Argentum Engine

Before the oil. Before the corruption. There was only perfection.

An unofficial Magic: The Gathering rules engine and online play platform. Not affiliated with, endorsed, sponsored, or specifically approved by Wizards of the Coast LLC.

Play now at magic.wingedsheep.com · Join our Discord

Want to help? Missing a card from your deck? Run just contribute and let Claude Code or Codex build it — see Contributing.

Overview

Argentum Engine is a modular MTG implementation composed of:

• Rules Engine — A deterministic Kotlin library implementing MTG comprehensive rules
• Game Server — Spring Boot backend for online multiplayer
• Web Client — Browser-based UI
• Gym — An RL/MCTS environment wrapper around the rules engine, with an HTTP transport for Python training loops
• Argentum Assay — A bidirectional Oracle-text parser that measures, card by card, how much of Magic the card SDK can express

Implementation Progress

Live set completion tracker → magic.wingedsheep.com/set-completion —…