Is that how we appear to the rest of the world? Great! We aren’t that big, especially compared to the English-speaking community, but yeah, we are quite active and are one of the most important community, I guess.
Turns out we have on our site an article (in French) about interactive fiction across the world (dates from a few years ago, so might not be up to date). Languages listed: Spanish, Italian, German, Russian, Slovene, Greek, Icelandic, Japanese, Swedish, Danish, Czech.
Also, not really “foreign” since it’s a constructed language that’s not “tied” with a country, but there’s been at least one work in Esperanto.