This game is definitely an awesome Middle Ages strategy game with great Roleplaying value because you do not play a nation, but characters in a dynasty. However, what makes this game best are the tie-ins with other Paradox Titles. Like your nation? Then keep playing them in Europa Univeralis VI. Other user-made game saves let you continue your game into Victoria II and then onward to Hearts of Iron and World War Two.

Literally over a thousand years of alternate history gameplay! What other game can give you that?