Resistance: Retribution is a third-person shooter for the Sony PSP, set in a dystopian alternate history where players join the fight against a brutal alien invasion during the 1950s. As former British Marine James Grayson, players engage in a personal vendetta against the Chimera, a monstrous species bent on humanity's destruction. Featuring a variety of weapons, intense combat, and a gripping narrative, the game expands the Resistance universe. It blends action, horror, and sci-fi elements, offering both a single-player campaign and robust multiplayer modes.