Because the PS4 does not have native backward compatibility with PS3 discs or digital downloads, your options are limited: Cloud Streaming via PlayStation Plus Premium : The primary official way to play God of War: Ascension on a PS4 is through the PlayStation Plus Premium
Unlike God of War III , which received a native for PS4, Ascension was left behind on the PS3 architecture. The PS3's unique "Cell" processor makes it extremely difficult to port or emulate games natively on the PS4's hardware. Game Overview: Is It Worth Playing? God Of War Ascension Download Ps4