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XMage — Magic, Another Game Engine

Build Status Coverage latest release commints since latest release Join the chat at

XMage allows you to play Magic against one or more online players or computer opponents. It includes full rules enforcement for over 20 000 unique cards and more than 50.000 reprints from different editions. You can also find custom sets like Star Wars. All regular sets have nearly all implemented cards.

It's support single matches and tournaments with dozens game modes like duel, multiplayer, standard, modern, commander, pauper, oathbreaker, historic, freeform and much more.

Local server supports a special test mode for testing combos and other game situations with pre-defined conditions.

There are public servers where you can play XMage against other players. You can also host your own server to play against the AI and/or your friends.

XMage community and resources:

Servers status:

Beta server with un-released or under development features:


  • Multiplatform app: Windows, Linux, MacOS;
  • Deck editor (support multiple deck formats and deck sources);
  • Two player duel or a multiplayer free-for-all game with up to 10 players;
  • Computer AI opponents;
  • Players rating system (Glicko);
  • Supports special formats like Commander (up to 10 players), Oathbreaker, Cube, Tiny Leaders, Super Standard, Historic Standard and more;
  • Single matches or tournaments supported (elimination or swiss type handling), which can be played with up to 16 players:
    • Booster (also Cube) draft tournaments (4-16)
    • Sealed (also from Cube) tournaments (2-16)

Bug report / feature request

The best way to report bug or feature request is github's issues page. There are another way to report bugs too:

Installation / running

Look here for more detailed instructions.

Wiki page contains detail information about private or public server setup.

Server options

The XMage server locates by default the configuration file from the current working directory to the relative path config/config.xml (config\config.xml in Windows). To change this location, start the server with the property xmage.config.path set to the desired location, for example -Dxmage.config.path=config/otherconfig.xml. The option can be set from the XMageLauncher in Settings > Java > Server java options.

Troubleshooting / FAQ

Github issues page contain popular problems and fixes:

Performance tweaks

If you have a good GPU, it's very likely you'll be able increase performance by a lot through extra Java flags.

XMage runs on JRE 8, so this link should give you the available flags.

How to enable the extra flags

  1. Launch XMage
  2. In the menu bar from the launcher, click on "Settings", which will open up the Settings Window
  3. Go to the "Java" tab
  4. You can pass extra flags by editing the "Client java options" text field

Linux tweaks

Enable OpenGL

More info about OpenGL:

  • -Dsun.java2d.opengl=true

Possible problems:

  • Caveat: There's a bug with the file chooser when OpenGL is enabled (you use the file chooser when you, for instance, try to load a deck from disk). The suggested workaround will make the game crash, so it's not an option.
  • Workaround: When using i3, you're able to work around the bug by toggling the "floating" capabilities of the window and forcing it to re-render.

Enable XRender

More info about XRender:

  • -Dsun.java2d.xrender=true

Increase memory usage

This is not guaranteed to yield improvements, but it depends on your use-case. If you have a lot of RAM to spare, you might as well increase the initial heap size for good measure. More details about memory settings:

  • -Xms1G -Xmx2G


Full project documentation and instructions for developers can be found in wiki pages.

First steps for Xmage's developers:

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