in here you have to choose a year of start,scenario of action,for example:Kaiserreich,What If Germany Won WW2,and etc and ofc,you need to choose a country,when you do so you can attack,ally,trade and etc with other countries and talk with them,for example,you need to talk with them to ask them to help your economy,or help in war,or ask for trade and etc and you can for old countries like Roman Empire,Ottoman Empire or Polish-Lithuenian Commonwealth

So what do you pick?