Weird thing. I ran this game a year ago without problems. I have the same installation on the same hardware but now after it launches I have to keep moving the mouse or hold keys on the keyboard for the game to actually keep on running. When I stop all the inputs it just freezes in place wherever it currently is (intro video, loading screen, actual gameplay). When I start the inputs again it continues from that point on until the inputs stop and then it freezes again and so on.

Never seen anything like it. Could it be xorg somehow blocking rendering updates to the client window without output events or is it something weird in the game itself? Other games run fine.