Monarchs provide a way to immersively moderate the game in a realistic way without ever breaking the historical role-play. They are also a source for special rewards for gamers. But mostly, as heads of state they are the banner every citizen of a nation gathers beneath.
Competent government, friendships, alliances, bribes, blackmail and corruption, they might all be tools to gain power, keep power or influence those that hold power. That is the nature of politics, it’s a dark game that can played best by those of cunning.
Gamers are categorized into two classes, the commoners and the nobility. Commoners are the free-to-play gamers, nobility are the paid subscribers.