Tom Clancy's Rainbow Six Siege
2015 video game
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| March 2025 | Announcement made that Rainbow Six Siege will transition to a free-to-play model, rebranded as Tom Clancy's Rainbow Six Siege X, set to launch in June during Season 2 of Year 10. |
| 2022 | Ash awakens from her coma and learns Deimos' true identity as Gerald Morris. |
| 2022 | Rainbow recruits retired operative Skopós, who previously worked with Deimos. |
| 2022 | Kali successfully recruits several Rainbow operators to join Nighthaven, causing tension with Harry. |
| 2022 | Keres Legion infiltrates Hereford Base during a training exercise, attempting to break Deimos out of prison and destroy the base. |
| 2022 | Rainbow members Doc, Mira, Rook, and Zero confront and apprehend Deimos. |
| 2022 | Skopós and Dokkaebi assault a Keres Legion safehouse to retrieve intelligence. |
| 2022 | Deimos confronts Harry, showing a video of an ambush that leaves Ash in a coma and kills Harry. |
| 2022 | Following the assassination of tech company CEO Masayuki Yahata, Rainbow squad Ghosteyes conducts strikes against Nighthaven and apprehends Kali. |
| January 2022 | Rainbow Six Extraction, a spin-off game featuring Siege characters, was released. |
| December 2020 | Rainbow Six Siege surpassed 70 million registered players across all platforms. |
| December 2020 | Game released for PlayStation 5 and Xbox Series X/S, expanding its platform availability. |
| February 2020 | The Six Invitational 2020 featured the highest prize pool in Rainbow Six history at $3,000,000, with Spacestation Gaming winning $1,000,000. |
| 2018 | Ubisoft introduced the R6Fix programme, allowing players to submit bug reports and receive in-game rewards. |
| January 2018 | Ubisoft announced 'Outbreak Packs' loot boxes and the Advanced Edition game bundle. |
| August 2016 | Ubisoft launched the BattlEye system to punish cheaters in the game. |
| June 2016 | Ubisoft released the Starter Edition for PC, offering a cheaper version of the game with limited initial operators. |
| May 2016 | PENTA Sports became the champion of the first season of Rainbow Six Pro League by defeating GiFu in the tournament final. |
| March 4 2016 | First Rainbow Six Pro League tournament was held at Intel Extreme Masters eSports tournament. |
| December 2015 | Rainbow Six Siege initially released for PlayStation 4, Windows, and Xbox One, developed by Ubisoft Montreal and powered by AnvilNext 2.0 with RealBlast technology for destructible environments. |
| December 1 2015 | Tom Clancy's Rainbow Six Siege was released, replacing the cancelled Rainbow 6: Patriots project. |
| November 26 2015 | The game's open beta was released, delayed from the original date of November 25 due to matchmaking issues. |
| November 12 2015 | Season pass for the game was announced, offering early access to DLC operators and weapon skins. |
| November 12 2015 | Ubisoft announced the game's season pass, offering early access to DLC operators and weapon skins. |
| September 24 2015 | Ubisoft launched a closed beta for further game testing. |
| August 2015 | Ubisoft delayed the game's release from October 10 to December 1, 2015, to allow additional time for balancing cooperative multiplayer gameplay. |
| April 7 2015 | Ubisoft held a closed alpha-testing from April 7-13, allowing players to test an early version of the game and provide feedback. |
| April 7 2015 | Ubisoft held a closed alpha-testing for Rainbow Six Siege, allowing players to test early versions of the game and provide feedback on servers and gameplay. |
| 2014 | Ubisoft announced Rainbow Six Siege at Electronic Entertainment Expo (E3), receiving four Game Critics Awards nominations including Best of Show, Best PC Game, Best Action Game, and Best Online Multiplayer Game. |
| June 9 2014 | Rainbow 6: Patriots was officially scrapped, and Tom Clancy's Rainbow Six Siege was announced as its replacement. |
| 2013 | At E3, Ubisoft confirmed the game was still in development and would be produced for eighth generation consoles. |
| October 2013 | Tom Clancy passed away, raising concerns about the future of the game bearing his name. |
| May 2013 | GameStop removed Rainbow 6: Patriots from their database and cancelled all pre-orders. |
| 2012 | Gerald Morris betrays and kills his squad mate during an operation, later being declared killed in action. |
| March 2012 | Key development team members including David Sears, Richard Rouse III, Philippe Therien, and Brent George were removed from the Rainbow 6: Patriots project. |
| December 2011 | Tom Clancy's Rainbow 6: Patriots was first announced on the cover of Game Informer magazine, revealing the upcoming tactical first-person shooter video game. |
| November 4 2011 | Ubisoft prematurely announced Rainbow 6: Patriots through a trailer to prevent potential gameplay footage leak. |
| 2010 | Pre-rendered concept for Rainbow 6: Patriots game level was created. |
This contents of the box above is based on material from the Wikipedia articles Tom Clancy's Rainbow 6: Patriots & Tom Clancy's Rainbow Six Siege, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.