The story of S.T.A.L.K.E.R.: Clear Sky brings the players one year prior to the events of the original S.T.A.L.K.E.R. game in 2011.
A group of stalkers has for the first time reached the very heart of the Zone – Chernobyl Nuclear Power Plant, and brings about a cataclysm on the brink of a catastrophe. An immense blowout of anomalous energy changes the Zone. There are no more reliable and relatively safe roads. The entire levels vanish in the outbursts of anomalies. Stalkers and even expeditions die or end up sealed on the lost...
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