Well i just beat Stalker and i couldnt believe how satisfying the ending was. I went for the best ending which was Strelok shooting up the green tank thingys (couldnt really understand what those were) and "The Zone" dissapeared and Strelok fell asleep in the sun laying on the grass. I loved that game and cannot wait for the prequel that is being released in march. Hopefully it will shed some more light on the story about how "The Zone" came to be.