

Sometimes the game refused to load
Couldn't start game until changing proton version to GE-Proton8-16. Experimental doesn't worked for me.

Mutiplayer works

mangohud gamemoderun %command%
Two cases where I used Alt-tabbing, the game didn't recognize the mouse.
The first few hours of gameplay were unpleasant with the game performing extremely heavily (100% GPU usage, 20-40 FPS in any room).
I performed a clean reinstallation, deleting everything from the game and the Proton prefixs folder. From there, the game started running normally, with 60 FPS stable and GPU usage at ~50%.
Bugs from dropping off the map.
Spoilers ahead:
My friend playing as Peasant. After completing the maze stage, at the moment where he would fall and be stuck for the next puzzle, twice he drop out of the map.
Me playing as Lord. At the beginning of the maze stage, there is a door behind which it was possible to interact, and it threw me out of the map.
Multiplayer worked flawlessly, without connection issues.
Tested with Proton-Experimental [bleeding-edge] and GE-Proton8-6 in various game settings (Ultra, High and Medium).
After the reinstallation, played with Proton-Experimental [bleeding-edge] in High settings with 1080p fullscreen in 60 FPS stable.

The person I am playing with is ready to quit, so I am 100% certain of this assessment.
Tremendous input lag. You move with WASD; tapping might make you run forward for several seconds.
The aforementioned input lag. It wasn't just this one keyboard / mouse.
There are some levels that will not be possible to complete due to the input lag. I know this for certain because I know how to solve all the puzzles in the game, and there will be several spots where we will not be able to progress past certain points, due to the need for precision.
Works perfect.
Plug-and-play. No tinkering
Haven't had any voice chat issues
Voice chat don't work.
The game plays great, but the in-game voice chat not working is kind of a bummer as it is an important part of the game.
In-game voice chat doesn't work. I had to use an external application for voice chat.
Worked flawlessly, except for the aforementioned audio issue.
Problem with vsync

Played with Proton 5.0-10. Doesn't work with Proton 5.13-2 Switching out from the game (Alt+Tab) and back works fine
Make sure you test switching out of the game before you start playing . The game might crash on losing focus.
Escaping from full screen to another window and then coming back to the game hung the game. Had to force quit and restart it.


Initially the config set the resolution to 1920,0, 1080,0 which was then intepreted as 1920x0 causing the game to crash on start, after manually fixing the resolution to 1920, 1080 the game started normally.
Was able to create a room using the "invite Friend" option. Voice chat works as expected.
To be able to actually play the game i had to install .NET in the games Wine prefix. This can be done by using the command
"protontricks 677160 -q --force vcrun2017 dotnet472 gdiplus"
With that the game worked normally. With no seen issue. Did a complete playthough with a friend.
