One prompt, 6 hours, 450M tokens: Fable5.2 builds a 30MB single-file 3D wuxia action game
歸藏的AI工具箱 · wechat · 2026-11-12
Chinese creator op7418 (歸藏) gave Fable5.2 (with some Opus 5.5 runs) just one instruction — "make a Chinese fantasy action game" — and after 6 hours and 450M tokens got a playable top-down 3D action game, plus an open-sourced Skill called guizang-game-skill.
What the model built autonomously
- A single 30MB HTML file (assets compressed from 100MB), playable on mobile and desktop using only WebGL
- 5 rigged 3D characters with combo attacks, dodge, parry-counter executions, two-phase boss; scenes with dynamic grass, water reflections, layered fog/snow
- Full asset pipeline: Jimeng for concept art → Tripo for 3D models, Jimeng voice for 8 lines, Suno for music — all prompts written by the model itself
Human's key moves: 7 playtest rounds with vague feedback ("combat feels stiff") the model translated into research and best practices; reference videos; "research before building"; and crucially suppressing the model's tendency to hand-roll assets instead of using Jimeng/Tripo.
Trend take: the author argues web games are coming back — zero-install distribution plus aggressive asset compression (someone ported GTA5 to 700MB in-browser) — and calls for a modern HTML game platform like the old 4399.
Related event: Fable 5.2 Generates a 3D Action Game from a Single Prompt(2 posts)→
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