You can't say "ground-breaking first person shooter" without mentioning the Half-Life series in the same breath. Since its initial release on the PC in 1998, the series has garnered overwhelming critical acclaim as well as commercial success. Crowbar-wielding Gordon Freeman fanboys have been frothing for Valve's next concoction – Half-Life 2: Episode 3 – for over a year. When E3 came and went with nary a whisper about the next installment, it stung like a headcrab bite. Good news is-Episode 3 is still in the works. The bad news: Half-Life 3 is a few years off.