What about Super 8. Replace the alien with something terrestrial. Was that set around the 80's?
Actually 3 games.Wasn't there a video game that was based loosely on this?I'm writing an article on life as a t(w)een in 1980's Sweden. As I was 16 years old in 1981, I have pretty clear recollections on how it was. I'm still awaiting a reply from Fria Ligan whether there's an interest in the article from their side, or enough background info is included in the core rulebook.
One of the conclusions one can draw from the books and the alternate game settings as suggested by the kickstarter stretch goal, is that the Loop mostly caused local phenomena, at least in the 1980's (things going haywire in the 90's is another story). Thus, I think basing society and history (like politics, culture, fashions, other tech, the world in general, etc) on the real 1980's is the best way to go. I cannot remember any particular Swedish books or movies from that period that would tie or inspire adventures in with the Loop setting, but the old Soviet movie "Stalker" might provide some inspiration. It's ages since I watched it, though.