Wooden floor creaks are a staple of horror and thriller sound design, long used in films and games to signal an old building, an unseen presence or a character moving quietly. Online, the effect has become a go-to clip for YouTube creators, TikTok editors and streamers who need instant atmosphere without dialogue or music. Its appeal comes from familiarity: almost everyone recognises the sound of an old floor, so a single creak can tell viewers to expect something scary, secret or surprising.