The Nuclear Silo was the Soviet superweapon in Command & Conquer: Red Alert 2, released by Westwood Studios in 2000. Building it allowed players to launch a nuclear missile anywhere on the map, announced by this distinctive launch audio and an on-screen warning to all players. The sound became iconic among real-time strategy fans for the panic it caused in multiplayer matches. Online, it is still used as a universal danger cue, similar to how bomb has been planted became shorthand for an imminent explosion in shooters.