Assassin's Creed Revelations is action-adventure video game developed by Ubisoft Montreal and published by Ubisoft. It is the fourth major installment in the Assassin's Creed series, a direct sequel to Assassin's Creed Brotherhood, and the third and final chapter in the Ezio trilogy.

The framing story is set in the 21st century and features the series protagonist Desmond Miles who, after falling into a coma during the events of Brotherhood, must relive the memories of his ancestors through the Animus device in order to awaken and find a way to avert the 2012 apocalypse. The main story spans the years 1511–1512, and follows an aged Ezio Auditore da Firenze as he travels to Constantinople to find five keys needed to unlock a vault built three centuries ago by Altaïr Ibn-LaʼAhad. While searching for the keys, Ezio becomes caught in a feud between the Ottomans and the Byzantines, and discovers that the Templars are also attempting to unlock Altaïr's vault and its secrets.

• Assassin's Creed Revelations