Mike Goreng is trapped in a sinister and twisted version of his own home. What's going on? Where are his wife and daughter? As a scientist, Mike can't find an explanation for what's happening, but his gut tells him he's in serious danger... and an evil presence lurks in the dark. DO NOT OPEN is a challenging survival-horror game with escape-room type gameplay and a polished atmosphere, where each time the player crosses a door he will be able to find different versions of each area from which he must escape, and whose puzzles and riddles will generate its elements and combinations randomly, making each game a different experience.