Not Found
Could not acquire information for App ID: . This can happen if a game was removed from the store.Works fine.
Music cuts out after a while, but I'm pretty sure it happens on Windows too.

4.21-GE-2 GloriousEggroll
I used Proton 4.21-GE-2, which for some reason works, but 4.11-11 does not. You no longer need the launch option PROTON_NO_D9VK=1
as DXVK and D9VK have been merged into one project. I'm not sure why 4.11-11 didn't work for me, but oh well! To install:
- Download the archive from the GitHub link above
- Make a folder in
~/.steam/steam/
calledcompatibilitytools.d
- Extract the folder in the archive to the newly created folder above. Note: The archive will extract into a folder automatically, so there is no need to extract into or create a subfolder
- Restart Steam, then select the game, click on the gear icon on the far right and go to "Properties"
- From here, tick the bottom box that says "Force the use of a specific Steam Play compatibility tool"
- Select "Proton-4.21-GE-2" from the dropdown
- Launch the game!
Later versions of Proton with more up-to-date libraries should work, but for now use this custom version of Proton to get up and running with the game.
- Game will show a black screen if using Proton 4+, as another report mentioned the game won't work. However, using D9VK, the game does work! Your launch option string should now look like
PROTON_USE_D9VK=1 %command%
Game audio stops after a while, but this is probably a bug with the game and nothing to do with Proton. If you know this game, then you'd probably assume the same...

Simple game. Game works with Proton 3.7-8. Game doesn't work for me with Proton 4+.