Interesting question. Let me compare to the Czech Republic.
EDIT: It is also Slovak forum so it goes for Slovakian Republic as well, I believe
Few years back there were attempts to make a stable community on one of the Czech forums whose other half was shared by Minecraft enthusiasts, and it didn't exactly work out. From time to time someone would ask about strange behaviour of the game and that was, some time later, explained as a bug or mistake on the part of player - all this on a small forum where responses took some time.
If I were to pick a single most popular thread on those forums back then, it was Czech Let's Play dwarf fortress, where viewers could actually understand, what was going on on the screen. Even with the basic knowledge like that, the people there were unable to progress in the game any further, because they wouldn't be able to dig through wiki, through bug reports and through forum. I have yet to see a Czech community fortress. I attempted something like it with my friend, but the stars weren't aligned.
Dwarf fortress is a complex game in English language - many Czechs don't know English well enough to be able to cope with the level of complexity. This is not Starcraft where you learn the keyboard shortcuts and what every unit does simply by playing it for a while.
Dwarf fortress has its own niche market, so to speak. It's players are specific sort of people. If you can't speak the language, you won't find big enough community that can provide you with necessary background needed to play the game, which is major part of the DF experience. You won't get to take part in community game, you won't get to take part in !!SCIENCE!!.
Mind - I like the complexity, myself. Nowhere else have I learned so much about geology as in this game, or the English equivalents of animal names, but along with the language barrier it can be a problem for some.