Clash Royale launched in 2016 as a mobile strategy game from Supercell, building on the world of Clash of Clans with real-time card battles and tower defence. Its intro music became familiar to players through the game's opening screen and countless matches, and it soon travelled beyond the game itself as fans reused it in videos, streams and edits. It remains popular because it instantly identifies the game and sets a competitive, playful tone for any clip about decks, battles or ranked play.