Rotten Flesh is a horror game about the player trying to find their dog Roy after he ran into the sewer unexpectedly, the players job is to simply find the dog. There is a lot of corpses, mannequins, boxes, unusual activities and rats. The player had an oil lamp and medical bottles can be found around the large sewers along with a handgun, oil bottles for their lamp, handwriter and hiding spots. The entity is a inhuman creature that desires to be human and uses its victims skin to make it good.