Godogen turns one prompt into a playable game for Claude Code and Codex

Godogen is open source and MIT-licensed, built to run on top of Claude Code or Codex rather than replace either one. You describe the game in plain language, pick an engine, and the agent takes it from there: writing the actual project code, generating textures and 3D models, animating sprites, then launching the build to see what it made. Three engines are supported right now. Godot 4 projects come out in C# with .NET and use Jolt for physics. Bevy targets Rust and leans on its ECS architecture with offscreen rendering. Babylon.js is the browser option, TypeScript and Vite, and it deploys straight to a live URL you can open immediately.

The asset side isn’t one model doing everything, which is probably the more interesting design choice here. Google’s Gemini handles characters and reference art. Grok generates textures and simpler objects. Tripo3D is responsible for 3D models, including rigged animation, and a video-generation model from Grok handles animated sprites with loop detection built in so movement doesn’t visibly stutter at the seam. Four different systems, stitched into one pipeline, each doing the part it’s apparently best at.

What separates this from a typical code-gen tool is how it checks its own work. The agent doesn’t stop once the project compiles cleanly — a clean build tells you almost nothing about whether the game is actually playable. Instead it looks at the running game itself, either a live URL for the Babylon.js path or a recorded clip for the others, and if something’s visibly broken on screen, that triggers another pass. The end result ships with a 15-to-20-second clip as proof the thing runs, not just builds.

It’s also built with longer, unattended jobs in mind rather than a single quick session. The setup supports tmux or screen so a build can keep running on a server, plus remote-control interfaces for both Claude Code and Codex, so nobody has to babysit a terminal the whole time. Getting it running still asks for a fair number of pieces: Python 3, Node 22.12+, Rust and Cargo, a .NET build of Godot 4, working WebGL2, and separate API keys for Google AI, xAI, and Tripo3D before asset generation works at all.