Parent meant the famous PC game: http://en.wikipedia.org/wiki/S.T.A.L.K.E.R.:_Shadow_of_Chernobyl http://en.wikipedia.org/wiki/S.T.A.L.K.E.R.:_Shadow_of_Chern..

Parent meant the famous PC game: http://en.wikipedia.org/wiki/S.T.A.L.K.E.R.:_Shadow_of_Chernobyl http://en.wikipedia.org/wiki/S.T.A.L.K.E.R.:_Shadow_of_Chern... The background and some terminology of the game ("The Zone", "Stalker") are borrowed from the popular science fiction novella Roadside Picnic by Boris and Arkady Strugatsky and the 1979 Andrei Tarkovsky film Stalker that was loosely based on it, as well as Stalker, the film's subsequent novelization by the original authors.