Many online platforms and "exclusive" download links capitalize on the popularity of the franchise by offering fake ISO files. These are frequently: Modded Versions : Older games like Tomb Raider Prince of Persia with "Nathan Drake" character skins.
If you want the "treasure hunter" vibe on your PPSSPP emulator, these official PSP titles offer similar gameplay mechanics (climbing, puzzles, and third-person combat): uncharted 2 ppsspp download for android exclusive