Twine

I spoke with Pagano and he's given me and anyone else who want to permission to use Twine for the Fairy Tale multiple ending project. For reference, Twine is a simple to use application that allows you to easily make a choose-your-own-adventure story. It allows you to get more complicated and in-depth with code, but doesn't require any sort of coding knowledge to use its basic functions.

http://twinery.org/