Well, in desperation, I tried looking for more Visual novels that could heal the feel that Katawa Shoujo gave (cheesy I know). I didn't have much expectation, since KS was the first Visual Novel I read, but now I can't stop reading Visual Novels. They're simply awesome!
If you want more, there are thousands listed in the Visual Novel Database. If you want to start one, without the bother of looking for the right one, might I suggest "Sharin no Kuni, Himawari no Shoujo", a good VN in my opinion.
Just trying to help, since I know the crappy feeling of finishing KS.