- Claws of the Genestealer
- Claws That Catch
- Clay (Episode One of Farther Than We Dreamed)
- Clay for Ellen (A Tale of Glamours)
- Claymore
- Clays Beneath the Skies
- Cleah: The Lost Fury Chronicles The Otherworld
- Clean
- Clean For A Day
- Clean Hands
- Clean Install
- Clean Slate
- Clean Slate Complex (a daynight story)
- Clean up on Aisle 7!
- Cleaning House
- Cleaning Up The Future
- Cleanup Crew
- Clear as Light
- Clear Shining After Rain
- Clear Signals
- Clear Water
- Clearinghouse
- Clearwater
- Clearwater Dawn
- Clearwater Witches Bundle
- Cleave
- Clem Starr Demon Fighter Box Set - Books 4-6
- Clem Starr Demon Fighter Box Set: Books 1-3
- Clem Starr: Demon Fighter books 1-6
- Clementi
- Clementine
- Clementine (Le Siècle mécanique, Tome 2)
- Cleo and the Scout
- Cleon Moon
- Cleopatra & Antony: Vampire Romance
- Cleopatra 7.2
- Cleopatra — Volume 04
- Cleopatra — Volume 09
- Cleos Weg
- Cletus T. Broshus: Monster Hunter
- Cli-Fi Plus
- Clidepp Deja Vu
- Clidepp Requital
- Client from Hell
- Cliff
- Cliffhanger
- Cliffhanger
- Clifford Simak SF Gateway Omnibus
- Cliffside Manor: The World's Coziest Haunted Hotel
- A Thousand Li: Clifftop Crisis and Transformation
- Clifton Danger
- Climate Change and Humanities Death Sentence
- Climate fiction
- Climate Spirit
- Clio Kelly et l'éveil de la gardienne
- Clio's Choice
- Clipped Touches
- Clive Cussler's The Devil's Sea
- Clive Cussler's The Serpent's Eye
- Cloak & Dagger
- Cloak & Ghost: Blood Ring
- Cloak & Ghost: Lost Gate
- Cloak & Ghost: Rebel Cell
- Cloak & Silence
- Cloak -- A Protector Story
- Cloak And Dagger
- Cloak And Dagger: Dark Matters Book One
- Cloak Games: Blood Cast
- Cloak Games: Frost Fever
- Cloak Games: Hammer Break
- Cloak Games: Last Judge
- Cloak Games: Mage Fall
- Cloak Games: Omnibus One
- Cloak Games: Rebel Fist
- Cloak Games: Shadow Jump
- Cloak Games: Shatter Stone
- Cloak Games: Sky Hammer
- Cloak Games: Thief Trap
- Cloak Games: Tomb Howl
- Cloak Games: Truth Chain
- Cloak King Royal Blood: Chapter 1: The Call of Mant-Orr
- Cloak King Royal Blood: Chapter 2: Rejecting Mant-Orr's Promotion
- Cloak King Royal Blood: Chapter 3: The Power of the Manifest Stones
- Cloak King Royal Blood: Chapter 4: Moving Beyond Cycles
- Cloak King Royal Blood: Chapter 5: The Cave of Transparency
- Cloak King Royal Blood: Chapter 6: The Inner Caverns
- Cloak King Trilogy 1: Books 1, 2, & 3
- Cloak King: Intertwined
- Cloak King: Plucked Out of Time
- Cloak King: Royal Blood
- Cloak of Ashes
- Cloak of Blades
- Cloak of Dragons
- Cloak of Magic (Shaihen Heritage Book 1)
- Cloak of Obscurity
- Cloak of Shadows
- Cloak Of The Blood Moon
- Cloak of Wolves
- Cloaked
- Cloaked Enemies
- Cloaked In Shadows
- Cloaks
- Cloaks of Vermin and Fish
- Clochan
- Clocking Time
- Clocks and Daggers
- Clocktower Mystery
- Clockwerx Tome 1
- Clockwerx Tome 2
- Clockwork Alchemist
- Clockwork Angel
- Clockwork at the Big Top
- Clockwork Boys
- Clockwork Butterfly
- Clockwork Canada
- Clockwork Chaos
- Clockwork City
- Clockwork Dawn
- Clockwork Deus
- Clockwork Dolls
- Clockwork Dwarf
- Clockwork Fairies
- Clockwork Fairy Tales: A Collection of Steampunk Fables
- Clockwork Gypsy
- Clockwork Imperium Stories 1-3
- Clockwork Mafia
- Clockwork Magician
- Clockwork Nessie
- Clockwork Nutcracker
- Clockwork Octopus
- Clockwork Orange
- Clockwork Phantom
- Clockwork Phoenix 2: More Tales of Beauty and Strangeness
- Clockwork Phoenix 3: New Tales of Beauty and Strangeness
- Clockwork Phoenix 4
- Clockwork Phoenix 5