Galactic Civilizations (PC)

Galactic Civilisations is a turn-based strategy game set in space at the dawn of the 23rd century, where you become the leader of the human civilisation. The galaxy has six major civilisations and the race is on to colonise, conquer and dominate the galaxy using whatever means necessary. Players can use military, technological, economic or political might to become a major power in the galaxy and must also research new technologies, colonise and defend planets, construct Space Stations, initiate social improvements, build a fleet, fight wars, win elections and gain influence in the United Planets Security council.
The game is won when all the races become united in a galactic alliance, someone researches technology that takes them beyond mortality or one civilisation conquers the opposition with their military might.