- Sottomondo
- Sou O Teu Papão
- Soucouyant - A Caribbean Vampire
- Soul Burn
- Soul Collector
- Soul Cycle (Twisted Souls #3)
- Soul Eaters
- Soul Fate
- Soul Fisher
- Soul Food
- Soul Half Empty
- Soul Hungry: A Horror Story
- Soul Mates
- Soul Price
- Soul Rippers
- Soul Sacrifice
- Soul Screams
- SOUL SEEKER
- Soul Survivor
- Soul Survivors
- Soul Traitor
- SoulChaser: Earthbound
- Soulless
- Soulless Eyes
- Soulless in Seattle
- Soulmates
- Souls for Carrion
- Souls for the Master
- Souls of Darkness
- Souls of Norcross: A Railroad Town With an Afterlife
- Souls of Silica
- Souls Of The Dead
- Souls of the Southern Stars
- Soulsnatcher
- Sour Candy
- Sour Milk
- Sour Milk
- South Carolina - Island In the Sea of States
- South of Okeechobee
- South Seas Cong
- Southern Blood
- Southern Charm (Max Porter, #2)
- Southern Gothic - Das Grauen wohnt nebenan
- Southern Hunter
- Southern Monsters
- Sovereign: Altered Destiny
- Sow
- Soñando cuentos y pesadillas
- Space Eldritch
- Space Eldritch II: The Haunted Stars
- Space Odyssey: Beyond the Universe
- Space Sharks
- Space Snot
- Space Void
- Space Whale
- Space Zombie
- Spaghetti Zombie
- Spam de Mono Azul
- Spanky
- Spare Parts
- Sparkle - A Tale of the Devil
- Sparkles and Blood
- Sparkling in Sunlight
- Sparks
- Sparky the Spunky Robot
- Sparrow's Valley
- Speak Evil: Tales to Die For
- Speak for the Dead
- Speaks the Nightbird
- SpecFicNZ Shorts: "The Shelver" by Piper Mejia, "The Bookshop" by Jane Percival, and "The Box" by I....
- Special Collection
- Special Dead
- Special Messenger
- Specimen 313
- Specimenul
- Specter Files (A Novella)
- Specters
- Spectra Magazine - Issue 3
- Spectra Magazine - Issue 4
- Spectra Magazine - Issue 5
- Spectral Evidence
- Spectral Shadows: Three Supernatural Novellas
- SPECTRUM
- Spectrum
- Spectrum 3
- Speculations I
- Speed Bump
- Speed Demons
- Spell Check
- Spellbound: a Tale of Magic, Mystery & Murder
- Spelunkers
- Spider
- Spider and the Fly
- Spider Girl
- Spider Mansion
- Spider Soup
- Spider Spun: A Novelette
- Spider-Cursed: a supernatural horror short story
- Spiders In Your Mind I
- Spiders Inside
- Spiel mit Folgen
- Spille
- Spine: A Collection of Twisted Tales
- Spinechillers Volume 1
- Spinechillers Volume 2
- Spines