The AI is hopeless
from
GalCiv2 Forums
The AI is so bad at combat - even with all AI algorithms (tough difficulty setting) enabled, version 1.1 beta 4 - that it effectively ruins in the game. How can you take the game seriously when the AI
-sends troop transports to your well defended planets unprotected
-sends single fighters against your fleets
-declares war on you while having defenseless freighters/constructors near your forces
-builds weapon types for which you specialize in its counter (mass drivers when you're using armour)
I really want to like this game, but I give up on it until they do something about the AI. Back to civ 4 for me.
-sends troop transports to your well defended planets unprotected
-sends single fighters against your fleets
-declares war on you while having defenseless freighters/constructors near your forces
-builds weapon types for which you specialize in its counter (mass drivers when you're using armour)
I really want to like this game, but I give up on it until they do something about the AI. Back to civ 4 for me.

