S.T.A.L.K.E.R. is A.M.A.Z.I.N.G.

I think its a really cool game too, its tactical enough whilst being fun and not too serious. So you can snipe and use cover and die very easily if you try and play like in your generic 3D doom clone shooter.

Things can look a little grey and flat sometimes, but it makes up for that with the ammount of detail.