The game Total War: Shogun 2 has the Rise of the Samurai expansion pack as downloadable campaign. It allows the player to make their own version of the Gempei War which happened during the Heian period. The player is able to choose one of the most powerful families of Japan at the time, the Taira, Minamoto or Fujiwara; each family fielding two branches for a total of six playable clans. The expansion pack features a different set of land units, ships and buildings and is also playable in the multiplayer modes.
What popular game from the Heian period had an expanson pack?