'You can't just take any IP character and throw them in because it just doesn't work. That's where skin collaborations work' — The Doom Slayer is the latest gaming icon to join Rainbow Six Siege and will be fragging his way onto Season 4

The iconic Doom Slayer, the anti-hero from the first-person shooter (FPS) game Doom, has joined Rainbow Six Siege for the upcoming fourth season. Creative Director Jonathan Mills announced the legendary FPS protagonist during the 2026 Majors tournament in Osaka. The Doom Slayer skin will be available for players to access on December 22, allowing them to rip and tear their way through the Siege universe.

The partnership between Rainbow Six Siege and Doom was teased via a short video, which showed the Doom Slayer blasting a moving Rainbow Six drone before the signature guitar riff by Mick Gordon kicked in. This collaboration follows a series of recent similar collaborations, including Halo, Resident Evil, and Tomb Raider skins making appearances in Ubisoft's FPS.

Game Director Chris Budgens expressed his personal love for Doom and how the Doom Slayer's addition to Rainbow Six Siege ensures the game remains focused on well-suited collaborations. He stated that they prefer skins over fully fledged third-party operators to maintain the game's grounded fictional universe. So far, only Solid Snake, the character from Metal Gear Solid, has been included as a permanent canon operator in the game.

The inclusion of Solid Snake has proven to be a successful addition, as he seamlessly fits into Siege's universe and has become a beloved character. Budgens shared that the idea of bringing Solid Snake to Siege was brought up years ago, with Konami showing interest from the beginning. However, they had to reimagine Snake as a Tom Clancy-esque agent to make him work alongside Sam Fisher and other SWAT team operators.

Mills hinted that future collaborations with third-party IP characters might involve fully fledged operators, but they are being cautious about which IPs to work with, as not every character can seamlessly fit into the Siege universe.