What pen and paper setting could implement the S.T.A.L.K.E.R. setting ?
Already made one someone should have a PDF
https://1d4chan.org/wiki/STALKER:_The_RPG
checkers
>>50811665
>https://1d4chan.org/wiki/STALKER:_The_RPG
except that it's a broken mess
>>50811536
GURPS.
GURPS does modern gunplay and survival very well. Just stat up a few mutants and you're good to go.
>>50811536
D20 Modern maybe
>>50811971
This. Get "After the End" as well.
>>50812507
STALKER isn't post apocalypse just saying.
>>50812561
No, but AtE has radiation mechanics, plus a lot of post-apoc ideas and concepts are very easily applied to STALKER.
If you strip away all the rest, the Zone itself works much in the same way a post-apocalypic setting would.
>>50811536
Probably the 40kRP system, modded OW or DH.
Switch out Corruption for radiation
Although it seems like your question is asking: "What setting could hold this setting" In which case you'd be looking for any game set in the modern era