Tomb Raider: Underworld (75% Off)
Price: $4.99 (75% Off)
Good old Lara Croft may be poised for a total reboot next year when her new game releases, but the past few titles in the Tomb Raider series haven't been too bad in their own right. All of the post-Anniversary games are available for a quarter of their original price, including Legend and Underworld. If you just can't wait for her gritty reinvention, this is a pretty solid way to get your archealogical fix.