Insert any cartridge to play

Ten game-dev tools, pressed into ten games you can play.

Physics, destruction, fire, crowds, procedural maps, level geometry, level of detail and branching story, plus two agent skill packs that make a coding agent work like a game team. Each tool came from a research wiki of saved game-dev repos and became an original browser game, built with the tool itself by Claude Code. Every cartridge ships with its manual: the exact prompt, the steps and the snags.