Gotta agree with Red here. If you go to any Counterstrike, Quake1/2/3, UT2003, etc. IRC channel where they meet to find servers, you'll find that they are almost 100% male and in mid to late teens. Girls (and older guys) lose interest in games very quickly.
Girls often prefer simple, addictive games like tetris, and their special favourite, Windows Solitaire and Freecell!
