S.T.A.L.K.E.R.: Clear Sky - Coming to Steam

GSC Gameworld and Valve have announced that S.T.A.L.K.E.R.: Clear Sky will be simultaneously released on Steam and retail (you'll recall GSC split with THQ, so their retail plans aren't clear), although no date is clear.  Blue's contacted GSC Gameworld to clarify the original Q1 release date but didn't receive a reply.

You can also grab five new screens at the official site.