First Impressions: S.T.A.L.K.E.R.

I finally got S.T.A.L.K.E.R. yesterday. I've been waiting for this game since 2003 but its release was cancelled plenty of times. So I thought this game won't see the light of day and I gave up on it. But here it is now and, so far, I'm unimpressed. The game crashes every 5 minutes, it's almost unplayable. Hopefully, a good tweak for this game and the current patch will fix my problems.