Nearly two years ago, Leigh wrote a great column on a dating game called Katawa Shoujo being made by members of a 4chan group. What made it stand out were two things: one, it's been in some kind of development for over a decade, and two, it was a dating game based on girls at a school for disabled teenagers.
Regardless of what you think of the game's content, the fact it came from a messageboard story, took that long to complete and involved over 20 developers working around the world is pretty damn interesting.
Those interested (and over 18, as it's an erotic dating sim) know that it's now been finished and is available to play on Windows, Mac and Linux systems.
Katawa Shoujo Released [Katawa Shoujo]