Pretty much feels like Valve had a deal with Publishers…
Everyone a few years ago was like “-Publishers are dead, nobody need them anymore!”.
Then bang! We’re back to the days you won’t make any sales if you don’t have a publisher with you 
Valve = 30%
Publisher = 30%
Taxes = 20%
VAT = 20%
UE4 = 5%
LOL Why are people making games to sell for as little as $20 ~ $5?! No idea. Massive waste of time…
Unless you live in China, where you can be comfortable earning as low as $300/month.
Then someone might say “it’s for the art, not for maximizing profits!”.
Yeah sure, let’s see when you try to grow a family out of “for art” argument ^^
The smartest indies by far are the ones outside Steam making games for localized markets, living away from global competition… By far.