Play Magic: The Gathering with Forge, an unofficial rules engine for the card game.
Forge
Forge provides an unofficial rules engine for tabletop role-playing games, supporting character and game session management.
About Forge
Forge is an open-source rules engine for Magic: The Gathering, developed by a community of programmers. It is an unofficial project that operates independently and is not affiliated with Wizards of the Coast. It lets players play the game against AI opponents in several single-player modes, including Adventure Mode, Quest Mode, and AI-played Sealed, Draft, Commander, and Cube formats.
The project provides desktop builds for Windows, Mac, and Linux, and an Android APK. Desktop installation requires Java 17 or later. Android requires Android 11 or later with at least 6GB of RAM, and users must enable "Install unknown apps" for Forge to initialize and update itself. On first launch, the Android version downloads its required assets. The iOS version is described as early stage and requires building an IPA, developer mode, and sideloading through a PC.
Key features
- Rules engine for Magic: The Gathering gameplay
- Adventure Mode with an overworld map and AI opponents
- Quest Mode for focused single-player sessions without overworld exploration
- Single-player AI play in Sealed, Draft, Commander, and Cube formats
- Java-based architecture that accepts community contributions of features and cards
- Previous player data preserved during desktop upgrades
Best for: Magic: The Gathering players who want to play against AI on desktop or Android, and developers interested in contributing to an open-source rules engine.
Good for
- Open source under the GPL-3.0 license
- Cross-platform support for Windows, Mac, Linux, and Android
- Documented contribution guidelines for community members
Watch out for
- Unofficial project, not affiliated with Wizards of the Coast
- iOS support is described as early stage and requires developer mode and a PC for sideloading
- Android requires at least 6GB of RAM and Android 11 or later
Forge at a glance
- Website
- github.com/Card-Forge/forge
- Category
- Gaming › Mods & Fan Projects
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Forge FAQ
Is Forge affiliated with Wizards of the Coast?
No. The project states that it operates independently and is not affiliated with Wizards of the Coast.
What are the Android requirements?
Android 11 is the minimum requirement, with at least 6GB of RAM to run smoothly. You need to enable "Install unknown apps" for Forge to initialize and update itself.
Which Java version does the desktop version need?
Java 17 or later.
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