- Con el frío del viento
- Con perdón de los terrícolas
- Con rit
- Conan: Stargazer Alien Mail Order Brides #8 (Intergalactic Dating Agency)
- Conception (Part I)
- Conception - A Novelette
- Concerto spirituale
- Conclusion
- Concordance of Steel
- Concours ADELI de la meilleure nouvelle d'anticipation sur l'intelligence artificielle édition 2019
- Concours ADELI de la meilleure nouvelle de d'anticipation sur l'intelligence artificiellle
- Concrete Chaos
- Concrete Chaos Book 2
- Concrete Chaos Book 3
- Concubines and Obelisks
- Condenados (Trilogía Condenados 1)
- Condenados - Vol 1
- Condenados - Vol 2
- Conditionally Human
- CONDOMINIO VULCANIZZATI - un thriller napoletano in un condominio post-apocalittico isolato da 2000 ...
- Condomnauts
- Conduit 2
- Conduit 3
- Conduits
- Cone Of Silence
- Confederation (In Her Name, Book 5)
- Confessa
- Confessions of a Jane Austen Addict
- Confessions of a Sentient War Engine
- Confessions of a Time Traveler
- Confiar nas Trevas
- Confidence Game
- Confins
- Conflict
- Conflict of Honors
- Confliction
- Conflits
- Conflits - Tome 2
- Conflits - Tome 3
- CONFLUENCE
- Confluence
- Confluence - The Trilogy
- Conflux
- Confrontation
- Congressional Acts of 2015
- Conh: The Teague Bride Experiment (Intergalactic Dating Agency)
- Connect
- Connected To The Stars
- Connecting the Dots in Pointillist Paintings
- Connection
- Connection Part I
- Connector
- Connexion: Le cycle des dômes
- Conquered
- Conquered Mate
- Conqueror
- Conquerors' Heritage
- Conquerors' Legacy
- Conquerors' Pride
- Conquest
- Conquest and Empire
- Conquest of Earth
- Conquest Over Time
- Conquest over Time
- Conquistador
- Conrad
- Conscience of the King
- Consciencia
- Conscious Dreamer Series, Books 1, 2, & 3
- Conscript
- Conscripts: The First Book Of The Off World Trilogy
- Consensus at Aditi
- Consequences: A Retrieval Artist Novel
- Consider Us Even
- Consignment
- Consigue un TUP, viajarás
- Consorts of Heaven
- Conspiracy
- Conspiracy (Orphans of the Void #1)
- Conspiracy Game
- Conspiracy on Callisto
- Conspirators
- Constable Evans' Fancy
- Constant
- Constellation
- Constellation - In ferne Welten
- Constellation of the Devil
- Constellation XXI
- Constellation: Ashes to Ashes
- Constellation: Nightlife
- Constellation: Security Breach
- Consumed
- Contact (Final Colony 2)
- Contact: Sarah's Landing Series, Vol. I
- Contact: Sarah's Landing Vol. I
- Contacto
- Contacto en la Cruz de Fuego
- Contactos peligrosos
- Contagion
- Contagious
- Contagious and Deathly Contagious
- Contagious Chaos
- Containment
- Containment (Stories of Singularity 2)
- Containment: The Complete Series
- Contains Multitudes
- Contaminant Six
- Contamination
- Contamination (Zombies Are Human, Book One)
- Contamination Crew
- Contato em Fiery Cross
- Contato Imediato
- Contatto a Fiery Cross
- Contes du Dr Sam
- Contingency
- Contingency Plan
- Continuum
- Continuum (Riven Worlds Book One)
- Continuum: Beacon 2.5
- Contra la gravedad
- Contra la oscuridad
- Contraataque
- Contraband from Otherspace
- Contract of Betrayal: Spectras Arise Trilogy, Book 2
- Contract of Defiance
- Contract of War: Spectras Arise Trilogy, Book 3
- Contravene
- Control
- Control de transmisión
- Controlled Descent
- Conundrum
- Convention Confusion
- Conventions of War
- Convergence - Journey to Nyorfias, Book 1
- Convergence Point
- Convergences macrocosmiques
- Convergent
- Conversations
- Conversations with the Ai-Naidar
- Conviction: A Spectras Arise Novella
- Convoy Duty
- Cook's Curious Christmas - A Fantasy
- Cookmancer Online: A LitRPG / GameLit Novel
- Cool Pursuit: Chaos Core Book 2