Godogen

Godogen is an open-source project by Alex Ermolov that hands game development to a coding agent, either Claude Code or OpenAI Codex. You write a description of the game, and the agent writes the code, makes the assets, launches the engine and judges its own work from the running game or a recorded clip instead of stopping at a successful build, according to the project's README.

Godogen is a generator, not a game. Its publish.sh script sets up a fresh repository for one engine and one agent: Godot 4 (C# or GDScript), Bevy (Rust), or Babylon.js or three.js for the browser. That repository contains only a short engine guide and an asset-generation skill; the agent builds everything else inside it. The README says you can follow along and make calls at key moments, or walk away and receive a proof video of 15 to 20 seconds when the run ends.

Since an October 16, 2026 update, assets come by default from godogen_assets, the author's companion repo of local, open-weight models for images, textured 3D, rigged characters, sound effects and voices. Paid APIs from Google, xAI and Tripo cover what the local tools can't, per the changelog.

The code is free under the MIT license, but you need Claude Code or Codex, and the free local assets need an NVIDIA GPU. It suits command-line users who want to see how far an unattended agent can take a game. AIGamer has not tested it.