Claude Opus 5 built a full browser FPS in one HTML file with AI enemies and 60 fps
prasenx · x · 2026-07-26
Claude was used to build a full browser FPS game in one HTML file
The reply describes a demo and shares the repo and prompt. The claimed result is a complete first-person shooter built with Claude Opus 5 in a single HTML file, with no assets and no build tools.
Notable features include:
- 4 weapons with ADS, recoil and reloads
- 10 AI enemies that flank, take cover and call out positions
- sniper scope mechanics with breath holding and sway
- mantling, double jump and sprinting
- textures and sounds generated from code
- runs at 60 fps in the browser
The project is presented as a compact, generated game that showcases how far a model can go in producing a playable, polished experience from a single prompt.
Related event: Claude Opus 5 Sparks Buzz with Single-Prompt 3D Game Generation(28 posts)→
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