- R. A. Lafferty Super Pack
- R. A. Lafferty: Three Great Novels
- R. L. Saunders Satire Collection 01
- R.T.F.M.
- Racconti contorti da una mente obliqua
- Racconti dal Futuro
- Racconti dello spazio e del tempo
- Racconti di fantascienza orrore e misteri. Volume due
- Race Through Space III: The End of Time
- Rachel In Love
- Rachel's Expansion
- Racing the Sand & Konstantin: Two Short Stories
- Radio Nowhere
- Ragadeeman
- Ragnarok
- Raiders of the Universes
- Rain
- Rainbow Lights
- Ramadan Alternatives
- Randsteden deel 1, Carrière maken
- Randsteden deel 2, Onnatuurlijk
- Randsteden deel 3, Defragmentatie
- Randsteden deel 4, Mensplanten van Mars
- Randsteden deel 5, Levende fantasie
- Randsteden deel 6, Robotrace
- Randsteden deel 7, De urn
- Rapporti dal domani
- Rastignac the Devil and two more stories
- Rats
- Rats and Goats in Space & Trees
- Rats! (A short story)
- Raum-Commander
- Raumkrieger im Wurmloch: 6 Science Fiction Abenteuer auf 1660 Seiten
- Raumlotsen
- Raumschiff Terra Nova - Zwei Abenteuer: Die Stadt der Steine & Ferne Raumzeit
- Raumsprünge, das kleinere Weltall und andere fantastische Erzählungen
- Raven
- Ray Bradbury 3-Book Collection
- Ray Guns And Space Babes
- Ray50R1
- Razza Ma'Razza: It's Called a Snuggly Puff, Silly Boy
- Re-chance
- Reach's Roaches
- READ in 19 Minutes
- Read Instructions Completely and other stories
- Reader
- Reading 5X5
- Ready Reference Treatise: The Sandman
- Reality and Other Fictions
- Reality Check
- Reality Check and Other Stories
- Reality Pi Day
- Reality School
- Reality School: In the Entropy Zone
- Reality Softener
- Reality Trio 1
- Realms 2: The Second Year of Clarkesworld Magazine (Clarkesworld Anthology, #2)
- Realms of Darkover
- Realms Uncharted - Tales From the past, Present & Future
- Realms: The First Year of Clarkesworld Magazine
- Realtà incostante
- Reason To Sing
- Reawakening: A Science Fiction Story
- Rebel Moon
- Reboot
- Reborn Hope
- Reclamation Project - Year One
- Recognize Fascism
- Reconcilable Differences
- Recording Dalton's Story
- Recovering Apollo 8 and Other Stories
- Recovery Is Our Specialty
- Recovery Space
- Recuerdos de la era analógica
- Red Death
- Red Elvis
- Red Eyes at Night
- Red Flood
- Red Legacy
- Red One
- Red Plague
- Red Planet Strippers
- Red Star Tales
- Red Sun of Darkover
- Red Unicorn
- Red Witch of Mercury and two more stories
- Redacted #823
- Redeemed
- Redshifted: Martian Stories
- Reeves Indeed!
- Redshifted: Martian Stories
- Reeves Indeed!
- Reflection Infection
- Reflections
- Reformed
- Reggie vs. Kaiju Storm Chimera Wolf
- Regret
- Rehab
- Rehab 3000
- Reichardt
- Reigning Cats and Dogs
- Reilly und Sunfrost: Chronik der Sternenkrieger 8 Romane
- Reimagining Lovecraft: Four Tor.com Novellas
- Reinkarnation
- Reise nach dem Mittelpunkt der Erde
- Reise um die Erde in 80 Tagen
- Rejected Messages
- Rekhmire: Enemy of the Gods
- Relative Space
- Relativity: Stories and Essays
- Release the Magic
- Relics, Wrecks and Ruins
- Remembering Turinam
- Remote Chances: A Trio Of Classic Sci-Fi Short Stories
- Remote Control
- Rendez Vous (Nederlandstalig)
- Renegade
- Renewal
- Renunciates of Darkover
- Replay di un amore
- Replica: A Short Story
- Reremembering Christmas
- Rescue Mission
- Rescue Stories (A science fiction novelette)
- Rescue Team
- Resentful Love
- Reset
- Resetting The Clock
- Resolutions: A Science Fiction Short Story Collection
- Restavek
- Restored
- Resurrecting Titanic
- Retaliator's Blues
- Retirement: A Short Story