This release marks the start of a very new approach for the Undead, but one I think you'll like: every city now has a massive negative to food and happiness, and the only way to fight it is to build an Infection, but once you get infected, you get an unbreakable Curse of Undeath! The Curse brings both massive strengths and weaknesses if you are undead, but if anyone else conquers an undead city, the curse makes the city entirely unlivable!