Argentum Engine

Unofficial online Magic: The Gathering rules engine and play platform, browser-based and free.

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Argentum Engine is a free, open-source, unofficial Magic: The Gathering rules engine and online play platform that runs in the browser. It's built by fans and is not affiliated with Wizards of the Coast. It's aimed at players who want to play a full, rules-accurate game online without a paid client.

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Problem & pain-point mapping
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What it's a strong alternative to
Trust & credibility signals

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