When you first install The Hobbit Kingdoms, you will be auto-assigned to a random server, high / low populated.
You can change the server right away by clicking on your name (left-top tab of the UI) and from there click on the “world” tab. You will get a list of servers. Each should have a “create” button. If you click on that button, you will be assigned to that specific server and you can start a fresh city there.
You can also return to your initial city (server) by clicking on the “return” button.
High or low populated realm? If you pick a high populated server, you will get attacked more often than on a low populated server. However, it will also be harder for you to find cities to attack and plunder them for resources.
An advantage on a low populated server is that you basically start fresh and the ranks value are low. If you play on a high populated server, there are already good players with high might value.
I would always pick a high populated server, how about you?