The players incarnate notables desirous of getting rich by sending counselors into the opponent castles.
Unfortunately, there may be not enough space for everyone. You have to find the necessary means (promises, bribes, blackmails) to ensure the best locations in opposing castles to be more productive and thus raise more money.
Of course, the engagements aren’t forced to be respected !
Betraying of course, but remember that short reckonings make long friends!