AI in games like civ isn't some unsolved problem. It's just limited by what your computer can do in reasonable amount of time to not get in the way of other thi

AI in games like civ isn't some unsolved problem. It's just limited by what your computer can do in reasonable amount of time to not get in the way of other things the game does. Civ games in general are kind of a solvable problem, because there's little randomness there. So if they really wanted they would make AI so good it would be impossible to win. Whole challenge is to make AI bad enough to be enjoyable. So it's not very interesting from AI science point of view.