Several different animals, both real and mythological, were made available to play as. One of the additional features that was most commented on was the addition of an easter egg where the player could play in a world ruled by animals.
Holy Fury expanded mechanics for Christian religions, including the addition of sainthood, mass conversion and coronations, as well as improved crusades. Most prominent among these were improvements to religion. Holy Fury added numerous features to Crusader Kings II.
