Image: reddit.com · Video still: GTA 6 first attempt. Far from perfect, but it's impressive what the right harness and agentic loops can build.
A rough GTA-style 3D game prototype built by agent loops
An experiment using agent loops in Claude Code to build a GTA 6-style browser game, which failed at first and reached a rough prototype after 22 hours and 86 agents.
Credits
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The full story
After building a Worms Armageddon demo from a single prompt with Matt Shumer's Gauntlet Loop, the maker tried something far more ambitious: a GTA 6-style game. The first attempt failed badly and got stuck after producing little more than a basic 3D world. More loops and workflows turned it into the very rough prototype shown in the post, after 22 hours and 86 agents.
The maker found that Claude Code cannot watch gameplay video, so it extracts frames and reasons over them, which helps somewhat. Exporting structured JSON describing the game state worked far better. They plan to keep going and may move from Three.js to Babylon.js.
How it was done
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Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: GTA 6 first attempt. Far from perfect, but it's impressive what the right harness and agentic loops Reddit poster: smith2008Posted
The maker's post on r/ClaudeAI.
If it disappears: archived copy of Reddit: GTA 6 first attempt. Far from perfect, but it's impressive what the right harness and agentic loops (opens in a new tab)