Castle Perilous is a giant castle with 144,000 rooms that are portals to other worlds. These portals are constantly shifting in and out of other dimensions and occasionally they temporarily open up somewhere on Earth. At those times people may stumble into the castle and not be able to get back out. They become one of the permanent “guests” who have great food, luxurious accommodations, and servants to wait on them. Best of all, they get to explore some of the stable portals leading to exotic places.