Hey, I'm new to this forum and to this site, but I found out about this game, from markiplier actually and immediately became interested. I have been following along a little with you all's progress and I think I have something to add. It keeps telling us to look inside and so I did. I used 7-zip to open the games executable file and found three files the most notable of which was the .ini file, it is labeled leave.ini
And example can be seen here - http://imgur.com/FSaRAdn
Anyway I did the same for his other 9 games and found a different named .ini for each one. Not sure if this means anything but I though it was interesting. (I apologize for the spacing it made use double spaces like this)
One the edge: where.ini
MOON OMEN: DEATH.ini
The painful box: drown.ini
Six Books: books.ini
en wye: enwye.ini
Hypno-467767: hypno.ini
Unforgettable: utwya.ini
Tits and Boobies: erect.ini
Don't play this game: leave.ini
Also reversed this music at the end of Six Books, haven't been able to find the name of this music but seems like it might be a clue.