Tom Clancy's Rainbow Six Siege
(often shortened to Rainbow Six Siege)
is an online tactical shooter video game developed by
Ubisoft Montreal and published by Ubisoft. It was released
worldwide for Microsoft Windows, PlayStation 4, and Xbox One on
December 1, 2015. The game puts heavy emphasis on
environmental destruction and cooperation between players.
Each player assumes control of an attacker or a defender
in different gameplay modes such as rescuing a hostage,
defusing a bomb, and taking control of a capture point.
The title has no campaign but features a series of short
missions that can be played solo. These missions have a
loose narrative, focusing on recruits going through training
to prepare them for future encounters with the White Masks,
a terrorist group that
threatens the safety of the world.