Is There a Difference Between Old World and Sid?

The game uses province systems, where you can build one city in each province. This is like endless and which a amplitude was amplitude's previous map based forx game. It doesn't do t i by province, but there are only a few places that you can build cities in. The provinces are set at the start of the game. And it effectively puts like a speed limit on the game. There are certain amounts of expansion that you can do, and there are certain amountsof expansion that you have to do.