Rainbow Six Siege is a first-person shooter game developed and published by Ubisoft. It was released in 2015 for a variety of gaming platforms, including the Xbox One, PlayStation 4, and PC.

The game features a unique and intense multiplayer experience, where teams of players take on the roles of operators from different counter-terrorist units and compete against each other in objective-based scenarios. Each operator has their own unique gadget and abilities, giving the players a variety of options to choose from and make a strategy.

In the game, players must work together to attack or defend a variety of objectives, such as hostages, bombs, and control points, using a combination of weapons and gadgets. The game also features a variety of destructible environments, allowing players to create new lines of sight and chokepoints, making each round unique.

Rainbow Six Siege also features a variety of game modes, including Bomb, Hostage, Secure Area and many more. These game modes keep the gameplay fresh and give players a variety of objectives to work towards.

Rainbow Six Siege is known for its intense and strategic gameplay, as well as its high level of replayability. The game has a built-in system to track the players progress and rewards them accordingly, also the operators and maps are regularly updated to keep the game fresh.

Rainbow Six Siege is also a popular choice for esports, with a variety of tournaments and leagues taking place throughout the year.

Overall, Rainbow Six Siege is a critically acclaimed and highly popular first-person shooter game that offers a unique and intense multiplayer experience, with a variety of operators, gadgets, and game modes to choose from and a high level of replayability, making it a favorite among the competitive gaming community.