Someone please move this if I shouldn't have posted this in the new releases topic, but
http://blindraver.livejournal.com/293661.html
This isn't my project, Just something I zipped up with required files: I hope someone has fun with it, anyway. Braillemon still has some features this is lacking, but this is much longer. I don't know of an audio game this long.
Edit: The developer has released an official variant of this thing: Download it from
http://allinaccess.com/pca/