Currently, no, unless you have an out-of-country friend who can buy it and gift it to you.
You could offer it as Steam keys on here (like KoboldKare offers it). KoboldKare works for me and I live in Germany. "You will receive a steam key with your purchase". I guess you can raise the prices for those who want to buy the steam key additionally(idk how that exactly works or if you lose money by offering Steam keys). Would love to see it^^
Weird, for me it worked many times before and I live in Germany xD Well the US person bought me the key for KoboldKare and then just gave me the code and it worked(since you can't search the game on Steam Germany). Why would the code be any different though, if I bought it myself on itch.io and enter it on Steam? Probably also works then if I got it myself instead. I also got gifted F.E.A.R keys, despite the first game and the violent second one being banned in Germany and don't show up on Steam store. Websites like instant gaming also offer these F.E.A.R 1 and 2(violent edition) for German folks. Apparently the reviews say that it worked for them? The Steam keys they got from there.