If you own a PlayStation, you can stream the game directly to your phone.

If you ignore this warning and download a file labeled "GOW Ragnarok PPSSPP," you will likely find one of three things:

The PPSSPP emulator is designed to run games specifically made for the PlayStation Portable (PSP). Since Ragnarök is a modern "next-gen" title, it cannot run natively on PSP hardware or a PSP emulator.

For the actual Ragnarök experience, you’ll need a PlayStation console or a PC capable of running the Steam version. God of War Ragnarök on Steam