>>2195383>>2201068>>2201286>>2201482The stalker movie and later video games were based on Roadside Picnic by Arkady and Boris Strugatsky published in 1972. It's a really good read and a great example of soviet science fiction. Ursula Leguin had a lot to do with bringing its attention to the american audience, and she had some great stuff herself like The Dispossessed and Left Hand of Darkness