Stardock Entertainment announced today that the beta test for Galactic Civilizations II: Twilight of the Arnor, the final act in the epic Dread Lords saga, is now available for players who have pre-ordered the title at TotalGaming.net. In addition to a new campaign that ties up the Dread Lords saga, Twilight of the Arnor adds civilization-specific technology trees and planetary improvements and comes with a 3D-engine-powered map editor, a new Scenario Editor for creating highly detailed custom games, a new Campaign Editor, new enhanced textures and graphics for planets and ships and many more. Galactic Civilizations II: Twilight of the Arnor will be released on December 12 for $29.95, while fans can pre-order the expansion at a special $24.95 price by visiting this page.