Just get ArmA CO and DayZ. It's like Stalker minus the fact that Stalker has so many horrid features and mechanics.
>DayZ, a mod which provides a realistic representation of a zombie apocalypse in the form of a game.
>STALKER, a game which involves an alternate reality in which the Chernobyl reactor blew up a second time and did some really crazy stuff.
>Either of them are like each-other in any way other than the fact that they both have guns and are both technically apocalyptically themed games.
Come on now Extrude, that's bullstuff