- S I, the Trilogy
- S pokorou a nadějí
- S'il suffisait d'aimer
- S, F & H
- Soldier Where Art Thou?
- S1-R3N
- Sa Compagne Vierge
- Saat des Himmels
- Saber
- Saberhagen The Early Tales
- Saberhagen The Later Tales
- Sabia Zeilor (Ediția română)
- Sabikui Bisco, Vol. 1 (light novel)
- Sabikui Bisco, Vol. 2 (light novel)
- Sabin: Alien Warrior
- Sabina Saves the Future: Complete Trilogy
- Sabina's Expedition to Stop the Apocalypse
- Sabina's Quest to Open the Portal in the Sun Pyramid
- Sabinas jakt på den heliga graalen
- Saboteur: Star Wars (Darth Maul)
- Sabre Black
- Sac'a'rith: Rebirth
- Sacerdotisa de la Eggstone
- Sacraments of Fire
- Sacred Charge
- Sacred Chronicles
- Sacred Ground
- Sacred Tenets
- Sacred Water, Book 2, The Time Before
- Sacrifice
- Sacrifice to the Cause
- Sacrifices
- Sad Grey Eyes on Tharsis
- Sadie Walker Is Stranded
- Sadness Belongs to the Universe
- Safari bianco
- Safari World
- Safe Island
- Safehold Boxed Set 1
- Safespace
- Safety Zone (Lunar Colony VI #1)
- Saffron
- Saga of the Scout
- Sagas of Dusk and Luster
- Sail the Comet Roads and Other Dreams
- Sailing Bright Eternity
- Sailing the Cosmos
- Sailing The Styx
- Sailor to a Siren
- Saint Bob l'incroyant
- Saint Nicholas University
- Saint Valentine's Day
- Saint Vladnitz
- Salad Days
- Sale temps pour un Mutant
- Sales Talk
- Saline
- Saline Solution
- Saline Solution and two more stories
- Salmon for Satan
- Salmon Run Collection (Salmon Run - Books 1-3)
- Salomé Book 1: The Prophecy
- Salomé Book 2: Revelation
- Saltos y asaltos del piloto Jim
- Salut Delcano !
- Saluti dal lago di Mandelbrot
- Salvage
- SALVAGE MERC ONE
- Salvage Rites
- Salvage Trouble
- Salvage-5
- Salvage-5 (Another Mission)
- Salvage-5: Final Mission
- Salvaged
- Salvagers
- Salvaging Outer Space: Laruge's Salvage Journal 1
- Salvation
- Salvation Day
- Salvation Lost
- Salvation Polarity
- Salvation's Tapestry
- Salvi
- Sam & Samantha
- Sammelband 3 SF-Abenteuer: Die Raumgarde / Mission Schwarzes Loch / Der galaktische Faust
- Sammelband 3 SF-Abenteuer: Randwelten / Raumschiff Caesar / Erster Offizier
- Sammelband 5 SF-Abenteuer: Raumkriege und Wurmloch-Passagen
- Sammelband 6 SF-Abenteuer: Krieger der Galaxis
- Sammelband Chronik der Sternenkrieger 22 Romane Commander Reilly #1-22
- Sammelband 6 SF-Abenteuer: Krieger der Galaxis
- Sammelband Chronik der Sternenkrieger 22 Romane Commander Reilly #1-22
- Sammelband Die Wormhole-Affäre Band 1-6 Sechs SF-Romane.
- Sams Sohn Saga
- Sams Sohn Teil 1 und 2
- Sams Sohn Teil 3
- Sams Sohn Teil 4
- Sams Sohn Teil 5
- Samuel and the Soul Collector
- Sanación "The Black Hole Mission"
- Sanación II “We Are the Aliens”
- Sanction
- Sanctuary (Chronicles of the Imagination Book 2)
- Sanctuary of the Damned
- Sanctuary Planet: Agents of ISIS, Book 4
- Sanctuary: A Collection of Short Stories
- Sanctum 92
- Sand Doom and five more stories
- Sand Fall: The Complete Trilogy
- Sand Glass
- Sand Historie
- Sand Part 5: A Rap Upon Heaven’s Gate
- Sandaara
- Sanders Experiment
- Sanders Experiment II: Rivalry
- Sandokán
- Sandrider
- Sands of Dune
- Sandstorm Box Set: The Complete Dystopian Science Fiction Series
- Sandstorm på Mars
- Sandstorm: A Dystopian Science Fiction Story
- Sandworld
- Sandworms of Dune
- Sang de Mirial (Le)
- Sang de pierre
- Sang pour sang
- Sangria
- Sangue Maremmano. L'alba di una cittadina
- Sanguines
- Sanguis veneta
- Sankor Sangres: Mercenary For Hire
- Sans dessus dessous
- Sans dessus dessous – suivi d'annexes