If you’re a fan of video games, specifically PC games, you most likely have played Half Life. If you haven’t, it’s a sci-fi first person shooter released in 1998 by Valve, and one of the most important video games in history. Here’s the short version: you play as Gordon Freeman, a physicist in a high tech protective suit, who survives a freak accident in the Black Mesa research facility that results in extra-dimensional creatures infesting the complex. You then fight your way out with a variety of scavenged weapons.