I played S.T.A.L.K.E.R. Shadow of Chernobyl when it came out and I actually thought it was a good game. It was very immersive and quite scary at parts. Even though the gameplay was undeveloped at times and there were lots of bugs, it was still a very fun experience. Clear Sky is a lot like its predecessor, I think it's more of a correction on themistakes made in the first S.T.A.L.K.E.R. The graphics engine is still the same, but it has improved a lot. However, I don't understand how the graphics requirements could be so high. While it does look better, my version of Crysis Warhead, looking a lot better, goes on high, while half the graphics options in Clear Sky were limited for me. The actual gameplay became a lot more developed, with the different faction wars and improved gameplay. However, it becomes ironic how the work on the mistakes of the first S.T.A.L.K.E.R. makes the same mistakes as the first one. Various glitches and bugs: I managed to fully enjoy this game only after a couple of patches. If you were a fan of the first S.T.A.L.K.E.R., and you enjoy shooters, you will probably enjoy this game.