Five Nights at Freddy's 4 was released in 2015 by Scott Cawthon and moved the series from a security office to a child's bedroom at night. Players had to run to the doors, listen carefully, and close them if breathing was heard, making sound itself a core survival mechanic. Clips of that breathing were later shared on soundboards and in fan edits, where the short cue became shorthand for an unseen animatronic nearby. It remains popular because the danger is heard, not seen.