Unity of Command II (809230)

Compatibility Report

• Name of the game with compatibility issues: Unity of Command II
• Steam AppID of the game: 809230

System Information

• GPU: Radeon RX Vega 56
• Driver: X.Org Radeon RX Vega (VEGA10, DRM 3.35.0, 5.4.0-29-generic, LLVM 9.0.1)
• Driver/LLVM version: 4.6 (Compatibility Profile) Mesa 20.0.4
• Kernel version: 5.4.0-29-generic
• Link to full system information report as Gist:
• Proton version: 5.0-7

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-809230.log

Symptoms

Starting game immediately exits in failure within a few seconds, game window does not even get to open, steam client realises and stops showing the game as "Running"

Interestingly (an admittedly older version of) this game ran fine on my Arch Linux build, I can't remember, but may have been running the game without the runtime... But I have migrated to Ubuntu as the 20.04 release stability was appealing...

Reproduction

Installed game, start game

Start with the attached steam-809230.log and the listed Proton, Ubuntu, Mesa, kernel, and GPU details, then reproduce the failure by launching Unity of Command II from Steam. Done means the game no longer exits immediately and reaches its game window under the reported environment.