Ultimate Custom Night launched in 2018 as a free standalone spin off of Five Nights at Freddy's, created by Scott Cawthon. It lets players build custom nights against fifty animatronic characters, mixing survival mechanics with the series signature jumpscares. Clips and sounds from the game spread quickly through YouTube, Twitch and meme edits, where its tense audio became shorthand for horror gaming. The sound remains popular because even people who never played instantly recognise its creepy, playful threat.