Yes, you can certainly build colonies when you reach the "Too Many Cities" limit (512 total cities), because a Colony is not a city.![]()
I can still build colonies, but I don't think that will work, will it? The situation is, there is a continent where I don't have any of my cities. I want to build colonies to get resources on that continent, and I want to be able to trade resources with cities on that continent, even though none of the cities on that continent have harbours or airports. If I could build more cities, I'd build a city with a harbour or airport, so it's connected to my trade network, and I'd connect that city via roads to a colony to connect the colony to my trade network, and I'd connect that city to the roads of another culture to be able to trade resources with them.
My understanding of how a colony works is, it has to be connected via road to one of your cities. Is that correct? If I don't have any cities on that continent, I can't do that. But I've never used colonies before. Are you saying I can just build a colony and it's connected to my trade network automatically, even if I don't have a road connecting it to one of my ciites?
So, the question is, how do I do it? Could I connect the colony or the other culture's trade network to my trade network by building an airfield or some other worker improvement? Or is a colony automatically connected? If not, is there any way to connect that continent to my trade network even though I don't have any cities there and none of the computer cities there have harbours or airports?