
gamemoderun %command%
Using proton, it crashes as the game is exited. The very last black screen as it is shut down. Not a big deal, will try other versions of proton as I play.
Linux native client runs fine. Cannot figure out where 3rd party maps go in linux.
Using proton 3rd party maps go here:
//steamapps/compatdata/221540/pfx/drive_c/users/steamuser/My Documents/DG2
Youll have to create the 'DG2' directory in My Documents.
Get maps from : dg2freemaps.com Steam does not support 3rd party maps anymore. When unzipping maps from dg2freemaps, its a folder within a folder. Unzip, then copy over. Launcher will crash if the custom map isnt in the right spot.

Works perfectly out of the box. No adjustments needed
Runs perfectly. No adjustments were needed
Works great out of the box.
-skiplauncher
Had to skip the launcher with -skiplauncher
Game freezes when exiting, needs to be closed from steam overlay. But everything is saved.

Install and play. 0 effort required. No performance issues on late stage mob grinds.
Multiplayer looks for players but never finds anyone to confirm but I also never find players on Windows either. I can't confirm multiplayer works.

Mouse cursor was invisible at the launch of the game. Re-appeared after launching a level.
The game froze while exiting. Had to use Steam's "Stop" button.

They will enjoy it once the game is made stable on Linux.
It used to lock up occasionally. Now it lockes up all the time. Not sure why.