Empire Earth is a 2001 real-time strategy video game developed by Stainless Steel Studios and released on November 23, 2001. It is the first game in the Empire Earth series. The game requires players to collect resources to construct buildings, produce citizens, and conquer opposing civilizations. Empire Earth spans 500,000 years of world history, which is divided into 14 epochs, beginning with the prehistoric age, and ending with the nano age.