I remember finding the anime tag on steam. I was kind of excited, expecting some good old-fashioned JRPGs. Instead I find "Totally not creepy 12-year-old swimsuit sex joke simulator" and such.
One of the better ones on there is the fruits of grisia, that VN is amazing. the stuff that gets front page for some reason is usually pretty trash. But i like to think that steam is just trying to get it's feet in the water to VN's, since not a whole lot of people are really into them.