CyberWhale
Arcane
Most of those sales were during Early Access when the game was like 8-9$. Also Steam takes a 30% cut
Also taxes (both US and Serbia, probably).
Of course, this is balanced by the fact you can probably buy a nice house in Serbia for USD $35,000.
I think your brain would overheat if you saw any house/apartment price on Balkans.
Every larger city (I'm talking 100.000 or more citizens) has an average price of 1.000€/m2.