Crystal Caper
0A pixel-art platformer where 100% of the art is AI-generated. Playable in your browser.
The story
A complete platformer built from a single prompt — "a full game with generated assets" — with every sprite, animation, and tile generated on demand through the PixelLab MCP, none of it hand-drawn or licensed. Pip the fox runs, jumps, and stomps mushrooms across endless procedurally-generated levels cycling through forest, snow, and desert biomes, with a crowned boss, King Grumpcap, capping every 5th level. The whole build chain ran with no human in the loop for the core loop: PixelLab generated the character, enemy, and tileset art from roughly 7 of a 20-generation trial budget, SpriteKit assembled it into a physics-driven platformer with camera follow and parallax, an in-headless autopilot self-test caught a real level bug before a human ever touched a controller, and the same procedural level generator got ported line-for-line to a web build so the HTML5/Canvas version plays identically to the iOS original. Even the boss is a deliberately hand-coded placeholder — kept that way on purpose to conserve the PixelLab generation budget for the assets that mattered more.
Highlights
- ✦100% AI-generated art and animation via the PixelLab MCP — character, enemy, and tileset, none hand-drawn
- ✦Procedurally-generated endless levels across 3 biomes, ported line-for-line from Swift to a matching web build
- ✦Autopilot self-test plays the game headlessly and caught a real level bug pre-launch
- ✦A crowned, armored boss — King Grumpcap — gates every 5th level with a 3-hit telegraph/charge/recover pattern
- ✦Shared online leaderboard on a Cloudflare Worker + KV, verified end-to-end before ever touching a live account
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