With latest Updates (Client, Linux Runtime, Linux Runtime - Soldier) the game starts now using Proton 5.13-1.
Issue reported initially with Proton 5.0-10rc4 or custom Proton forks still persist.
Now just videos are missing, which can be skipped by holding the F key. Otherwise game seems playable now.
proton 5.0x1 2020-10proton 5.13-1x1 2020-10proton 5.0-10x1 2020-10proton 5.9x1 2020-10
Compatibility Report
System Information
I confirm:
steam-401760-5.13-1.log
steam-401760-5.0-10.log
Symptoms
Game shows a gray window and closes.
Reproduction
Install and hit Play.
Comments
Tried with Proton 5.0-10 as well as with custom GE Proton 5.9-GE-8-ST as it was reported working on ProtonDB. Looks like it doesn't work with nVidia. I also tried to place a dxvk.conf into the games directory to fake an AMD card, but no luck.