The Incal exists because Jodorowsky's Dune did not. He spent 1974 and 1975 building an adaptation of Herbert's novel with Moebius, Giger and Chris Foss, the production collapsed, and he and Moebius then reused the world they had designed for a comic of their own. What carries across is the furniture of Dune rather than its plot: a decayed galactic empire, a messiah who may be manufactured, a psychic order behind the throne, and a substance everything depends on. Filed MEDIUM and Worldbuilding/Visual on purpose. The story is Jodorowsky's own; the debt is to the designs and the cosmology he and Moebius drew for a film that was never finished, which is why it is recorded against the novel they were adapting.