Pick up Galactic Civilizations II: Ultimate Edition now on Steam. Until December 9th, players can purchase the game for $14.99.

From the press release:

    Stardock announced today that the award-winning 4X turn-based strategy title Galactic Civilizations II: Ultimate Edition has made its way to Steam. Stardock announced last month that after years of exclusivity to the Impulse digital distribution platform (now owned by GameStop) its titles would be making their way to a broader PC gaming audience. Fans can now purchase Galactic Civilizations II: Ultimate Edition (priced at $19.95) for 25 percent off through December 9th at http://store.steampowered.com/app/202200/. Nominated for several “Strategy Game of the Year” awards in 2007, Galactic Civilizations II is the most epic turn-based space strategy game ever.

    In Galactic Civilizations, it is the 23rd century and the known galaxy is at war. The Terran Alliance and their coalition are fighting a desperate interstellar war with the evil Drengin Empire and their ruthless allies. Behind the scenes, the precursor civilization called the Dread Lords pulls the strings on both sides. As leader of a galactic civilization, it is up to you to ensure the triumph of your civilization. Fight wars, design star ships, research new technologies, negotiate treaties and build an empire that will stand the test of time in this epic and timeless strategy game.

    The first expansion title, Dark Avatar, greatly expands the gameplay of Galactic Civilizations II: Dread Lords. Dark Avatar introduces asteroid belts that can be mined for resources, unique planets that require special technologies to colonize, spies to conduct sabotage and destabilization (or used to protect your worlds from the same), new types of diplomatic treaties, an enhanced artificial intelligence engine, and much more.

    The second expansion, Twilight of the Arnor, takes players into the year 2227 where the fire of war is consuming the galaxy thanks to the manipulations of the evil Dread Lords. But the remaining factions, led by the humans, have a plan to rid the galaxy of the Dread Lords once and for all. It’s up to you to conquer the galaxy and determine the fate of those around you.