AI agents spend 500 hours recreating Ocarina of Time from scratch
A 500-hour AI game dev experiment used GPT-6 Astra, Fable 5.1 and Opus 5.5 to generate the world, gameplay, animations and UI from scratch without a game engine.
a 500-hour AI game dev experiment just recreated ocarina of time from scratch No Unity. No Unreal. No traditional game engine. The entire experience was built through AI agents running for 500+ hours, with GPT-6 Astra, Fable 5.1 and Opus 5.5 handling different parts of the process. The wild part isn't just that it works. The system reportedly generated the world, gameplay logic, environments, character behaviors, animations and UI as one continuous development loop. It even kept iterating after the first playable build, using automated testing to find broken mechanics and regenerate them. We're getting dangerously close to a point where "building a game" stops meaning thousands of lines written by hand. You describe the world. The agents build it.