OpenWorld

OpenWorld is a pixel-art open-world RPG playable in the browser. The world contains over a thousand maps across villages, cities, wilderness, and dungeons. Players explore a main story with side quests, engage in real-time combat with telegraphed boss attacks, craft items, farm, and build on their own land. NPCs have homes, jobs, and daily routines. When players attempt actions without existing rules, a language model can propose new rules that the engine validates before applying them; the game remains fully playable without AI assistance.

Built with Claude Code, OpenWorld serves as a research platform for studying large symbolic worlds. It includes an engine and editor, supports English and Chinese, and is designed for players who want exploration with emergent gameplay mechanics.