I Started Building a Roguelike RPG — Powered by On-Device AI #1

I've been getting into on-device AI lately. Not cloud AI. Not sending requests to a server somewhere. I mean a language model running entirely on the phone itself — no internet required, no API costs, no data leaving the device. When I learn something new, I have to build something. So I did. Why On-Device AI Is Interesting Right Now It's slow. It's limited. Compared to cloud LLMs, it's nowhere close. But the direction is clear. Smartphone NPUs are getting significantly more powerful every year. Model compression techniques are improving every month. The performance that required a cloud GPU two years ago is starting to run on a phone today. The people who get familiar with this now will have an advantage when it becomes mainstream. That's why I'm learning it now. What I Built A roguelike RPG. Help Wanted: Hero — Conquering the Demon Lord's Castle, 300 floors. An on-device LLM generates the dungeon every 5 floors. Mob names, dialogue, boss patterns, hidden events — all created locally,