Explore. Expand. Exploit. Exterminate.  This is where the term "4X" originates.  The granddaddy of our genre is, of course, Sid Meier's Civilization. Where Sid Meier's Civilization leverages our common history from the dawn of agriculture to the moment we leave the Earth, Galactic Civilizations begins at the moment we leave our home world. In Galactic Civilizations, players create their own histories.  Each game is a different possibility.  When we relea...