I found this on the official website that just came back up for service.
What If You Don't Raise Enough Money?
We are encouraged by the overwhelming response to our "underground" launch site with over 20,000 registered users that we will reach, and hopefully exceed our minimum goal. We also believe that the response to our crowd funding campaign will cause certain fans and investors to step up with additional funding. Nonetheless, we are offering you the option to have your money refunded (less processing fees), should we really not reach our minimum goal. Or you may leave it in so that we can use it for additional fund raising or to continue working on the game at a reduced level.