The movie is based in part on the live-action role-playing game of the same name. Created by Brad Sappington and Chris Weed of Goucher College over five years ago, the game now enjoys a following into the hundred of thousands and is played on campuses all over the world.
The "looks clear" dialogue between Frank and Tommi outside the dorms is a word for word copy from Vin Diesel's and Cole Hauser's interaction on the film Pitch Black when they are making their first attempt to cross the desert to the camp from the crash site.