Not a PKG file? RPCS3 "issue"

[Loki182]

Hi people, earlier tonight I wanted to try out God of War 3 with RPCS3, and found out a source to download it. Got it, and when I wanted to install the PKG file RPCS told me that it wasn't a PKG file. So here I am with close to 40Gb of files supposed to be GoW3 but unable to install it for no reason that I can spot. Any ideas fellas?

Here's my source:
https://mpxgame.com/2017/11/29/god-of-war-iii-remastered-ps4-free-download/

EDIT: I tried another source and I've been able to install GoW on RPCS3, but now it's giving a black screen at start with "Fatal Error" when I launch it. Guess it's linked to the problems already listed?