1. Spaceport Income
I was wondering about the spaceport income. I am not sure what exactly is in it therefore I am not able to control is properly. Here is what I know so far or believe to know:
Most spaceport income comes NOT from ship production. I have a game where I produce 0 ships and still get 11k our of it.
It cant be a fee for ships using my spaceport. I mean why would my private ships pay my spaceport for docking when they bring in ressoruces that belong to me and that i use and that I charge them for later when they build ships? That would be stupid

It cant be all fuel cost. My private ships have 1k fuel cost per year. But with 11k spaceport income it doesnt add up at all.
So my question is: What EXACTLY goes into spaceport income and it there a way to check it?
My theory, private ship maintance means they use my spaceport to repair their stuff and consume in the process ressources and that is what they pay. Can someone confirm that?
2. Culture and Planet development are the same?
It seems I cannot find planet developement. I only find the note symbol that says it is culture. But I believe in this game it is all the same, is it?
And then, this culture seems to stop at 110% tops for me. IS that when I have 10 luxus res.?
3. High demand ress cost sometimes less than low demand ress.
Is there a huge lag in price changes??
4. Why do my private companies pay for my mining and gas stations and why do they need to pay for the ressources from the later then? Are they just silly nice companies that hate money???
Thanks
Chris
