- Realities: Continental War
- Realities: The Return
- Reality Alternatives
- Reality Game
- Reality Pi Day
- Reality Recoded
- Reality Trio 1
- Realization: The Martiniere Legacy Book Three
- Realm of Power
- Realm of Revein'sev
- Reaper's War
- Reapers
- Reaping Day
- Rear Echelon
- Reason For Vengeance
- Rebel Alliances
- Rebel Hell
- Rebel Ice
- Rebel Moon
- Rebel of Antares [Dray Prescot #24]
- Rebel Rout
- Rebel Without a Clue
- Rebel's Construct (Sim-Verse: Book 1)
- Rebel's Gambit (Sim-Verse: Book 2)
- Rebel's Rule (Sim-Verse: Book 3)
- Rebellion
- REBELLION
- Rebellion auf Ginor
- Rebellion on Planet Sarvage
- Rebellion Revisited
- Rebels
- Rebels of the Red Planet
- Rebels of Vulvar
- Rebels Revolution -- Dawn of the Rebel
- Rebel’s Flight
- Rebirth
- Reborn With Fire
- Rebuilding A Legacy
- REC Inteligencia Artificial
- Recalled to Life
- Recidivist Paradox
- Recidivist Paradox
- Reciprocal Paranoia
- Reckless Brilliance
- Reckless Death Persuasion
- Reckoning
- Reckoning in Samael
- Reclamada por los vikens
- Reclamation
- Reclame en de Kunst van het Hacken
- RECOGNITION
- Recombinant Love
- Reconnect
- Recovery Mission
- Recovery Space
- Recuerda el Futuro
- Red and the Wolf: A Sci-Fi Romance Fairy Tale
- Red Bush
- Red Country
- Red Dreams
- Red Dust
- Red Dwarf
- Red Dwarf Boxed Set
- Red Dwarf Bundle
- Red Dwarf II
- Red Dwarf III
- Red Dwarf IV
- Red Energy. The Alex Cave Series Book 3
- Red Gambit
- Red Gem of Mercury
- Red Limit Freeway
- Red Man, White Land
- Red Nails
- Red Notes
- Red One
- Red Planet Blues
- Red Plus Zone
- Red Ridge
- Red Rising - Asche zu Asche
- Red Rising - Das Dunkle Zeitalter Teil 1
- Red Rising - Das Dunkle Zeitalter Teil 2
- Red Rising - Im Haus der Feinde
- Red Rising - Tag der Entscheidung
- Red Rock
- Red Roots
- Red Shift Tours
- Red Star
- Red Star Sheriff Volume One
- Red Thru Black
- Red Thunder
- Red Tide
- Red Vengeance
- Red Warp
- Red Wrath
- Red#1: Burning Skies
- REDD: Down the Rabbit Hole
- Redeeming Jacob Marley
- Redemption
- Redemption Protocol
- Redemption Song
- Redenzione la stirpe reale
- Rediscovery
- Redline Rebels
- Redshift Rendezvous
- Redshirts
- Redtooth
- Reefsong
- Reflections of Destiny
- Reflections on the Decline of Science in England
- Reformation - Part 2
- Reformation - Part 3
- Reformation Part 1
- Refracted to the Stars
- Refugee
- Refugee Star Trail
- Regan's Planet
- Regarde-moi dans les yeux
- Regarding Avalon
- Regardless of the Consequences
- Rege's Rescue
- Reggie vs. Kaiju Storm Chimera Wolf