Galactic Civilizations is a space based, turn-based strategy game in which you are in
control of humanity's destiny. GalCiv (for short) is developed by Stardock Entertainment ,published by Strategy First, and has received Editor's Choice awards from Computer Gaming World and Computer Games Magazine. From the website:
"As leader of United Earth, you must research new technologies, build an economy, create a powerful military force, all the while carefully balancing your political, diplomatic and trade skills. Compete against up to 35 alien civilizations for domination of the galaxy."