Cageworld series

1. Search for the sun! (1982) (also published as Cageworld)
2. The Lost worlds of Cronus (1982)
3. The Tyrant of Hades (1984)
4. Star Search (1984)

Chaos series

• The Patterns of Chaos (1972)
• The Chaos Weapon (1977)

Standalone novels

• The Dark Mind (1964) (also published as Transfinite Man)
• The Wizard of Anharitte (1973)
• The Survival Game (1976)
• Manalone (1977)
• The Ion War (1978)
• The Timewinders (1980)

Short stories

Unorthodox Engineers

• "The Railways Up on Cannis" (1959)
• "The Subways of Tazoo" (1964)
• "The Pen and the Dark" (1966)
• "Getaway from Getawehi" (1969)
• "The Black Hole of Negrav" (1975)

Other stories

• "Breaking Point" (1959)
• "Survival Problem" (1959)
• "Lambda I" (1962)
• "The Night-Flame" (1964)
• "Hunger Over Sweet Waters" (1965)
• "Ambassador to Verdammt" (1967)
• "The Imagination Trap" (1967)
• "The Cloudbuilders" (1968)
• "I Bring You Hands" (1968)
• "Gottlos" (1969) - notable for having inspired among others Steve Jackson's tank warfare game Ogre
• "The Teacher" (1969)
• "Letter from an Unknown Genius" (1971)
• "What the Thunder Said" (1972)
• "Which Way Do I Go For Jericho?" (1972)
• "The Old King's Answers" (1973)
• "Crimescan" (1973)
• "What The Thunder Said" (1973)
• "Mephisto and the Ion Explorer" (1974)
• "War of the Wastelife" (1974)
• "Cassius and the Mind-Jaunt" (1975)
• "Something in the City" (1984)
• "An Alternative to Salt" (1986)