Left 4 Dead series
The Left 4 Dead game series is a perfect entertainment for those who love Halloween and the movies in a 28-days-later style, just like the other 12 games from this list are. An extremely dangerous virus spreads across the world with an unbelievably high speed, and billions of innocent people are going to die. And even those who have an immune to the deadly “green flu” virus still need to be very careful, at least if they want to make it until the next morning.
Left 4 Dead if probably one of the best zombie apocalypses shown in PC games. If you cannot imagine your weekend without killing a couple of creepy walking dead, you definitely should give it a try.