Open-Source MMO Reinforcement Learning Environment Released

World of ClaudeCraft is an open-source project that simultaneously offers a classic-style MMO game and an AI agent reinforcement learning environment.

The core design of this project is 'one simulation, three execution environments.' It uses the same deterministic game core to drive all three of the following environments.

• Offline Browser World: Instantly playable in a web browser with no separate installation required
• Authoritative Server: A PostgreSQL-based multiplayer live world
• Headless Reinforcement Learning Environment: Enables agent training through Python's Gymnasium interface

Reinforcement learning users can train agents using the reset, step loop via Python bindings, and the Observation Space consists of a Box space that includes character state, nearby monsters, quest progress, and more. The reward function is designed as a weighted sum of various metrics such as experience gained, damage dealt, and kill count, making it customizable.