Medieval: Total War Viking Invasion is the expansion pack for the revolutionary strategy game Medieval: Total War. Medieval: Total War is a strategy game where battles are played out on a tactical level in real time. Unlike many real time strategy games which have attempted to capture the essance of tactics, Medieval: Total War was a roaring success. Medieval: Total War Viking Invasion adds more of what was great in Medieval: Total War without leaving you feeling ripped off. Note: Medieval: Total War Viking Invasion requires Medieval: Total War to play. Also check out the brand new Rome: Total War