Spans a thousand years, from the fall of Rome through the Middle Ages in which players lead one of 13 civilizations into greatness. The game keeps the epic scope of Age of Empires' game play while evolving the combat and economic features.
Classic RTS, it was my entire childhood. Must have spent about 2000 hours playing it... The map editor is incredible.
Easily rivals any other game of that type I've ever played. Campain was also very fun.