Prepare to accept history's greatest challenge - build the world's most powerful empire over a span of 6,300 years, reaching from primitive history to the future realms of science-fiction. Take your place beside history's greatest leaders as you master the intricate strategies of governing, warfare, diplomacy, trade and science. Sow the seeds of an empire as you cultivate a tribe of settlers in 4,000 BC. Hear the cheers of approval as you lead your flourishing society into the future of 2,300 AD.