GSC Game World has announced a prequel to the PC game Stalker: Shadow of Chernobyl; Stalker: Clear Sky.

One year prior to Shadow of Chernobyl, a Stalker team reaches the Chernobyl Nuclear Power Plant and triggers a cataclysmic reaction. As the main character, the player takes a key role in events from the creation of the Zone to the events leading into Shadow of Chernobyl.

What’s waiting for stalkers in the opened depths of the Zone? Which new challenges bear in the new territories? Why blowouts continue shaking the Zone? Why did the Zone change? How to remove its instability? Which faction will take the upper hand in the clan opposition? Why did Strelok end up in the death truck? What happened to Strelok prior to that? Was there any other choice to make? These and many other questions will get answered in the official prequel S.T.A.L.K.E.R.: Clear Sky.

The game is currently unsigned by a publisher, but from speaking with them at E3 an arrangement seems forthcoming.

Game details after the jump.

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