I was pretty good at Civ IV. I was very active here, played and analyzed games, groups, etc. But 6 has me confused. Just a couple questions. How do you conquer cities, early, mid and late game? There arent "stacks" anymore, but whats the secret? Attacking, even early, seems futile. How does religion work? Not really "work," but how do I play without it becoming a problem if I dont want to focus on it.