I'm not too experienced with the game, but I was wondering about the cultural conquest. I really like the idea of a sort of pacifist way to play but I'm not sure how to do it. I've been playing on "Challenging" and it seems to amount to a planet-by-planet conquest strategy with a lot of spamming starbases around the target planet. Am I missing something? Then I was playing a militaristic game and was about the conquer the very last planet and it gave me a cultural victory, saying I'd conquered with ideas, not guns, when actually I had three huge fleets just waiting for my transport to get there.
Also, at least on challenging it took the AI, in a medium galaxy until I had taken all but 1 and a half civilizations to realize that I was using projectiles and missile defense and they were using missiles and missile defense, so they couldn't really touch my ships, and by that point it was too late. What AI level has the enemies start to effectively counter weapon-types? Thanks!