Granny is a first-person horror game where the player is trapped inside a creepy house and must escape within five days. The main threat is Granny herself, an eerie old woman who hears almost every sound the player makes. Dropping objects, walking on noisy floors, or knocking things over can alert her, causing her to rush toward the player. To survive, players must move carefully, hide under beds or inside wardrobes, and avoid being caught. The gameplay focuses on exploration and puzzle-solving.