- Seas of Red
- Season of Wonder
- Season's Greetings
- Seasons Between Us: Tales of Identities and Memories
- Second Chance (TrainReads, #2)
- Second Chances
- Second Errata
- Second Honeymoon
- Second Wave: Rise of the ShadowKin
- Seconda giustificazione: la macchina
- Seconde chance
- Secret Insurrection: Stories from a Novel of a Future Time
- Secret Lives of Books
- Secret Mammal's Business
- Secrets
- Secrets of the Nire
- Secrets: Tales of Deadly Deception
- Seditious Sun
- Seed
- Seeded
- Seedlings
- Seeing Stars
- Seeking a Fairy Goddoctor
- Segredos do Universo
- Seifenblasen
- Selected Short Stories
- Selected Short Stories Featuring Analog Memory
- Selected Short Stories Featuring Cinderella Shoes
- Selected Short Stories Featuring Cockfight
- Selected Short Stories Featuring Cry Wolf
- Selected Short Stories Featuring New Corpse Smell
- Selected Short Stories Featuring Save As
- Selected Stories of H. G. Wells
- Selena's Escape
- Self-Reference Engine
- Selfies From the End of the World: Historical Accounts of the Apocalypse
- Seltsame Geschichten
- Semper Lupa
- Semper Simul
- Senna Versus Schumacher And Other Formula One Rivalries That Never Happened
- Sense of Wonder
- Sensibleman Episode 1: The Origin
- Sensorium
- Sensory Alterations
- Sensual Sexual Romance
- Sentaku: A Short Story Anthology
- Sentenza Capitale
- Sentience
- Sentiments à vendre
- Seond Landing and four more stories Vol I
- Sepulcro de canciones (Flash Relatos)
- Seren Valley Tales.
- Serendipity
- Serial Killer vs. E-Merica
- Settling the World
- Seven By Jay: Seven Short Stories
- Seven Days in May
- Seven of Infinities
- Seven Sexy Cowboy Robots
- Seven Skies
- Seven Tales in Amber
- Seven Tales of Blood and Beauty
- Sex and Death
- Sex and Love in the Long Night: A Tale of Romantic Sex
- Sex on His Mind
- Sexual Chemistry and Other Tales
- Seçim Piyangosu
- SF Boxed Set: 140+ Intergalactic Action Adventures, Dystopian Novels & Lost World Classics
- SF Shorts
- Sh 2.0 - Dreamscapes- I racconti perduti- Volume 21
- Sha!Sha!Sha!
- Shades Within Us: Tales of Migrations and Fractured Borders
- Shadow Dancers
- Shadow Dreams
- Shadow Dancers
- Shadow Dreams
- Shadow For Hire Books 1-4: LitRPG Adventure Fantasy
- Shadow Hunter
- Shadow of the Dominion
- Shadow of Utopia (Vol. 2 - The Resistance)
- Shadow of Utopia (Vol. 3 - The Invasion)
- Shadow People
- Shadowed Things - Stories of Murder, Mayhem, and Monsters
- Shadowrun: World of Shadows
- Shadows & Reflections
- Shadows Beneath
- Shadows In the Flames
- Shadows in the Garden and Other Stories
- Shadows In Time
- Shadows of Death
- Shadows of the New Sun
- Shadows of the Void Books 1 - 10
- Shady Hazy And The Subliminal Criminal
- Shallow Space: Factions
- Shallow Waters Vol.1
- Shaolin vs Vikings
- Shapers of Worlds
- Shapers of Worlds Volume II
- Shards
- Shatter the Wall
- Shattered Space
- Shattering Worlds
- She Arrived Without A Song: A Jukebox Story
- Shelley's Rose
- Shelter
- Shelter: Zero
- Shen Ji and the Celestial
- Shere Khan
- Sheri S Tepper SF Gateway Omnibus
- Sherlock Holmes e il Circolo dell'Arca