The Rainbow Six website announces Tom Clancy's Rainbow Six Siege is now available, offering the chance to siege the day with the latest installment in the tactical shooter series. The GeForce website offers a Graphics & Performance Guide on how to get the best visuals for the game on their hardware. The game is available on Steam and Steam announces that if you buy the game there before December 14th you get a free copy of Rainbow Six Vegas 1. This offering is being applied retroactively to all who preordered the game as well. Here's the description of the game:

Tom Clancy's Rainbow Six Siege invites players to master the art of destruction. Intense close quarters confrontations, high lethality, tactics, team play, and explosive action are at the center of the experience. The gameplay sets a new bar for intense firefights and expert strategy in the rich legacy of past Tom Clancy's Rainbow Six games.

Key Features
THE SIEGE GAMEPLAY
For the first time in Rainbow Six, players will engage in sieges, a brand-new style of assault. Enemies now have the means to transform their environments into strongholds: they can trap, fortify, and create defensive systems to prevent breach by Rainbow teams.

To face this challenge, players have a level of freedom unrivaled by any previous Rainbow Six game. Combining tactical maps, observation drones, and a new rappel system, Rainbow teams have more options than ever before to plan, attack, and diffuse these situations.