It was just officially released at the beginning of this month.
Also, it's free.At it's most basic, it's a Japanese-style visual novel (yes, of the erotic variety) centered around a school specifically for disabled children. Each of the courtable girls, and the protagonist, has some sort of physical ailment. Icing on the cake? It was made by mooks on 4chan.
The most shocking thing about this game is that it completely defies expectations; where you might expect to find degenerate smut, fetishizing disabilities for a wank's sake, you instead find a grounded, respectful story, competently written and strangely compelling. There are sex scenes, yes, and while they adhere to what you'd expect from something like this (I assume; this is my first foray into the genre) they actually play into the narrative in meaningful ways.
I don't think it's for everyone. I'm predisposed to visual novels thanks to Hotel Dusk, Phoenix Wright, 999 and whatever, but the more I play it the more I think it's worth checking out.