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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
02
Models
02

Games

  1. 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. The model managed it in 56 minutes.

    • 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

  2. 02Playable2026

    City Street

    A procedural 3D street of a European city on a rainy autumn evening, called Autumn Avenue in the game itself. Not a single external model or texture: the buildings, signs, asphalt, people, cars and even the sound are generated right in the browser. Change the time of day and the weather on the fly, watch a camera tour of the street, walk it in first person or fly over it. Built from a single prompt in 2 hours 11 minutes and about 210 thousand tokens.

    • Three.js
    • WebGL
    • Vite
    Model
    Claude Sonnet 5.5
    Setup
    Claude Code · Max effort
    Prompts
    One, and nothing after it
    Play — City Street

Open source

Everything I make is open on GitHub

The code of this site, the plugins and skills, the games and the experiments that did not work out.

github.com/zorahm