Ico (PS2, 2001)
guessed by TruckOSaurus
As someone who enjoys exploration and puzzle-solving, I loved my time with Ico. Although the game is relatively short, it left a deep impression on me. Playing as a young boy born with horns, players in Ico will explore the crumbling ruins of a derelict castle, solve environmental puzzles, scale walls, and escort a princess to safety. Less concerned with action than its spiritual successor Shadow of the Colosuss, Ico still manages to challenge its players with a number of physical and mental hurdles. It's a one-of-a-kind experience that ranks among the best Playstation games of all time.