Frankly I don't really want to get into details, especially into financial details. But I can say one thing - as soon as VoidExpanse rating dropped below 70% the sales stopped. And with recent changes to Steam it is even more so now. And that includes Steam Sales (i.e. discounts/promotions), unfortunately. Essentially it doesn't matter what we do, the sales are still 0.
But we are still working on the game and in fact we are going to release a new free update soon (that includes crafting, station management, etc.) as well as an expansion (or call it DLC) with a completely new story line among other stuff (essentially a new game).