3D worldsMatthew Berman @MatthewBerman2026-09-220:54

San Francisco recreated in Unreal Engine

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A recreation of San Francisco in Unreal Engine populated by a 200,000-person agent simulation, where a model called Jev picks each simulated person's next action from options a code layer generates.

Tools the creator mentioned

Unreal EngineJev

Original post: https://x.com/MatthewBerman/status/2102483668468195539

Model attribution is as stated by the creator and was not independently reproduced. View counts are a snapshot from 2026-09-28. The work belongs to its creator; DM @GoSailGlobal on X for corrections or removal.

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