Galactic Civilizations is a turn-based strategy video game developed by Stardock and released in March 2003. The game is a remake of a vintage OS/2 series of the same name. An expansion pack entitled Altarian Prophecy was released in July 2004. A sequel, Galactic Civilizations II: Dread Lords, was released February 21, 2006. On May 14, 2015 Stardock released Galactic Civilizations III.