GE-Proton 11-11 released to fix more issues with Windows games on SteamOS /

20 Oct 2026 at 7:36 am UTC | Last updated: 20 Oct 2026 at 12:21 pm UTC
By Liam Squires-Hand

As is tradition, a new release of GE-Proton came with issues and so another hotfix is out with GE-Proton 11-11. We just recently had the bigger GE-Proton 11-10 release which was in our community Proton update round-up article.

Confused on all the Proton versions? Fair enough, there's a lot. Check out our guide on all the different versions of Proton and also how to install GE-Proton. Usually you'll want to stick with Valve's official Proton with Steam unless there's something you really need in GE-Proton for best support.

All the changes in this release are below.

Key Changes

• Fixed games freezing when a video is skipped or closed while MPEG-1 audio is playing through
  DirectShow (deadlock in the MPEG audio decoder, a regression since GE-Proton11-8)
  (#865).
• Fixed MPEG-1 videos played through AMStream showing upside down (a regression since GE-Proton11-1)
  (#863).
• Fixed heap corruption and crashes from video frames that are converted or scaled, e.g. Target Bravo:
  Operation G.H.O.S.T. crashing when entering stage select
  (#864, thanks @aderumier).
• Fixed Easy Anti-Cheat kicking Star Citizen with "Violation 8 - Untrusted system file"
  (StarCitizen_Launcher.exe, error 30033) since GE-Proton11-7. The same issue affects Hunt: Showdown
  (hunt.exe) when launched outside Steam. VKD3D-Proton no longer reads the parent process's executable
  to detect Unreal Engine games (#858,
  vkd3d-proton#3348).
• Removed the Star Citizen native AMD AGS override added in GE-Proton11-10. It was not the cause of the
  EAC violation.
• Space Marine 2 was also reported broken in 11-10, but worked when tested with the above mentioned changes.

Protonfixes

• Star Citizen: install .NET 4.8 for the new RSI Launcher.
• Windows version fixes (win10, win7, etc.) are now re-applied when a later winetricks install
  changes the Windows version. Previously a failed or partial .NET install could leave a prefix on
  Windows XP.
• Added fixes for the BepInEx, MelonLoader and FrostyModManager mod loaders.
• Call of Duty (2003): fixed the game fix not running.
• Ceville: respect PROTON_USE_XALIA if it is already set.
• Removed the unused amdxcffx64 winetricks verb and updated the umu database.

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