The game template supplies the available events/action/value. The Game Creator guides you through the available options supplied by the template. It then tries to use a human speech like interface to receive the input, the game logic. Currently there is only one game template. Each new game template would need to supply it's own possible events/actions/values to suit it's needs.
A game template looks something like this: https://gist.github.com/jamesfdickinson/65b9f5a05f4902468c46...