UE 5.9's built-in AI assistant builds a city from gray boxes and saves the layout
chrisfirst · x · 2026-11-13
Part of chrisfirst's Epic AI MegaJam build thread: the world started as gray boxes on a blank map, built by Unreal Engine's built-in AI assistant, which saved the layout so it can rebuild it at any time. Screenshots show the Assistant panel detailing bridge specs, city-pack placement rules, and gotchas like Nanite first-load delays and fixing an accidentally deleted ocean.
Related event: chrisfirst Live-Builds an Island City of ~4000 Buildings with AI in UE5.9(6 posts)→
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