Deathworld is the name of a series of science fiction novels by American writer Harry Harrison, including the books Deathworld, Deathworld 2 and Deathworld 3, plus the short story "The Mothballed Spaceship". The central hero is a gambler who becomes involved with colonists of an extremely hostile planet.
Planet of the Damned is a 1962 science fiction novel by American writer Harry Harrison. It was serialised in 1961 under the title Sense of Obligation and published under that name in 1967. It was nominated for the Hugo Award.