- R. A. Lafferty: Three Great Novels
- R. U. R. (Rossum's Universal Robots)
- R_Evolution
- Rabbitman 2: The Second of Scott
- Rabbits
- Rabenaas
- Race Against Time
- Race Through Space
- Race Through Space III: The End of Time
- Race to Refuge
- Race to the Moon
- Races of Armis - Book 2 - Emerald Wings
- Rache aus dem Cyberspace
- Racing Against Time
- Racing Dragons
- Racing Evil
- Racing the Orast Belt
- Radiant
- Radiate
- RADICAL
- Radicalized
- Radikálisok
- Radko's War
- Rae
- Rage of a Lost Sun (Lost Sun 0.5)
- Rai'an
- Raid on Sullin
- Raider!
- Raiders From The Rings
- Raiders of the Lost World
- Raiders of Vanok
- Rail Gun
- Rain's Gambit
- Rainfall
- Rainwalkers
- Raising Avon
- Raising Hell
- Rajani Chronicles II: Resistance
- Raketenmenschen greifen an!
- Ralestone Luck
- Ralph 124C 41+: A Romance of the Year 2660
- Ramadan Alternatives
- Ramming Speed
- Ramses' Thunder
- Ramu
- Rand Hart and the Pajama Putsch
- Random Acts of Cloning: The Complete Series
- Random Acts of Senseless Violence
- Random Dingoes
- Random Sh*t Flying Through The Air
- Randor
- RangerKnights
- Ranis
- Ranking
- Ransom
- Rapier
- Rapito
- Rapport Geisterwelten
- Raptor Squadron
- Raptor Threat
- Rapture
- Rapturous Pejoration
- Rare Species
- Rarity from the Hollow
- Rascals and Renegades
- Rastignac the Devil
- Rat Attack (The Old Store: Lost Tales 3)
- Rat der Neun - Gegen das Schicksal
- Rat der Neun - Gezeichnet
- Rat der Neun - Vorab-Leseprobe
- Rat Pirates
- Rate of Return
- Rath's Deception
- Rath's Gambit
- Rath's Reckoning
- Rats
- Rats!
- Rattle of Bones
- Rattled Mind
- Raumkrank
- Raumkreuzer ACHAMUR (I)
- Raumkreuzer ACHAMUR (II)
- Raumkreuzer ACHAMUR (III)
- Raumlotsen
- Raumschiff Promet - Von Stern zu Stern 35: Im Licht der drei Monde
- Raumschiff Promet - Von Stern zu Stern 36: Planet der Bestien
- Raumspringer
- Raumsprünge, das kleinere Weltall und andere fantastische Erzählungen
- Raven
- Raven Planet
- Raven Rising
- Raven Sharpe
- Raven's Children
- Raven: Girl Aflame
- Ravenheart
- Ravenhurst Manor
- Ravenstar's Bride
- Ravenstone (The Complete Saga)
- Ravenstar's Bride
- Ravenstone (The Complete Saga)
- Ravenwood Stepson of Mystery in Trumpet of Triton
- Raw Stars
- Ray Bradbury Super Pack
- Razing Pel
- Razor King
- Razza guerriera
- Raízes do amanhã
- Re-chance
- Re-Launch: Science Fiction Stories of New Beginnings
- Re-Runners Third Life Part 1
- Re-Test
- Re/Genesis: An Aurora Rhapsody Short Story
- Re:ZERO - Starting Life in Another World-, Vol. 4 (Light Novel)
- Re:ZERO -Starting Life in Another World- Ex, Vol. 1 (light novel)
- Re:ZERO -Starting Life in Another World- Ex, Vol. 2 (light novel)
- Re:ZERO -Starting Life in Another World- Ex, Vol. 3 (light novel)
- Re:ZERO -Starting Life in Another World- Ex, Vol. 4 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 1 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 10 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 11 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 12 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 13 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 14 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 15 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 16 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 17 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 18 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 2 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 3 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 5 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 6 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 7 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 8 (light novel)
- Re:ZERO -Starting Life in Another World-, Vol. 9 (light novel)
- Reach For The Stars
- Reach: Who defines good and evil?
- Reaching Beyond
- Reaching Nirvana
- Ready Player Two
- Ready Reference Treatise: Flowers for Algernon
- Ready Reference Treatise: Slaughterhouse Five
- Ready Reference Treatise: The Time Machine
- Reah Leah the White: From Cat to Queen
- Real Virtualities
- Realia
- Realidades Paralelas: Los Dos Pilares