Monte Cook has written hundreds of roleplaying game products, along with numerous short stories, novels, nonfiction titles, and comic books. He is probably best known for his work on such notable titles as Planescape, Ptolus, the 3rd Edition of Dungeons & Dragons (which he codesigned with Jonathan Tweet and Skip Williams), Arcana Evolved, and of course Numenera and the Cypher System. He is a cofounder of Monte Cook Games, and is our lead designer.