Three great games. Two brilliant mods. One epic experience! Dive into the Zone with the all-new invisibility modification for S.T.A.L.K.E.R.: Shadow of Chernobyl (1.0005-1.0006), S.T.A.L.K.E.R.: Clear Sky (1.5.10) and S.T.A.L.K.E.R.: Call of Pripyat.