Alternatively if you just wanted to make something for ruby, you could
probably just use drb, might make things a lot easier.

Good concept for a game.  I think with a simple concept, more
interesting mechanics can arise.

As far as the gui and such, it shouldn't really be that hard I think.
Pretty easy to do in OpenGL, at least a primitive implementation,
someone could make a fancier one later ;)
  .adam