Hostilities between factions erupt over new territory, artifact fields, and spheres of influence. The fragile balance of forces in the Zone is destabilized by the change of the Zone map. The unstable Zone continues to tremble with explosions as abnormal activity reaches its peak.

S.T.A.L.K.E.R.: Clear Sky takes place a year before the events of the first S.T.A.L.K.E.R. Stalkers and expeditions perish or get stranded in the forgotten lands. The Zone is transformed by an enormous surge of anomalous energy: formerly reliable and reasonably secure highways are no longer so, the landscape is wiped clean by anomalous outbursts, and previously unknown locations appear on the Zone map. Free Download S.T.A.L.K.E.R.: Clear Sky Full version Game for PC, it is the first time, a gang of stalkers approaches the Zone's core, the Chernobyl Nuclear Power Plant, and sets off a cataclysm on the verge of disaster.