Ubisoft officially announces Tom Clancy's Rainbow Six Siege at E3, revealing its tactical gameplay focus and operator-based mechanics.
Tom Clancy's Rainbow Six Siege is released worldwide on PlayStation 4, Xbox One, and PC platforms.
Ubisoft begins releasing Year 1 content including new operators, maps, and seasonal events to support the competitive multiplayer game.
Rainbow Six Siege is included as an official e-sport with the launch of the Six Invitational tournament, marking its presence in the competitive gaming scene.
Ubisoft announces Year 5 content, and subsequently releases Rainbow Six Siege for PlayStation 5 and Xbox Series X/S, expanding its player base to next-gen consoles.
Rainbow Six Siege reaches over 70 million registered players worldwide, showcasing its continuing popularity and competitive success in the gaming community.
An international counter-terrorism unit called Team Rainbow is formed under the command of John Clark to combat global threats.
Rainbow establishes a secure operations base to coordinate its worldwide counter-terrorism missions.
Team Rainbow conducts its first operation to intercept and neutralize a terrorist group attempting a major attack in Rio de Janeiro, Brazil.
Rainbow expands its roster by recruiting specialized operators from various global counter-terrorism units like SAS, FBI SWAT, GIGN, and Spetsnaz.
A high-risk operation to rescue hostages from an extremist group in Paris demonstrates Team Rainbow's tactical effectiveness.
Team Rainbow begins intelligence gathering and counter-terrorism operations against the White Masks, a violent global terrorist organization.
Operators are dispatched to the U.S. Consulate to respond to a hostage crisis initiated by the White Masks.
Rainbow develops advanced siege tactics and deploys new breaching tools and surveillance technologies to counter increasingly fortified threats.
Rainbow launches an intensive operation to regain control over key territories under terrorist occupation in Rio de Janeiro involving elite Brazilian operators.
Rainbow undertakes an operation to prevent a terrorist occupation of its own training and operations base, Hereford.
