God of War: Ascension is the fourth installment in the popular God of War series, set for a 2013 release. It will be a prequel, supposedly taking place somewhere around the same time as God of War: Chains of Olympus,and before God of War, God of War: Ghost of Sparta, God of War: Betrayal and God of War II.
It will mark a new chapter in Kratos' story, as its leaked Amazon listing notes, "Join Kratos as he seeks freedom, redemption, and the clarity to avenge his family in the most ambitiuous God of War adventure in the series so far."
A day after the leak, the Amazon product page has already been taken down.