Best first party PS game ever, and why

[Veknoid_Outcast]

Ico.

It's just pure magic. It's one of the most immersive, evocative, and atmospheric games I've every played, thanks to its crumbling, ancient setting and masterful use of space and emptiness, but what I admire most about it is how the emotional connection between its two main characters serves narrative and mechanical purposes. The gameplay is the story, and the story is the gameplay.