Nightmare of Decay is an old-school horror shooter with a first-person view. The game takes place in a gloomy estate inhabited by zombies, psychopathic cultists and a horde of other evil spirits. The main character will have to overcome his fears, take his will into his fist and find a way to escape. Fortunately, for this he has a weapon, with which he will have to kill his enemies. However, ammunition and resources will always be running out, and therefore gamers will experience a real adventure in the best traditions of the Survival horror genre.