I started S.T.A.L.K.E.R.
(with Complete mod) last night.
Don't know how long I will stick it out, it looks great, but I also get the impression that it appeals to mostly PC Modding Fetishists (you know, the people who always mod in a backpack in games like Fallout before they can bear to start the game, because how would you carry around all that stuff otherwise?) so we'll see.
I am ready to be impressed.