I would like unhappiness to be a little more important in game. I always find that I am unhappy in the late game, but I always have money to spam units and buildings to compensate for the unhappiness penalties. But I think that if your nation is below -10 unhappiness, then there should be a count down or something indicating when a puppet or occupied city will gain independence. It would be a nice way to motivate me to realize happiness, and I am sure there are other players who just forget about happiness in the late game.
Ex. You have -25 unhappiness after a long conquest spree. You have made 3 annexes, all still occupied, and 4 puppets. The barbarians come as usual, but then a turn countdown determines when a captured puppet or occupied city will become sovereign and return as a city state of back to their original civ. Your enemy got all his or her cities back because you were stupid enough to disregard happiness.
Ex. You have -25 unhappiness after a long conquest spree. You have made 3 annexes, all still occupied, and 4 puppets. The barbarians come as usual, but then a turn countdown determines when a captured puppet or occupied city will become sovereign and return as a city state of back to their original civ. Your enemy got all his or her cities back because you were stupid enough to disregard happiness.
