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 One-Shots Complete 3D Games(29 posts)→
More from coding & agent
- Reticle builds a verification layer that lets AI coding agents check their own generated code — Scobleizer · 2026-10-27
- Trust your agent, but read its logs: Claude managed agents tips — brada · 2026-10-27
- Dev training a guard model to block prompt injection, tool and memory poisoning — gnukeith · 2026-10-27
- Dev trains a ~4GB-VRAM sentinel model to guard against prompt injection and poisoned memory — gnukeith · 2026-10-27
- Superset rebrands as Paradev, raises $11.5M seed led by USV — massimosgrelli · 2026-10-27
- Ex-Big Tech managers may thrive in the AI era: manage agents like you managed teams — lxfater · 2026-10-27