[quote=@LordZell]
Why not just make people control either European powers or northern Africa countries. Basically the original map of CK2.
[/quote]

Wouldn't that make England and Scandinavia options? Those would be countries that would only interact with NPCs, which, again, would be hard nuts to crack.

Also, I'm going to add a rule against attacking any nation, NPC or PC, without a Cassus Belli.