Each player assumes control of an attacker or a defender in different gameplay modes such as rescuing a hostage, defusing a bomb, and taking control of an objective within a room. The game puts heavy emphasis on environmental destruction and cooperation between players. It was released worldwide for Microsoft Windows, PlayStation 4, and Xbox One on Decemthe game was also released for PlayStation 5 and Xbox Series X/S exactly five years later on December 1, 2020. Tom Clancy's Rainbow Six Siege is an online tactical shooter video game developed by Ubisoft Montreal and published by Ubisoft.