Card-Forge / forge

An unofficial rules engine for the world's greatest card game.

magefree / mage

XMage - Magic Another Game Engine

Cockatrice / Cockatrice

A cross-platform virtual tabletop for multiplayer card games

andrewgioia / keyrune

Magic: the Gathering set symbol pictographic font

ClayStan404 / hexproof

Native desktop multiplayer tabletop for Magic: The Gathering. Manual tables, draft/sealed/cube, and connected-hub Swiss tournaments.