with unique three-player co-op missions, in which you and your team face off against evolving enemies from outer space - the archaics. Each raid on the contamination zone where the aliens operate is different, thanks to dynamic variables and unpredictable, deadly challenges. If you want to survive, you'll need to plan, work with your teammates, and coordinate your tactics.• Play alone or with friends on any platform.• Invite two friends to play with you for free for 14 days with Buddy Pass.• Includes 20 Operators, over 25 REACT gadgets, 13 mission types, and 12 large, dynamic maps.• Test your skills with four customizable difficulty levels and a thrilling endgame ranked mode.• Tom Clancy's Rainbow Six® Siege players receive four exclusive, epic gear sets in both games, as well as instant unlocking in Tom Clancy's Rainbow Six Siege 18 operators from Tom Clancy's Rainbow Six Extraction.