From: Hessen, Germany - now living in France
S.T.A.L.K.E.R.: ?? (or maybe that is not an acronym?)
S.T.A.L.K.E.R. stands for "Scavenger, Trespasser, Adventurer, Loner, Killer, Explorer, Robber".
The game "S.T.A.L.K.E.R. - Shadow of Chernobyl" is a non-linear FPS (first-person-shooter) with RPG (role playing game) elements. You assume the identity of an amnesiac "Stalker", an illegal explorer/artifact scavenger in "The Zone", an alternate reality version of the Chernobyl Power Plant and the surrounding area, which is contaminated with radiation and caused strange otherworldly changes in local fauna, flora and the laws of physics. You try to find out more about your past by pursuing another Stalker who knows more about you into the Zone.
I am not a big fan of shooter games, but it is one of the few such games I have really enjoyed - thrilling story, really spooky atmosphere, great freedom of action. IMO even better than Far Cry (the first).