S.T.A.L.K.E.R.: Lost Alpha is a standalone Modification based upon the S.T.A.L.K.E.R.: Shadow of Chernobyl game originally developed by GSC. As a standalone game, the most obvious difference from Shadow of Chernobyl is the sheer immensity of the Lost Alpha Zone in comparison. Many previously cut levels have been re-introduced such as Darkscape and Dead City where salient plot-lines are executed …