Assassin's Creed - Greatest Hits is an action-adventure game for the Sony PlayStation 3, set in historical recreations of the Third Crusade. As a member of the Assassins brotherhood, players control Altair, who fights against the Templars. The game blends stealth, parkour, and combat in an open-world environment. Players explore various cities, uncovering secrets and completing missions. The Greatest Hits edition signifies its popularity and critical acclaim, typically featuring additional content or updates from its original release.