I posted this one in the wrong forum earlier. Just want to be bring the discussion here
Not sure what causes this behavior, but at Turn 71, the top power (a God-like AI) in the game only has 1 mining starbase, and is severely lacking mining resources. All other AIs are all god-like
It has 10 free administrators to use, and plenty un-mined resources in its zone of control.
Turn 1 and Turn 71 save files can be found here:
http://gofile.me/28Hjp/wuEPygs6J
http://gofile.me/28Hjp/e3ZRqI5Ta
My guess is that AI will not build starbase until all planets have been colonized. But AI should understand the importance of resource-grab.
I hope Brad can shed some light on this.