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Valve Software has released another bugfix release for Proton 6.3. Proton is a tool based on WINE for use with the Steam client which allows games which are exclusive to Windows to run on the Linux operating system.





Proton is a tool for use with the Steam client which allows games which are exclusive to Windows to run on the Linux operating system. It uses Wine to facilitate this.

Most users will prefer to use Proton provided by the Steam client itself. The source code is provided to enable advanced users the ability to alter Proton. For example, some users may wish to use a different version of Wine with a particular title.


New in Proton 6.3-3:

  • Previously in Experimental: Update vkd3d-proton to v2.3.1.
  • Previously in Experimental: The Origin Overlay is functional, which allows It Takes Two to be played with friends.
  • Previously in Experimental: Mount & Blade II: Bannerlord is playable.
  • Previously in Experimental: Fix Red Dead Redemption 2 "Not Purchased" error.
  • Previously in Experimental: Fix Age of Empires II: Definitive Edition hang on startup.
  • Fixed launchers for Evil Genius 2, Zombie Army 4, Strange Brigade, Sniper Elite 4, Beam.NG, and Eve Online.
  • The Bus and Army General are now playable.
  • Support adjusting brightness/gamma in older games like Deus Ex.
  • Fix Xbox controller detection in Far Cry Primal.
Download Proton 6.3-3 from GitHub