PlayStation Vita games distributed digitally are packaged as PKG files—encrypted archives that contain the game's data. Each PKG file is protected by a license key that verifies the user has legitimate rights to install and play the content. Initially, Sony used a key format called , a 32-character hexadecimal string. As the Vita's security evolved, however, a more compact and versatile format emerged: zRIF .
Key Features
Released in 2011 as a flagship launch title for the PlayStation Vita, Uncharted: Golden Abyss on Wikipedia was co-developed by with heavy oversight from Naughty Dog. It acts as a canonical prequel to the mainline console series. The game follows a younger Nathan Drake across 34 dense chapters through the jungles of Central America. It was built specifically to showcase the handheld console's dual analog sticks, gyroscopic aiming, and front and rear touch panels.