Operation System Override is live with a complete Ranked overhaul, the new Calypso Casino map, remastered Dokkaebi, and more. Jump in and play now! About Rainbow Six Siege: Rainbow Six Siege is an exciting, new approach to the first-person shooter experience that puts tactical combat and masterful destruction at the center of the action. Lead your team of unique operators through tense and thrilling combat scenarios, and achieve victory through smart preparation and strategic improvisation. Rainbow Six Siege is available now on Xbox, PlayStation® and PC. #R6Siege © Ubisoft Entertainment. All Rights Reserved. Tom Clancy’s, Rainbow Six, The Soldier Icon, Ubisoft and the Ubisoft logo are registered trademarks in the US and/or other countries.