                render_info(line++, "Y: {value}", help.String(block->rect.y).c_str());
+                render_info(line++, "Width: {value}", help.String(block->rect.w).c_str());
+                render_info(line++, "Height: {value}", help.String(block->rect.h).c_str());
+
+                line++;
+
+                if (block->type == TRIGGER || block->type == ACTIVITY)
+                {
+                    render_info(line++, "Script: {value}", block->script.c_str());
+                    render_info(line++, "State: {value}", help.String(block->trigger).c_str());
+                }
+                else if (block->type == DIRECTIONAL)
+                {
+                    render_info(line++, "Direction: {value}", help.String(block->trigger).c_str());
+                }
+
+                graphics.draw_rect(hover_box.x, hover_box.y, hover_box.w, hover_box.h, graphics.getRGB(255 - help.glow, 32, 32));
+            }
+        }
+    }
+};
diff --git a/desktop_version/src/LevelDebugger.h b/desktop_version/src/LevelDebugger.h
new file mode 100644
index 00000000..8f8b988a
--- /dev/null
+++ b/desktop_version/src/LevelDebugger.h
@@ -0,0 +1,14 @@
+#ifndef LEVELDEBUGGER_H
+#define LEVELDEBUGGER_H
+
+#include <SDL.h>
+
+namespace level_debugger
+{
+    bool is_pausing(void);
+    bool is_active(void);
+    void input(void);
+    void render(void);
+}
+
+#endif /* LEVELDEBUGGER_H */
diff --git a/desktop_version/src/Render.cpp b/desktop_version/src/Render.cpp
index 7c6ca1ce..dc064642 100644
--- a/desktop_version/src/Render.cpp
+++ b/desktop_version/src/Render.cpp
@@ -14,6 +14,7 @@
 #include "GraphicsUtil.h"
 #include "InterimVersion.h"
 #include "KeyPoll.h"
+#include "LevelDebugger.h"
 #include "Localization.h"
 #include "LocalizationStorage.h"
 #include "MakeAndPlay.h"
@@ -2472,6 +2473,7 @@ void gamerender(void)
         graphics.drawtrophytext();
     }
 
+    level_debugger::render();
 
     graphics.renderwithscreeneffects();
 }