Build an AI browser game maker for hobbyists and indie developers. Features: 1) Game type selector: choose from platformer, top-down RPG, puzzle, arcade shooter, or endless runner, 2) AI level generation: describe a level in plain English (e.g. a lava cave with floating platforms and three enemies) and AI generates a playable level with collision detection and spawn points, 3) Sprite and asset generation: AI creates pixel art sprites for characters, enemies, items, and backgrounds from text descriptions, 4) Physics engine: built-in 2D physics with gravity, collisions, and platform mechanics, 5) Game logic editor: visual node-based system for defining player movement, enemy AI behavior, win/lose conditions, and scoring, 6) Sound effects: AI generates retro sound effects for jumps, collisions, pickups, and game-over, 7) Play test mode: instantly preview the game in-browser with debug overlay, 8) Export: publish as a standalone HTML5 game playable on any browser or export as embeddable iframe. Canvas-based game editor with asset panel on the left, game viewport in center, and properties panel on the right.