Counter-Strike: Source (240)

Compatibility Report

• Name of the game with compatibility issues: Counter-Strike: Source
• Steam AppID of the game: 240

System Information

• GPU: NVIDIA Corporation NVIDIA GeForce GTX 1070/PCIe/SSE2
• Driver/LLVM version: 4.6.0 NVIDIA 470.63.01
• Kernel version: 5.13.12-1-MANJARO
• Link to full system information report as Gist: https://gist.github.com/l-t-s/59a16116839480ce64318eb9cc3e48ed
• Proton version: 6.3-6 (and other Proton versions)

I confirm:

• that I haven't found an existing compatibility report for this game.
• that I have checked whether there are updates for my system available.

steam-240.log.gz

Symptoms

Game launches in "insecure" mode, and the -secure flag has no effect.

Reproduction

1. Force the use of a specific Steam Play compatibility tool on Steam and select a Proton version (6.3-6), so the Windows version of the game is run instead of native.
2. Start the game.
3. Find a VAC protected game in the server browser.
4. Attempt to join the server.

Start by inspecting the attached steam-240.log.gz alongside the listed reproduction steps and Proton 6.3-6 context. No source file or test is identified in the report; done would require demonstrating that Counter-Strike: Source can join a VAC-protected server in secure mode under Proton.