In various posts Brad (Frogboy) has said that there was no way Galactic Civilizations II could make the overall top 10 in PC games sales.

The reason for that is that unlike games released by the big 5 publishers, Galactic Civilizations II would only be at major retail outlets (as opposed to every store that carries any sort of PC game). 

Another factor is that Galactic Civilizations II is available for direct purchase and download which aren't counted.  Nearly 30% of the game's overall "sell-thru" has come from sales through TotalGaming.net (one can imagine the ranking if those sales were added in).

But thanks to strong word of mouth, great reviews, and other factors, GalCiv II sold so well at the retail outlets that it is at that it was able to still make the top 10 for April.

Thank you so much for your support!