Dude, I mentionned CCP Games to you (the guys that make EvE Online) and even them generate more revenue.
There is nothing wrong with being a niche company in itself, only you will remain niche as long as you don't cater to the crowds. Which makes sense - people don't purchase products they don't like.
I won't even mention the fact that the Japanese video games market is worth in the tune of 500 BILLION yen. I think you can divide 5 by 500 yourself, and see what the approximate market share of that amazing company is, even in its own homeland.
EvE online is a completely different genre, that is what I meant. You are grabbing A and B and saying they are the same. When in reality, they are not.
When comparing straight up sales intervals of From Software to ALL major competitors, they fall in the middle of the pack. Also, why stick solely to foreign sales? Domestic sales of Dark Souls and Bloodborne have been high as well.
It is different in gameplay, but not in its market positioning - it is a niche game geared towards a limited community of players. Quite logically that means a very limited revenue.
"Middle of the pack"? They are not in top 25 for sure, and probably not even in top 100. Sure, if you include all the steam-selling companies, they'll be in the middle of the pack, but let's remain serious for a bit.
"Also, why stick solely to foreign sales?" --> I'm not. 5 billion is their global sales volume according to their own website.