What is the name of the Apple-shaped artifact central to Assassin's Creed lore?

The Apple of Eden is the Apple-shaped artifact central to Assassin's Creed lore.

It is one of the Pieces of Eden, advanced artifacts created by the Isu, an ancient civilization that existed before recorded human history in the series. The Apples can influence human minds and project images, making them valuable weapons in the long conflict between the Assassins and Templars.

The first Assassin's Creed game places one Apple in the possession of Altaïr after a mission in Masyaf. Its powers help explain the Templars' interest in controlling the Holy Land. Other Apples appear in later games, and their exact histories vary because the artifacts pass through many hands over centuries.

The name is sometimes shortened to “the Apple,” but “Apple of Eden” is the canonical term used for this class of artifact. It should not be confused with other Pieces of Eden, such as the Staff, Sword, or Shroud, which have different forms and abilities.