Assassin's Creed: Revelations is a 2011 action-adventure video game developed by Ubisoft Montreal and published by Ubisoft. It is the fourth major installment in the Assassin's Creed series, and a direct sequel to 2010's Assassin's Creed: Brotherhood. The game was released on PlayStation 3, Xbox 360, and Microsoft Windows in November and December 2011. A remastered version of Revelations, along with Assassin's Creed II and Brotherhood, was released for the PlayStation 4 and Xbox One on November 15, 2016 as part of The Ezio Collection.