I know about things like building happiness improvements, choosing civ upgrades (traits or technologies or whatever), razing cities, puppeting cities, etc. The problem is that, as someone who has liked the franchise for a really long time, it just seems like newer games, such as Civs IV, V, and BE, have all gone so far overboard in nerfing war as a means of victory that, no matter what, it is almost never worth it to take even one enemy city, given the overhead. It's not that I don't understand Civ games or don't understand the concept of fostering happiness through different mean; it's just that no amount of producing happiness, health, or whatever seems to make it truly profitable to capture regular enemy cities.
But a lot of people still seem to like to use war in their play styles. So maybe there's a common formula so that your efforts to offset the overhead to expansion will be much more streamlined and effective, and not simply piecemeal. Maybe there is a way to make the numbers add up. So my question here would not be for the specific examples of what you can do, but how can you combine and orchestrate your offsetting efforts in such a way that they are truly effective for, let's say, capturing every city on the planet by game end, for instance?
Best Answer
My experience is with Civilization V.
Domination is very much a viable option, and certainly is a lot of fun. Now, just blindly conquering every city you can get your hands will inevitably make your happiness plunge to oblivion - so you have to be smart about it. In my experience it is absolutely possible to keep your happiness high (20+) even when waging an offensive war and conquering territory.
On to specific tips, some obvious, some might be slightly less obvious.
Before the war:
During war:
Finally, and this is a big one: I never just conquer all enemy cities, I usually focus on their capital and whatever is on the way to that capital, plus any high-quality city I can get my hands on. But I do very much try to keep the civilization alive - and not only that, I try to keep it not too weak, if possible. Why? Because: