"Rainbow Six" is a tactical first-person shooter video game series developed by Ubisoft. The franchise is based on the novel by Tom Clancy and focuses on a counter-terrorism unit called Rainbow Six. Players engage in strategic gameplay, often requiring teamwork and planning to complete missions and eliminate threats. The series features various game modes, including single-player campaigns and multiplayer matches. Players can choose from different operators, each with unique abilities and gadgets, enhancing the tactical depth of the game. The franchise has gained popularity for its realistic approach to combat and emphasis on strategy over run-and-gun gameplay.