I have GalCiv2, (with the Dark Avatar expansion), purchased at retail 10 years go. There is a lot in there for fans of the genre, massive customization and options, and fantastic music.

Can't comment much beyond that, as I've never felt at home with RTS games, and generally didn't stick with them too long. This includes 'Sins of a Solar Empire', 'Age of Empires 2', and the 'Company of Heroes' games I had back around the same years.

WARNING: This post contains opinions produced in a facility which also occasionally processes fact products.