Five Nights at Freddy's 2 was released in 2014 by Scott Cawthon as the second game in the horror series, where players survive nights monitoring cameras in a pizzeria. Its ambient tracks were designed to fill the quiet between animatronic attacks, using ventilation and room tone rather than music. Clips of the gameplay spread widely on YouTube in the mid 2010s, and the ambience sounds were later reused by fans in edits, fan games and horror memes because the hum alone signals the FNAF setting instantly.