A disturbing survival horror, influenced by escape room mechanics. Inspired by true events, award winning Do Not Open is a tragic story about one man's battle to retain sanity and fight to shut out the voices in his head. Under immense pressure in a terrifying and oppressive environment, Michael J. Goreng, an infamous zoologist and epidemiologist is trapped within a warped version of his own house. His wife and daughter are in severe danger. Escape the house whilst dealing with a mysterious paranormal threat, stalking you and your family. The pressure is intense as a clock in the bottom corner ticks down to zero. The clock stops. You must get out of the room. NOW!

If you can get past the stupid maths puzzles there is a great experience hiding in this game.