Anthropic engineer's one prompt yields full FPS game after 8 hours and $550
iamfakhrealam · x · 2026-11-10
An Anthropic engineer gave Fable 5.2 a single one-shot prompt to build an entire game from scratch with zero human feedback. 8 hours and $550 of compute later, it shipped a complete FPS with its own models, sounds, and textures. The demo is part of a wave of ambitious one-shot builds appearing within 12 hours of Fable 5.2's release, showcasing long-horizon autonomous coding and asset generation rather than a traditional game dev pipeline.
Related event: Claude Fable 5.2 launch sparks wave of one-shot generation demos(28 posts)→
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