"Five Nights at Freddy's 4" is a survival horror video game developed by Scott Cawthon. It is the fourth installment in the Five Nights at Freddy's series and was released in July 2015. The game takes place in a child's bedroom, where players must defend against nightmarish versions of animatronic characters, known as Nightmare Animatronics, that come to life at night. Players use sound cues and limited resources to survive until 6 AM, while avoiding being caught by the animatronics. The game introduces new mechanics, such as the ability to listen for sounds and check behind the player's character, adding to the tension and challenge of the gameplay.