In BTS normal play now games, will conquered cities ever flip back? I've seen them rioting but I don't remember them flipping. I'm guessing it's just an inconvenience that might leave you open for an attack during a war.
Unless you've got ticked the option to allow conquered cities to flip (which won't be the case in a "Play Now" game), then cities conquered by a nation will never flip back to the original owner. Note, however, that they can still flip to a third party civ if that civ has enough culture on the city tile.
Is cultural pressure the only thing that can flip a city? (and only if you never owned it)
There are a few ways of getting control of a city:
- Military force (very reliable, as long as you know what you're doing tactically)
- Culture (much less reliable, considering that not only do you have to build a city close enough to a rival city and get enough culture to it to get the borders out, but if the rival puts enough units in the city he can completely remove any chance of it flipping regardless of your culture)
- Apostolic Palace or UN vote (requires a lot of work first; obtaining >50% culture in a rival city, getting elected head of the council, spreading the religion to get the votes needed to pass the resolution to flip a city to you, and on top of that you need no one to defy the vote... tricky but plausible)
- Demanding via diplomacy that a city be "liberated" (very rare and difficult to come by; usually as part of a peace deal after a war, but even then it's uncommon)
Those are all the ways off the top of my head. By definition culture is technically the only way of "flipping" a city, because in the general usage in this forum, "flipping" refers specifically to when you culturally overpower a city. So technically it's true that culture is the only way of "flipping" a city, but it's kind of a circular statement.
