Phase

Open-source Magic: The Gathering rules engine and game client for desktop and browser.

Desktopfree

Phase is an open-source Magic: The Gathering rules engine and game client built in Rust with a React interface, running as a desktop app or in the browser. It covers the stack, combat, layers and triggers, and adds an AI opponent, deck builder and online multiplayer. It is aimed at players who want to play or test Magic games digitally without a commercial client.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Phase - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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