1. Colony Management - Needed when you control both mature and new/immature planets.
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If you take a look to the following link http://www.galciv.com/forum.asp?BID=GF&id=132094, you will see that there are some concerns about specializing planets/ avoiding wasting BC with building nothing on some planets while building critical improvement on others.
Lately, I have found that we have a dumb spying system, even when it is supposed to give advanced insight where you are supposed to knew everything about the AI
- you don't know the starbases locations in the general map if there is FOW. But you can find them in the diplomacy screen
- when conducting diplomacy, you don't know what are the modules implemented on starbase. And the funny thing is that this information is available on the general map is there isn't any FOW on the starbase
- you can't spy the minor AIs. Which is annoying when you are searcing who are their trading partner.
- you don't have access to planetary screen for the AI worlds. For information, this feature was allowed in ALpha Centauri. Even if you are supposed to know everything, we don't know what is built (military and social) on the AI planets. It could be nice to know (with enough spying) which planets are currently building Trade Goods/Wonder. And maybe with enough spying the ETA on AI's production and research