The Galactic Downloads Page
offers stand-alone downloads of the Expanded Universe free add-on for Galactic
Civilizations that was released last month via the StarDock Central utility (story
Word is: "The expansion pack has a ton of cool new features such as an
integrated encyclopedia/technology tree navigator, a rally point manager, new
ships, new technologies, larger map size, updated graphics, and much more."
While there, you may want to participate in the poll they are running to gauge
interest in a premium add-on for the space game that would cost around $20.