What an interesting game... I've never played a game like it! Very fun, although a controller is required (which it might be for the best, since analog control is probably needed for this game!) Works great on Linux Mint 21.3 Cinnamon through Proton, though I needed to enable Steam Input to get my Dualshock 4 controller to work. This is a fantastic game, but there's one thing to mention: the camera can be a bit... wonky sometimes. I do wish that you could use the right stick to change the field of view of the camera...