 God of War III was first released in North America on March 16 , 2010 , for the PlayStation 3 . Reigniting the Great War , Kratos is soon abandoned by the Titans , who were only using him to exact their own revenge . Helped by the spirit of Athena who was elevated to a new level of understanding , she instructs him to seek the Flame of Olympus in order to defeat Zeus . Kratos engages the gods and the Titans in an epic series of battles across the Underworld and Olympus and learns that Pandora 's Box is within the Flame . He discovers that Pandora herself is the key to pacifying the Flame and allowing him to open the Box . After finally killing Zeus , he refuses to help Athena assume the role of new patron of mankind and disappears . 
