The United Nations forms the United Nations Interdimensional Survey Service (UNISS) along with IDET (Inter-Dimensional Exploration Teams) to oversee the administration of the Fringepaths and their exploration. As a member of IDET, characters help explore other worlds, help other alternate worlds with their problems, and face down the menaces that exist on the Fringepaths. Players play characters with the 1-in-100,000 ability to use the equipment left behind by a race named the Tehrmelern. They created the pathways, called the fringes, that lead to other worlds and other places.