S.T.A.L.K.E.R.: Clear Sky will be delayed "a few days" from its expected release on September 5. We've gotten indications about this and attempted to get a confirmation from GSC Game World, and while we received no reply, Shacknews confirmed the delay with publisher Deep Silver. What we can add is a report we got from a retailer who says the boxes were recalled from the distributer when it was discovered they did not contain CD keys.