- Cold Bones
- Cold Case Coverup
- Cold Comfort
- Cold Earth Wanderers
- Cold Fire: Book Three of the DMSR Series
- Cold Fusion
- Cold Ghost
- Cold Light
- Cold Logic
- Cold Nightmares
- Cold Pride
- Cold Revenge
- Cold Snap
- Cold Snap Imminent
- Cold Storage
- Cold Trap
- Cold Victory
- Cold Water, Hot Air
- Cold Welcome
- Cold Winds Dark Days
- Cold Zero
- Cold Zero - Parte Seconda
- Colección de Julio Verne
- Colección del Programa de Novias Interestelares
- Colei che ferma il tempo
- Colerianischer Herbst
- Colin Frake - Asclepius
- Collaborators
- Collana di Racconti e Favole Vele vol. 1
- Collana di Racconti e Favole Vele vol. 2
- Collapse Eternity/Implosion Infinity
- Collateral Damage
- Collect One-Two
- Collectables
- Collectanea
- Collected Letters Volume One
- Collected Letters Volume Three
- Collected Letters Volume Two
- Collected Science Fiction and Ghost Stories
- Collected Science Fiction Short Stories: Volume Six
- Collected Science Fiction Short Stories: Volume Three
- Collected Stories of Fantasy and Science Fiction
- Collected Works
- Collected Works of H. G. Wells (illustrated)
- Collected Works of H.G. Wells (Illustrated)
- Collected: Volume 2
- Collected: Volume 5
- Collection of Creativity
- COLLECTION OF THE NEGATIVES
- Collector
- Collector - Operation Vade Retro
- Collector Ship
- Collector’s Item
- Colliding Galaxies
- Colliding Worlds Vol. 1: A Science Fiction Short Story Series
- Colliding Worlds Vol. 2: A Science Fiction Short Story Series
- Colliding Worlds Vol. 3: A Science Fiction Short Story Series
- Colliding Worlds Vol. 4: A Science Fiction Short Story Series
- Colliding Worlds Vol. 5: A Science Fiction Short Story Series
- Colliding Worlds Vol. 6: A Science Fiction Short Story Series
- Collision
- Collision with Chronos
- Collusion Course
- Colonel
- Colonel Rutherford's Colt
- Colonial One
- Colonial Plagues
- Colonial Prime
- Colonisation: Second Contact
- Colonization
- Colonization Ring
- Colonizing Trappist
- Colony
- Colony Girl
- Colony in Peril
- Colony Lost
- Colony On Fire
- Colony on Mars
- Colony One
- Colony Planets
- Colony War
- Colony Z: The Albion Tribe (Vol. 2)
- Colony Z: The Complete Collection
- Colony Zero
- Color of the Sun
- Colorado
- Colors Of The Sun
- Colors of Time
- Colossal - When the Ground Shakes
- Colosseums for Dinosaurs
- Colossus
- Colours of the Soul
- Colt Coltrane and the Harrowing Heights of Hollywoodland
- Coma
- Combat and eight more stories Vol III
- Combat Earth
- Come and Get It
- Come and Take Them
- Come ladro di notte
- Come nascono i bambini
- Come the Revolution
- Come to My Door
- Come the Revolution
- Come to My Door
- Come tu mi vuoi
- Come un serpente che si morde la coda
- Come una fenice
- Come With Me If You Want To Live
- Come, Hunt an Earthman
- Comeback
- Comet Halley
- Cometary Tales
- Comienzo
- Coming Back from Nowhere
- Coming from Darkness
- Coming Home Again
- Coming Into Focus
- Coming of Age
- Coming Soon Enough
- Coming Storm - Thorr's Journey
- Coming to You Live
- Coming Together
- Coming Together: Among the Stars
- Command & Conquer (tm)
- Command & Control
- Command Decision
- Commandant Reilly #1: Verre Missie
- Commander
- Commander Parkers Fight in an Alternate Universe
- Commander Reilly #1 - Ferne Mission: Chronik der Sternenkrieger
- Commander Reilly #10: Das Imperium der Arachnoiden: Chronik der Sternenkrieger
- Commander Reilly #11: Verschwörer der Humanen Welten: Chronik der Sternenkrieger
- Commander Reilly #12: Commander der Humanen Welten: Chronik der Sternenkrieger
- Commander Reilly #13: Einsatzort Roter Stern: Chronik der Sternenkrieger
- Commander Reilly #14: Im Licht des Roten Sterns: Chronik der Sternenkrieger
- Commander Reilly #15: Die Weisen vom Sirius: Chronik der Sternenkrieger
- Commander Reilly #16: Die Flotte der Qriid: Chronik der Sternenkrieger
- Commander Reilly #17: Ein Raumkapitän der Qriid: Chronik der Sternenkrieger
- Commander Reilly #18: Commander der STERNENKRIEGER: Chronik der Sternenkrieger
- Commander Reilly #19: Eine Kolonie für Übermenschen: Chronik der Sternenkrieger
- Commander Reilly #2 - Raumschiff Sternenkrieger im Einsatz: Chronik der Sternenkrieger
- Commander Reilly #20: Kampfzone Tau Ceti: Chronik der Sternenkrieger
- Commander Reilly #21: Prophet der Verräter: Chronik der Sternenkrieger
- Commander Reilly #22: Einsamer Commander: Chronik der Sternenkrieger
- Commander Reilly #4: Das Niemandsland der Galaxis: Chronik der Sternenkrieger
- Commander Reilly #5: Commander der drei Sonnen: Chronik der Sternenkrieger
- Commander Reilly #6: Kampf um drei Sonnen: Chronik der Sternenkrieger
- Commander Reilly #7: Commander im Sternenkrieg: Chronik der Sternenkrieger
- Commander Reilly #9: Invasion der Arachnoiden
- Commander Reilly #9: Invasion der Arachnoiden: Chronik der Sternenkrieger
- Commander Reilly Folge 1/2 Doppelband Chronik der Sternenkrieger
- Commander Reilly Folge 3/4 Doppelband Chronik der Sternenkrieger