Did you read Metro 2033? It’s been compared to Roadside Picnic and has spawned a sub-culture, too (exploring abandoned Soviet subways lines and stations)
Metro is to roadside picnick what mcdonalds is to your local high end steakhouse. You can enjoy both, but in different ways. Besides, the st. petersburg trilogy set in the same universe as metro but written by Andrey Dyakov is, in my opinion, far superior to the original series in almost any way (the second book is way too slow). You should give it a shot if you enjoyed the original novels.
Related: "Kontroll" (2003) is the first feature film by Nimrod Antal, born of Hungarian parents, raised in Los Angeles, returning to Budapest for this haunting film shot entirely in the Budapest subway during the five hours every night when it shuts down.
