Earthen - Smiths built atop moon
First up you'll need a copy of moon, follow the installation and building instructions there and then return here.
Running the game is done via the helper script play, else run moon-mruby ./main.rb.
ES uses its own version of the bootstrap, so DO NOT RUN moon-player.
If your name is archSeer or IceDragon, then this should work correctly.
In case that the above didn't work, you may need some graphical resources that weren't included due to licensing.
In that case, I can't help you, sorry.
FYI, WE HAVE NO FAQS, OR FAX, just saying ya know.