Excerpt from [wikipedia]:
“Assassin’s Creed is an award-winning historicalaction-adventureopen worldstealthvideo game developed by Ubisoft for PlayStation 3, Xbox 360 and Microsoft Windows. The bulk of the game takes place during the Third Crusade, with the plot revolving around a sect known as the Secret Order of Hashashin (Assassins). 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 a “Piece of Eden“, an ancient artifact used to control minds. The game primarily takes place during the Third Crusade in the Holy Land in 1191. The game received generally positive reviews, and won several awards at E3 in 2006.”