These are "fake-signed" files typically created by dumping a retail game or update. They are unencrypted and designed to run on consoles with
can convert standalone PC games (specifically those made in GameMaker) into installable PS4 PKG files. games ps4 pkg
: For non-jailbroken consoles, the only "PKG" files you handle are those automatically downloaded via the PlayStation Store from discs, or are you trying to fix an error with a specific PKG installation? These are "fake-signed" files typically created by dumping