Assassin's Creed is an action-adventure video game developed by Ubisoft Montreal and published by Ubisoft. It is the first installment in the Assassin's Creed series. The plot is set in a fictional history of real world events and follows the centuries-old struggle between the Assassins, who fight for peace with free will, and the Templars, who desire peace through control. The game primarily takes place during the Third Crusade in the Holy Land in 1191, with the plot revolving around the Secret Order of Assassins, based upon the Hashshashin sect.

The player is in reality playing as a modern-day man named Desmond Miles, who, through the use of a machine named the Animus, is allowed the viewing and controlling of the protagonist's genetic memories of his ancestors, in this case, Altaïr Ibn-La'Ahad, a member of the Assassins. Through this plot device, details emerge of a struggle between two factions the Knights Templar and the Assassins, over an artifact known as the Apple of Eden, an ancient artifact used to control minds.

• Assassin's Creed