Square Enix have made six of Larar Croft's old games available on Steam, all the way from the original Tomb Raider, through Tomb Raider 2 and 3, Tomb Raider: The Last Revelation, Tomb Raider: Chronicles, and Tomb Raider: Angel of Darkness. Obviously some of these are examples of Lara's darkest days in video gaming (I recall Angel of Darkness as rather horrible). Nonetheless they are all available for £6.99. Get them if you feel the need have the full story leading up to next year's reboot.