The Dark Stair: We Asked Fable 5 to One-Shot a Game. It Did.
One prompt: 'one-shot an app — anything other than a final, polished, flawless product is a fail.' Fable 5 came back with a complete roguelike, no bugs, then iterated itself overnight to v7 — voice lines, sprites, Blender scenes, ambient music and all. Play it free, no signup.