Gamespy writes: "Brad Wardell and his Stardock team had an impossible challenge when they decided to create a second expansion pack for Galactic Civilizations II. Dark Avatar, the game's first expansion, was everything an expansion pack should be, adding an insane amount of new features and significantly deepening the basic gameplay, vaulting an already-stellar title into the realm of strategy-game classic. We loved it so much, in fact, that we placed Dark Avatar at number six on our overall Top Ten games of 2007. Fortunately for strategy-game lovers, the Stardock team seems to thrive on impossible challenges. The result of this drive for strategy game greatness is Twilight of the Arnor, a second expansion pack for Galactic Civilizations II that manages to outshine the first."