Days Gone is a PlayStation 4 exclusive title. It is not available on the PlayStation Portable (PSP) library. Therefore, an actual PSP ISO for this game does not exist. Any file claiming to be "Days Gone PPSSPP" is likely a fake, a modded version of a different game (like GTA Vice City or The Division ), or potentially harmful malware. Elf Ni Inmon O Tsukeru Hon The Animation Full Guide