Hi, really fun game! A bit hard, but good idea and implementation
Bug report: unfortunately on linux the game looked not so exciting as on screenshots - all textures had one solid color :(
Also I'm not sure if it's intended or not, but for me vision distance is too low. There are often situations, when you are in really bad position and it's unpredictable :( Or I see a small tunnel which later turns out to be a small "pit" in a wall. Probably it's related to texture issue