GSC has announced the official release date for the prequel to their acclaimed 2007 shooter. 

From the official website :

GSC Game World, computer games developer, its publishing subdivision GSC World Publishing and Koch Media, a leading marketer of video games, today announced the planned release date for the title S.T.A.L.K.E.R.: Clear Sky. According to the agreed plan, the game will ship August 29, 2008 worldwide. S.T.A.L.K.E.R.: Clear Sky will be published by the games labels Deep Silver and GSC World Publishing.

"The topic of the release date for S.T.A.L.K.E.R.: Clear Sky has created a lot of interest among gamers, press and fans. We’re pleased to announce an exact date for this highly anticipated game now," said Dr. Klemens Kundratitz, Managing Director of Koch Media.

"Our intention to deliver the game simultaneously worldwide is both a challenge and big responsibility to the many fans of the game around the globe. We are looking forward to achieve this ambitious goal in August." - said Sergiy Grygorovych, GSC World Publishing CEO.