I've played a couple of games now where around the middle of a long domination game (standard speed, but on a huge map with 12 total Civs), my happiness just tanks. In the game I'm currently playing, I conquered a rival Civ (which had enveloped another Civ themselves earlier in the game) while I had a net happiness of ~100 (when the war, which lasted perhaps 10 turns, started). Twenty after the war's ended, my happiness is sitting at -250 and falling, I've fought off three waves of rebels, and my progress as a civilization is paralyzed while I laboriously work on producing the buildings necessary to reduce (or, rarely, meet) the rapidly worsening needs of my many cities. I understand (or thought I did) how various needs grow, but for the second or third time trying for a domination victory with CBP, I've passed some sort of tipping point that's suddenly thrown my empire into a dark age with no end in sight. Does anyone have some insight they'd like to share?