Considering this thread, I have an idea of what the credits will be already...
Original game and game engine and stuff like that:
Midnight Synergy
Hub design and story (not much else, he was busy enough with those tasks):
Emerald141
Level design (Yeah, pretty much all of it):
MyNameIsKooky
Special thanks to:
*insert list of all other level designers here*
for the occasional level as well.
