Twelve civilizations are available, each with individual sets of attributes, including a varying number of available technologies and units. Resources must also be preserved, as no new resources become available as the game progresses, meaning if you cut a tree down, the tree will not grow back. To ensure victory, the player must gather resources in order to pay for new units, buildings and more advanced technologies. Age of Empires Official Trailer (1997, Ensemble Microsoft)Īge of Empires requires the player to develop a civilization from a handful of hunter-gatherers to an expansive Iron Age empire.