No surprises here really. The creators of dwarf fortress are incredibly passionate about their game. It just happened to become successful. The AAA game industry is the exact opposite.
They basically made it while living in poverty because they refused to charge for it for the first 10 years. I donated for a few years and got drawings for my money. Great game and great people.
Reminds me of the glorious thread on the steam community page. Somebody was suspicious of all the sudden positive reviews.
Trying to think what the opposite of that is.
Passionate about being successful. Just happened to make game?