- D
- D is for Dinosaur
- D'autres vies
- D'une logique imparable
- D'épreuve en épreuve (Pas de paradis sans... l'enfer, vol. 6)
- D-99 (Serapis Classics)
- D-99: A Science Fiction Novel
- D.D.S.aves the World
- Da Terra à Lua
- Dad and the Impossible Perpetual Motion Machine
- Dad's Phone
- Dadaleon
- Daddy's Different
- Daedalus
- Daedalus Combat
- Daedalus Leo
- Daedalus Squad
- Dag
- Dagger of Eons
- Dagli archivi di mastro Wiggins, Esq.
- Dagon (Illustrated)
- Dahlia
- Dahut
- Daikaiju Attack
- Daisy World
- Dakiti: Ziva Payvan Book 1
- Dal Vangelo Secondo Giuda
- Dalla Terra alla Luna
- Dalla Terra alla Luna (Prometheus Classics)
- Dalle labbra della notte
- Dalle mie ceneri
- Dalston Junction
- Dalynia: Nature's Slaughter
- Dama Luna
- Damaged Space
- Dames, Donuts and Death
- Damianus
- Damien et son double
- Damned If You Don't
- Damned Lies!
- Damon Knight SF Gateway Omnibus
- Dan Arrow and the Hollow Moon
- Dan Arrow and the New World Order
- Dan Arrow and the Three-Headed Ophidian
- Dan Sherman Space Guardian All Worlds Book Eight
- Dan Sherman Space Guardian All Worlds Book Eleven
- Dan Sherman Space Guardian All Worlds Book Five
- Dan Sherman Space Guardian All Worlds Book Four
- Dan Sherman Space Guardian All Worlds Book Nine
- Dan Sherman Space Guardian All Worlds Book One
- Dan Sherman Space Guardian All Worlds Book Seven
- Dan Sherman Space Guardian All Worlds Book Six
- Dan Sherman Space Guardian All Worlds Book Ten
- Dan Sherman Space Guardian All Worlds Book Three
- Dan Sherman Space Guardian All Worlds Book Two
- Dana
- Dance of Death: A Cyberpunk Science Fiction Novella
- Dance with The Devil
- Dance with the Devil
- Dancers and Divas
- Dancers in the Afterglow
- Dancing During The Storm Vol 2
- Dancing in the Ashes
- Dancing Moons
- Dancing on the Edge of the Waterfall
- Dancing Vac
- Dancing With Death
- Dancing With Myself
- Danger at the Mid-High
- Danger in Deep Space
- Danger on the Amazon
- Danger Planet
- Danger's Race
- Danger, Danger Will Ribeiro!
- Dangerous Addictions
- Dangerous Crossing - The Dark Future
- Dangerous Machines
- Dangerous Memories
- Dangerous Rendezvous
- Dangerous Secrets
- Dangerously Theirs
- Dangerously Yours
- Danger’s Cure
- Danger’s Fate
- Danger’s Halo
- Danger’s Hunt
- Danger’s Vice
- Daniel and Job
- Daniel and Job, Book II: The Nograv
- Daniel and Job, Book III
- Daniel Oriel and the Archaeometrist
- Danny Shaw, Twelve Year Old Time Traveler in the Year 2000
- Dans l'Abîme du Temps
- Dans l'œil du cyclone
- Dans la peau
- Dans la tête d'Hugo
- Dans le secret des dieux
- Dans les yeux
- Dante's Equation
- Dante: Orta Origins
- Dare to Endure
- Dare to Know
- Dare vita, dare morte
- Dare You Dare Me
- Daring Char
- Daris Moon
- Darius World: A Place Called Earth
- Dark Age
- Dark Angels Rising
- Dark Apprentice: Star Wars (The Jedi Academy)
- Dark Arrival
- Dark As Day
- Dark as Day
- Dark Avengers: The Patriot List
- Dark Benediction
- Dark Boundaries
- Dark Chaos
- Dark Chateau
- Dark City 1: Das Buch der Prophetie
- Dark City 2: Die Tränen des Lichts
- Dark Crossings
- Dark Crypto
- Dark Dance
- Dark Dawn
- Dark Doses
- Dark Energy
- Dark Fire: Tomorrow's Awakening
- Dark Fire: Yesterday's Tears
- Dark Flash 2