Aspyr Media today announced they have released a free demo for Sid Meier’s Civilization IV for Macintosh. Civilization IV is a Universal Mac title, running natively on both PowerPC- and Intel-based Macintosh computers. With Sid Meier’s Civilization IV, history as you know it, is history. Rule throughout time and create your own legacy as you guide your civilization from the dawn of man through the space age and beyond. Implement new technologies, conduct diplomacy or wage war to grow your society and become the most powerful leader the world has ever known. Civilization IV is priced at US$49.99.