ICO's contributed to practically every game since its release.
If you have a PS2 or ps3, you can play the game.
for most optimal on ps2, though, you should play the jpn/pal version, as the north american version released first and is therefore buggy.
for ps3, it's sold as part of the ICO and shadow of the collosus collection, where the former is based on its jpn/pal version.