The game is constructor based.

Posted on Tuesday, September 27, 2016

Now I figured out why, so many starbases are being build. In two there were a lot of planets to colonise on immense with ten players. In three the unmodded insane has only 600 planets with 100 races, but do to hardware restrictions it's more like 40. If you can't build colony ships then you misaswell build constructors.