Empire Earth: The Art of Conquest includes three new single-player campaigns set in ancient Rome, the Pacific Theater of World War II, and Asia in the 24th century. In addition, each of the 21 pre-designed civilizations in the game gains a unique special power, building, or unit. Examples include: the Kingdom of Italy's Metallurgy power, which allows them to pay building costs with gold or iron interchangeably; Great Britain's S.A.S. unit will be able to plant demolitions and swim across water; and the United States' market building will allow that civilization to trade abundant resources for scarce ones. In Empire Earth: The Art of Conquest, gamers can become the greatest conqueror of all time by creating, building, and leading a civilization to transcend the ages - from the discovery of fire, to flight, to the next frontier: space.