Overlords adds interesting mechanics for one of the most forgotten mechanic of the game: Subjects. It was a great and necessary dlc, adding better ways to play as a subject and as a overlord, adding more flavor. The mechanics are good, and they also added the enclaves that are a cool small addition, but are basically boosts with a little of lore behind., except for the mercenary enclave thar is really a mechanical change. Overall good dlc but nothing out of the ordinary for a paradox game.