#4 - Tomb Raider
Although Lara Croft appeared on other consoles at first, she found her home on Sony's machine. The original game, though now quite antiquated both cosmetically and in its mechanics, is still arguably the most atmospheric of the series. We still remember the first time we stepped out of a crevice and saw an entire underground pyramid, or the moment when a velociraptor came around the corner. So ambitious in its realization that Lara was forced to wear her hair in a bob (The PlayStation couldn't manage her ponytail), it's still an enthralling adventure to experience today.