Wow, really cool! I tried using Paint to draw the map but the ambience cuts out when changing tab so thats no good. So pen & paper it was! While Exploring and drawing the map, I was counting how far my oxygen could take me, otherwise backtracking. good for a labyrinth ^^ One time I missclicked my direction and immediately felt tense cuz I didn't if I could make it back to safety. Cool idea for game :)