This sound comes from the original Five Nights at Freddy's, the indie horror game created by Scott Cawthon and released in 2014. In that game, the office doors are a core survival mechanic, so their audio became closely tied to the series' tense resource-management feel. As FNAF clips spread across YouTube, TikTok and meme edits, the door effect stayed popular because even a very short snippet immediately signals danger, panic and a last-second defensive move. It is often used alongside sudden suspense in horror-themed edits.