Players will have a chance to take control of the Dark Side or Light Side in a galactic campaign in each era, as well as the ability to train the Sith as the Dark Side, or Jedis as the Light Side. The mod includes new heroes, units, buildings, technologies, planets, and weapons. The Ulimate Empire at War mod aims to bring the eras, or periods of time, to the game that were not in the original release of Empire at War.