What all these
brunette games have in common are the beautiful brown-haired babes who star. Technically black hair isn't brunette, but in practice if you aren't blonde or a redhead, you're a brunette, because who can say your hair isn't just really deep brown? Brunette is the anti-blonde, which means in these games, all the women who don't fit the "airheaded oversexed bimbo" stereotype get cast as brunettes. That's why you'll find games with MILFs, dominatrixes, uniformed cops, or action-heroine cosplayers to be mostly populated with pretty brunettes. That goes double if she's smart or nerdy, like a sexy librarian.