- Rienspel
- Rienspel Issue II: The Village
- Rienspel Issue III: The Rangers
- Rienspel Issue IV: Firehall
- Rienspel, Issue 1: The Forest
- Riese
- Riesel Tales: Two Hunters (Volume 1)
- Riesenwurm
- Riesgos de los viajes en el tiempo
- Rife (2021): A Short Story
- Riffed
- Riflessi
- Riflessi dal passato
- Rifrazioni di giallo
- Rift Angel
- Rift Jump, Volume Two: Sara's Song
- Rift Jump: Revised and Expanded Edition
- Rift of Askrah Book 1: Fracture
- Rift of Askrah Book 2: Shatter
- Rift of Askrah Book 3: Gather
- Rift of Chaos
- Rift Riders
- Rift Watcher
- Rift: The Complete Rift Saga: Books 1-3
- Rifted
- Rifted Earth Chronicles
- Rifter
- Riftkey
- Riftmaster
- Rifts
- Rig Runner
- Riga Hayworth Mysteries 1-3
- Riga Hayworth Mysteries 4-6
- Rigel
- Rigel Kentarus
- Rigel Kentaurus
- Rigel's Escape
- Rigenerazione
- Riggs: Stargazer Alien Mail Order Brides #15 (Intergalactic Dating Agency)
- Right Ascension
- Right Before My Eyes
- Right Girl, Wrong Alpha
- Right Hand Magic
- Right Now
- Right to Know
- Right to Life?
- Right to Rule (Book 1 of the Rule Series)
- Right Where You Are
- Righteous Blood
- Righteous Blood, Ruthless Blades
- Righteous Reign
- Righteous Reign Episode 4 Ragged Remnant
- Righteous Reign Episode III Rampant Rampage
- Righteous Reign II Righteous Rule
- Rightful Heir
- Rightfully His
- Righting Time
- Rigil Prime w ogniu. Tom I (Alfa Centauri II)
- Rigil Prime w ogniu. Tom II (Alfa Centauri III)
- Rihla
- Rijk der Zielen
- Rika!
- Rikard Drake
- Riker og Hemmeligheter
- Riker's Apocalypse: The Plan
- Riker's Apocalypse: The Precipice
- Riker's Apocalypse: The Promise
- Rikthim Në Tokë
- Riled Dogs
- Riley Parra Season Five
- Riley Parra Season Four
- Riley Parra Season One
- Riley Parra Season Three
- Riley Parra Season Two
- Riley's Game
- Riley's Rogues
- Riley's Rogues: Cyborg
- Riley's Rogues: Darkstorm
- Riley's Rogues: Twilight Zone
- Riley's Secret, A Moon's Glow Novel #1
- Riley, die Auserwählte
- Rim Chronicles - Books 1, 2 and 3
- Riley, die Auserwählte
- Rim Chronicles - Books 1, 2 and 3
- Rimas y Leyendas
- Rimewinter
- Rimontheepa
- Rimozione Forzata
- Rimrock Jones
- Rimworlds
- Rin Tin Tin Tabasco (Vol. 1) - Si muore soli a Meow York City
- Rin Tin Tin Tabasco (vol. 3) - L'inverno esiste solo per chi ne ha paura
- Rinascita sulla terra
- Ring
- Ring Back
- Ring der Drachen (Das Zeitalter der Magier – Buch Vier)
- Ring of Dragons (Age of the Sorcerers—Book Four)
- Ring of Fire IV
- Ring of Salvation
- Ring of Stones
- Ring of the Or'tux
- Ring of the Wizard Vampire
- Ring Shout
- Ring Shout, Cantique rituel
- Ring True
- Ringenes Herre 1
- Ringenes Herre 2
- Ringenes Herre 3
- Ringer
- Rings of Atlantis
- Rings of Havoc
- Rings, Revenge, Superstitions
- Ringshine
- Ringwall's Doom
- Ringwalls Untergang
- Ringworld
- Ringworld's Children and Fleet of Worlds
- Ringworld: The Graphic Novel
- Rink Rash
- Rinkitink in Oz
- Rio Temporal
- Rio's big blast