If game is alt-tabbed it freezes showing a black screen which requires a game restart in order to fix.
Due to the inability to alt tab or do anything that isn't to do with the game, it basically forces you to only do one thing. This issue on a puzzle style game is a hinderance to playing as many times you will get stuck and rely on hints to continue.
I tried lots of other versions for proton, including GE. Only 4.11-13 works to my knowledge.
PROTON_USE_WINED3D=1 %command%
After switching to other application the game hangs, need to restart
Need to add a launch option, otherwise you'll face a black screen
Main menu at a low frame rate, main game runs smoothly
Alt-Tabbing out of the game then coming back will lock the game into a black screen permanently.
On standard, proton shows a black screen and a version of the game below. Therefore, for the game to work in the properties, you must enable PROTON_USE_WINED3D=1 %command%
If the game is minimized, then after expanding it gives a black screen.
The main menu of the game shows only 10 fps. In the game itself, the breakdown is 25-55. But since the game is not denominational, this is not critical.
Newest Proton 5.0.9 does not work, game opens but screen is glitched. Proton 3.7-8 works fine
Heavy artifacts (vertical stripes) / Out of box with Proton 5.09
Without Wine D3D I had only black screen with v1.01 written in the left corner
Low FPS in menu and inventory
Game works but has some minor perfomance issues. At some locations framerate dips below 60 fps and in main menu it is 25 fps. This is rather surprising considering low system requirements.
Just works
nothing