- Regression
- Rehabilitation
- Rehan
- Reign & Revolution
- Reign of Monsters
- Reign of Resurgence: Checkmate (Kingdom of Destiny Book 5)
- Reign of Resurgence: The Advantage (Kingdom of Destiny Book 1)
- Reign of Resurgence: The Edge (Kingdom of Destiny Book 2)
- Reign of Resurgence: The Ruse (Kingdom of Destiny Book 4)
- Reign of Resurgence: The Squeeze (Kingdom of Destiny Book 3)
- Reign of the Devourer
- ReImagination
- Reincarnations
- Reining Cats and Dogs
- Reis de todos os mundos possíveis
- Reise durch die Sonnenwelt
- Reise durch die Sonnenwelt: Science-Fiction-Klassiker
- Reise in die Anderswelt: Zwei All Age Fantasy Abenteuer: Cassiopeiapress Junior
- Reise ins Ungewisse
- Reise nach dem Mittelpunkt der Erde
- Reise nach dem Mittelpunkt der Erde (Phoenix Classics)
- Reise um den Mond
- Reise zum Mittelpunkt der Erde
- Rejoins-moi
- Relapsed
- Relativity (Aurora Resonant Book One)
- Relaunch Mission
- Released
- Relentless Target
- Relfys
- Relic Tech
- Relic Worlds: Lancaster James and the Search for the Promised World
- Relic Worlds: Lancaster James and the Secret of the Padrone Key
- Relic Worlds: Lancaster James and the Shattered Remains of Antiquity
- Relics
- Reloading Souls
- Reluctant
- Reluctant Marine: Holy Christian Empire 2495
- Reluctant Psychic
- Reluctant Symbiosis
- Remade I
- Remake
- Remburg Report
- Remember Me
- Remember the Future
- Remember the Future / Dreams of a Foreign Past Realized
- Remember the Starfighter
- Remeon's Crusade
- Remission Praxis
- Remnant
- Remnant Population
- Remnants
- Remnants (Remnants Trilogy, Book 1)
- Remnants of Terrene
- Remnants of Trust
- Remote Control
- Ren, The Valaran Chronicles: Prequel 2
- Renaissance Woman
- Renaissances
- Rendezvous mit Rama
- Rendezvous mit Übermorgen
- Renee (and the Space Raiders)
- Renegade Hope
- Renegade of Kregen [Dray Prescot #13]
- Renegade's War
- Renegades
- Renegades of Time
- Renegátok
- Rennevatio
- Renovo
- Renovo Grounded
- Renovo Symbiosis
- Repair and Rebuild
- Repeat Offender
- Repeszhold
- Replay di un amore
- Repo Man: Saucer Theft
- Repo Man: Truck Repo
- Reprisals
- Reputacja
- Requiem (Aurora Resonant Book Three)
- Requiem (Delirium Trilogy 3)
- Requiem of a Nightmare
- Requiem: Primordium Book Three
- Requisition
- Rescapée
- Rescue
- Rescue from Denver
- Rescue Mission to the Stars
- Rescue Mode
- Rescue!
- Rescued by the Space Marine
- Rescuer
- Rescuing Prince Charming
- Rescuing Romila
- Rescuing the Future: A Naomi Kinder Novel
- Reset
- ReSet
- RESET – Le Voile de lumière
- Resident Evil 3.5 Foundations
- Resident Evil: retribuição
- Residuum
- Resilience
- Resilient
- Resist
- Resistance
- Resistance The Gathering Storm
- Resistance (The Variant Series, #2)
- Resistance is Brutal
- Resistance: A Hole in the Sky
- Resistant
- Resolution
- Resonance
- Resonant
- Respect
- Respect and Privilege
- Restavek
- Restavracija ob koncu Vesolja
- Restitution
- Restless: An Aurora Rhapsody Short Story
- Restoration
- Resurrected
- Resurrecting Tomorrow
- Resurrection
- Resurrection Seven
- Resurrection Sticks
- Resurrection: Chance and Change
- Resurrection: Primordium Book Four
- Resùria
- Retaliate
- Retaliation
- Retief of the Red-Tape Mountain
- Retief: Aide Memoire
- Retief: Diplomat-at-Arms
- Retief: Mightiest Qorn
- Retief: Saline Solution
- Retief: The Desert and the Stars
- Retief: The Governor of Glave
- Retief: The Madman from Earth
- Retief: The Star-Sent Knaves
- Retired?
- Retiring the Blue
- Retour (Les Chroniques de l’Invasion, Tome 4): Un Thriller de Science-fiction
- Retour à l'Âge de pierre (Cycle de Pellucidar n° 5)
- Retrato de uma Starter
- Retread Shop
- Retreat and Adapt
- Retribution
- Retribution (Undisclosed Trilogy, Book 2)
- Retro Neon Super Life
- Retro Version
- Retrograde
- Retrowave 2067: A Virtual Reality Adventure