Yes — co-op and PvP. Tom Clancy's Rainbow Six Siege is a tactical & milsim game released in 2015, 84% positive on Steam (1,398,584 reviews), with 51,847 playing right now. Free on Steam.
Tom Clancy's Rainbow Six Siege is an elite, tactical team-based shooter where superior planning and execution triumph.
Steam tags: FPS, PvP, Multiplayer, Tactical, e-sports, Shooter, Competitive, Online Co-Op
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Tom Clancy's Rainbow Six Siege is one of them — then helps you pick tonight's game with a weighted roll or a bracket.
Compare our libraries Steam store pageTired of Tom Clancy's Rainbow Six Siege? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.
Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; updated 2026-09-08. Powered by Steam — not affiliated with or endorsed by Valve Corporation.