Rainbow Six Siege is a tactical first-person shooter developed by Ubisoft Montreal, built around destructible environments and intense close-quarters combat. Unlike traditional shooters, it emphasizes slow, deliberate gameplay where players breach, rappel, and blow through walls, floors, and ceilings to outmaneuver opponents.\n\nThe game features an ever-expanding roster of Operators, each with unique gadgets and abilities drawn from real-world counter-terrorism units worldwide. Two teams of five face off in asymmetric attack-versus-defend scenarios across a variety of maps, requiring communication and tactical coordination to succeed.\n\nSiege launched with a relatively small content offering but has grown substantially through seasonal updates, each introducing new Operators, maps, and balance changes. Its competitive scene is well-established, with a dedicated esports league and millions of active players across all platforms.