While you cannot play it via an ISO in PPSSPP, you can play the real God of War (2018) on mobile using: Cloud Gaming : Services like PlayStation Remote Play Xbox Cloud Gaming

To play a game like God of War 4 (the 2018 Norse reboot) on mobile, you should know that it because it was never released for the PlayStation Portable (PSP). PPSSPP only supports games designed for the original PSP handheld.

Files labeled as "God of War 4 PPSSPP ISO" are often fan-made mods (texture packs) for existing PSP games, mislabeled downloads, or potentially harmful files.

of an older game. These often carry risks of malware or are simply the older PSP games with updated textures or renamed titles. File Size Discrepancy : The real God of War (2018) is approximately 35GB to 70GB . A PSP ISO rarely exceeds

Always use the from ppsspp.org — many “fixes” are simply outdated emulator bugs.