AI agents told to build a society in Unreal Engine spent 20 hours beating each other up
SimplyAnnisa · x · 2026-09-23
A user asked Claude Opus 5.5 to build a world in Unreal Engine populated by AI agents (Opus, Astra, Sol, Grok), with assets generated in Blender via Higgsfield. The build took over 20 hours, and the agents' only instruction was to form a working society, allocate roles, and evolve. By morning they were beating each other up — a failed society captured on video.
The quoted Higgsfield post notes Opus 5.5 is now live on its platform, claiming it's 40% cheaper and over 30% faster than Opus 5, accessible via the Higgsfield MCP.
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