Depends on the game.
Ether Kingdoms 500-1000 dollars.
Nyancat 200-300 dollars
Why do they earn almost four times as much on Ether Kingdoms?
There are more players in Ether kingdoms than in nyancat.
But I'm pretty sure when two new game mods will be released people will transfer to a nyancat.io
What are those mods? Never heard about any new mods in nyancat.