I know that it's a very rough estimation but let's see :
- Around 2 millions dollars from Kickstarter
- An unknow amount from steam (Early Access).
We don't know how much from Steam, but at least we can try to estimate it. There is a way to estimate those sales using the number of review :
You must be registered to see the links
View attachment 1123973
I think I can use this data of 41 sales per review, since as I said before, it's still a rough estimation.
Game has currently 6094 review.
Price of the game is set at 30 $. I don't know if price is the same for each country (I think no) but still, most buyers comes from Europe / USA.
So we can estimate the number of sales at nearly 250 000.
Which give us an income of nearly 7 500 000 $
minus the 30% steam commission : 5 250 000 $
So with Kickstarter + steam sales we have something like : 7 250 000 $
Well, fair enought, it's not 10 millions (I said this because I used anoter "sales per review" ratio, which seems to be outdated, now it's more accurate.)