Great game overall. However, there's a fatal flaw which is that when I launch the game from GOG and start playing in intervalls of 30 seconds or so the game just totally ignores my mouse or keyboard input, and "Jack" just runs forward like an idiot and falls to his doom. This in my opinion makes the game unplayable and should be fixed immediately. Further, the game crashes in lvl.14 and displays an UE4 fatal error message, which is really annoying because I have to start the level from the beginning again after it crashes.