Even with so many open-world games, some of them stand out more than others. Jak 2A promotional image of Jak and Daxter from the game Jak IIThe sequel to Jak and Daxter, Jak 2, grew up to become one of the best open-world games made for PlayStation 2. Spider-Man 2 is certainly one of the best open-world games on PS2. OkamiOkami is one of the absolute best games released for PlayStation 2, and while it is not fully open-world, it features open-world sections that allow you to explore almost seamlessly. Of all the open-world games of the PlayStation 2 era, Grand Theft Auto: San Andreas may be the most impactful one.