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Warhammer: Vermintide 2 fails to launch on Linux due to Easy Anti-Cheat (Proton Experimental, Nobara)

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ValveSoftware/Proton#9094 · opened 2025-10-11 by 01Zanon01 · updated 2025-10-11 · 1 comments · github
001Zanon01 2025-10-11 github

Description :
Hello Proton team,

I am experiencing an issue running Warhammer: Vermintide 2 on Linux using Steam Play with Proton Experimental. The game fails to launch due to Easy Anti-Cheat, showing an error message about "corrupted files" even though the installation is correct. It seems the game is not currently whitelisted for Linux/Proton.

Steps to reproduce:

Install Vermintide 2 via Steam on Linux (Nobara 42, KDE Plasma).

Enable Steam Play with Proton Experimental.

Launch the game.

The game fails to start, displaying a "corrupted files" message from Easy Anti-Cheat.

Expected behavior:
The game should launch successfully with Easy Anti-Cheat enabled.

System information:

Distribution: Nobara Linux 42 (64-bit)

Desktop environment: KDE Plasma 6.4.4

Kernel: 6.16.4-201.nobara.fc42.x86_64

CPU: Intel Core i5-14400F (16 threads)

GPU: NVIDIA GeForce RTX 4060 Ti 16GB

Driver: NVIDIA 580.95.05

Steam version: 1.0.0.83-4.fc42.i686

Proton version: Proton Experimental

Game ID: 552500 (Steam)

Additional information:

The game works on Windows without issues.

I understand that official support for Nobara Linux is not provided, but I would like to submit this issue so that future Proton updates may include support or a workaround for Easy Anti-Cheat.

Any guidance or testing suggestions are welcome.

Logs / Output (optional):

If possible, I can provide Steam logs (~/steam.log) showing Easy Anti-Cheat messages.

Thank you for your time and support!

Kkisak-valve maintainer 2025-10-11 github

Hello @01Zanon01, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/1528#issuecomment-3393266296.

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