Catan began as The Settlers of Catan, the German board game designed by Klaus Teuber and first published in 1995, where trading resources with other players is the central mechanic. As the game moved to apps and online platforms, short interface sounds were added to confirm actions like trades. Clips of that trading chime later spread to soundboards and video edits, where board game creators reuse it whenever a bargain is struck, even outside an actual Catan match, because longtime players recognise the cue immediately.