After announcing the Linux version of Rebirth, Egosoft also started working on the alpha test for the in-house Mac OS X port. Since X Rebirth is a Steam Play title, this OS X port is available to everyone who owns X Rebirth on Steam already.

To enter the OS X alpha version, all you have to do is the following: 

  • If you don't already have it, download and install the Steam Client for Mac.
  • Log in with your Steam account and install X Rebirth from your game library.
  • When the download is complete, right-click on X Rebirth and select Properties. In the dropdown menu of the Betas tab select the "macosx" branch and start the game. When being asked, download the update.

Please be aware that this is still an early test version, so expect the possibility of unforeseen crashes and bugs. If you're interested in testing this version, then please visit the official Support topic in the X Rebirth Technical forum, where you can find further information.