Most "AI games" phone home. Every turn is an API round-trip, every player burns your tokens, and the whole thing dies the day the bill scares you. I wanted the opposite: a text roguelike where the dungeon master is an LLM that runs entirely in the player's browser — no server, no API key, no per-token cost, and it keeps working offline after the first load.
Here's the architecture and the one bug that taught me the most.
The core trick: WebLLM + WebGPU
— all running on-device.
Happy to go deeper on the JSON-contract prompt or the WebGPU loading UX in the comments.
Vollständiger Original-Bericht
Ausführliche Details, Code-Beispiele & Hersteller-Stellungnahme auf dev.to.
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