It's not a full game yet, but the substrate on which I am building one. It implements a completely deterministic SDF VM rendering engine that allows edits in real-time at acceptable performance levels. The engine is essentially folded in on itself as the editor is the game; assuming that an editor mode was actually defined in the world document. It's a lot...
https://claude.ai/code/artifact/382aee8a-3a3b-4cf8-801f-3ddb...