Five Nights at Freddy's is the 2014 indie horror game series by Scott Cawthon, set inside the fictional Freddy Fazbear's Pizza. Its tense security-camera gameplay made small UI noises like this beep instantly recognisable to players. Clips of the game's sounds spread through YouTube edits, meme compilations and fan soundboards, where the beep became shorthand for incoming danger. Creators still use it to fake out viewers, build tension before a cut, or nod to the franchise in gaming videos.