The cue comes from the StarCraft games, where it plays as an announcement for the Protoss faction when an upgrade finishes. Players heard it countless times while managing bases, researching technology, and preparing armies, so it became closely tied to progress and preparation in real-time strategy games. As gameplay clips and soundboards spread online, creators began lifting it out of matches and using it as a short, satisfying signal for any kind of completion, and it remains popular because it is instantly recognisable without needing any explanation.