You have Sumerians on your STEAM wish list. I've now played the game for 17 hours following the campaign, which acts as a tutorial. Then I get stuck in a bug that causes the builders to freeze in one place and everything to stagnate. You understand that further building is no longer possible.
I sent the developers a bug report, in which they found nothing. Now they ask for a saved file to email or to Discort.
Since I don't know how to do this, it's considered unplayable for me.

The game is very similar to Caesar 4 in combination with Children of the Nile.
I suggest trying that one first and not burning your fingers yet with the Sumerians.

Okay. Say hello to dixiechow if you speak to her -;)