Wow. Finally something different that sucks you right in from the start.
Whats more you can do it by force, or if you are more stuble, by marrying off your sons to those wicked daughters of rival lords. Let them have sons of their own and finally they will inherit enough titles in the realm to proclaim themselves kings! :D
I just love the whole concept. I think what most people will find difficult to gather is that you dont need to conquer things to win. Also if your character dies the game doesnt end. Rather your bloodline continues and the aim is to gain prestige and titles for your descendent so that one day they will be the ruler elite of the country. Its so rewarding being able to dish out titles and rewards to sons, siblings and loyal courtiers. Inbetween doing your godly duty and going off to the crusades for some head bashing!
Furthermore, the way relationships are handled is straightward with the powerful and flexible event system.
This game is a real gem in this age of past paced shooters, bland MMORPGs/rpgs and wrist aching RTS games.
An absoulte godsend!