Wololo comes from Age of Empires, the real-time strategy game developed by Ensemble Studios and released in 1997. Priests use vocal chants while converting enemy units, and the memorable phrase became closely identified with that mechanic. Players carried it beyond the game through forum jokes, remixes, videos, cosplay, and transformation memes. It remains popular because the sound communicates conversion almost instantly, while its unusual pronunciation is easy to imitate and recognizable to generations of strategy game fans.