: Officially, PKG versions of retail games were distributed via the PlayStation Network (PSN). Because Metal Gear Solid 4 initially launched as a physical Blu-ray exclusive, standalone official digital PKG variants were only introduced much later in the PS3's lifecycle on the PlayStation Store. Emulation and RPCS3: The Driving Force Behind PKG Demand
To play MGS4 using a PKG file, you need a PlayStation 3 with or PS3HEN installed. 1. Requirements A PS3 with CFW or HEN. Metal Gear Solid 4 Pkg Download