There is no official game for the PlayStation Portable (PSP). The title you are likely referring to, Uncharted: Golden Abyss , was released exclusively for the PlayStation Vita
: Includes the first three games remastered for PS4, with a total install size of approximately . Uncharted: Legacy of Thieves Collection Uncharted Psp Iso Download - Collection - OpenSea
The Uncharted series, famous for its cinematic action and archaeological mysteries, made its portable debut through with Uncharted: Golden Abyss . Platform : PlayStation Vita (Not PSP). There is no official game for the PlayStation Portable (PSP)