- Return
- Return (The Invasion Chronicles—Book Four): A Science Fiction Thriller
- Return of the Alliance
- Return of the Anasazi
- Return of The Ancient Ones: A Science Fiction Dragon Novella
- Return of the Ancients: The Valkeryn Chronicles 1
- Return of the Cientifico
- Return Of The Crimson Guard
- Return of the High Protector: Part II of The High Duties of Pacia
- Return of the Interfacers
- Return of the Prehistoric Vampire: The Saga of a World Called Htrae
- Return of the Star Raiders
- Return of the Vibrius
- Return To Alpha
- Return to Camerein
- Return to Castaway Island: A Castaway Island Story
- Return To Cinzana
- Return to Dakistee
- Return to Earth
- Return to Ganymede
- Return To Kiana
- Return to Neverwylde
- Return To Planet Sumer: Operation Shoestring
- Return to Skull Island
- Return to the Stars
- Return to the Whorl
- Return to Wardate
- Return To Xylanthia
- Return to Zarmina
- Returnee
- Reuleaux's Portal
- Reunification
- Reunion
- Reunion at Kasha-Asor
- Reunion on Neverend
- Revelation
- Revelations
- Revelations
- Revenant: Book 1 of The Shadow War Chronicles
- REVENGE
- Revenge (Dogboy Reborn, #2)
- Revenge Among the Stars
- Revenge of the Alien Bugs
- Revenge of the Spiders
- Revenge: Octant Chronicles #7
- Revezia Electrum Volume 1: Silver Genesis
- Revezia Electrum Volume 2: Metallic Mission
- Revezia Electrum Volume 3: Golden Restitution
- Revezia: Praxis of the Disenchanted
- Revezia: Shattered Crowns
- Revezia: Terminal Rescue
- Revival
- Revived By Malm
- Revolt on Alpha C
- Revolt on Vesta
- Revolution
- Revolution 60: The Chessboard Lethologica
- Revolution For Vengeance
- Revolution of the dead
- Revolution Z
- Revolution! 200,000 Bc
- Revolution's Rise
- Revolution's Shore
- Revolution: The Secret World Chronicle III
- Revolutionary
- Reward: Stolen Planet
- Rewind
- Rex Cresting
- Rex Equilibrium
- Rex Rising
- Rhea 41070
- Rhythm of the Imperium
- Rich Man's Sky
- Rich Weed: The Complete Adventures
- Rich Man's Sky
- Rich Weed: The Complete Adventures
- Ricochet
- Rictus
- Riddle of the Sentinels
- Riders of the Three-Toed Horse
- Riders of the Winds
- Riding the Wave (TrainReads, #3)
- Rift
- Rift Jump, Volume Two: Sara's Song
- Rift Jump: Revised and Expanded Edition
- Rifted
- Riftmaster
- Rigel Kentaurus
- Rigel's Escape
- Right to Know
- Righting Time
- Rika!
- Rikard Drake
- Riley's Rogues: Cyborg
- Riley's Rogues: Darkstorm
- Riley's Rogues: Twilight Zone
- Riley, die Auserwählte
- Rim Chronicles - Books 1, 2 and 3
- Ring Around the Sun
- Ring Back
- Ring of Fire IV
- Ring of Stones
- Rings of Havoc
- Ringworld
- Rinkitink in Oz
- Ripper
- Ripper's World: Airship Down
- Ripper's World: Ripper Fights On
- Ripper's World: The Blight
- Ripping Solace Book Two: Beating of a Dead Heart