Kingdom Wars 2: Battles - The Undead Rising Protection : Steam
contains latest updates v1.6 too
KW2B brings massive sieges and survival to medieval strategy. With epic storytelling and complex crafting, fight to survive through brutal siege combat, fighting each other, and hordes of Zombies. With complex castle and city building, beautiful, yet gory battlefields await in episodic story campaign, mmo skirmish and coop modes.