Sid Meier Civilization 6 adds 6 types of city-states that have a certain value and can give you a bonus if you establish friendly relations with them: military, political, economic, trade, religious and scientific. Cooperation with cities is too important for your civilization, so try to please them. There are also 19 civilizations in the game, for which you will have to develop. Let’s say more, Russia and Japan fundamentally hate each other, and each nation will have its own building, which also brings certain bonuses.
By the way, Sid Meier’s Civilization has always been a game where you have to think and remember a lot of information. Individual wonders of the world, a landscape that contributes to an increase in resource extraction. Unique units available only to one civilization and war until the end of days, right up to the day of the development of the atom and kinetic energy. Be careful, opponents have learned to hide progress!
There is a version like a pirate