(like a Steam Deck or ROG Ally) rather than a PSP running an ISO. Official Ways to Play Forza Handheld If you want to play Forza Horizon on a portable device, the official methods include: Xbox Cloud Gaming : Stream titles like Forza Horizon 5 to your smartphone or tablet using an Xbox Game Pass Ultimate subscription. PC Handhelds : Devices like the Steam Deck ASUS ROG Ally can run the PC versions of Forza Horizon Remote Play
These can be played on a real PSP or emulator (PPSSPP). forza horizon psp iso new