Metallurgy allows paying for units using gold and iron interchangeably.
is the official expansion pack for the real-time strategy (RTS) classic Empire Earth . It introduces significant new content, including a final 15th epoch, new civilizations, and unique special powers. Key New Features Empire Earth: Art of Conquest Expansion
A 24th-century campaign centered on the colonization of Mars. Essential Gameplay Tips Empire Earth: Art of Conquest Civilization Powers Metallurgy allows paying for units using gold and
Introduces Japan and Korea to the roster. including a final 15th epoch