Games · Model tests

Games made by models

Browser games that double as a test bench: I give a model one task and see how far it gets on its own.

Each card says which model made the game, in what setup, and how much of it came from the first attempt.

Games: 01
Models: 01

Games

01Playable2026
Rail Rush
A 3D endless runner along railway tracks: dodge trains, run over their roofs, grab power-ups and stay ahead of a patrol robot and its robo-dog. The whole game came out of a single prompt — graphics, menus, heroes, behaviour, the procedural music and sound. The prompts after it only fixed small things and barely touched the first version.
- Three.js
- WebGL
- Vite
Model
Claude Opus 5.5
Setup
Claude Code · Ultracode
Prompts
One for the game, a few for small fixes
Play — Rail Rush

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Played it and have thoughts, or want to see a model take on another game? Write to me.