- Space Pug
- Space Rangers
- Space Rats
- Space Rats and Rebels (The Complete Serialized Novel)
- Space Rats and Rebels: Fools Rush In (Episode 1 of a 3 Part Serial)
- Space Rats and Rebels: Last Chance (Episode 3 of a 3 Part Serial)
- Space Rats and Rebels: Princess Problems (Episode 2 of a 3 Part Serial)
- Space Rats on Monster Planet
- Space Recall: Star Warriors
- Space Refugees: Star Warriors
- Space Rogues Omnibus One (Books 1-3)
- Space Rogues Omnibus Two (Books 4-6)
- SPACE Science Fiction Stories Sammelband
- Space Shooter Octopus
- Space Snot
- Space Soldiers
- Space Station 1
- Space Station 1 (Serapis Classics)
- Space Station Acheron
- Space Station Down
- Space Suits
- Space Train
- Space Tramp
- Space Trip
- Space Trippers Book 4: Will Work For Parts
- Space Trippers Book 5: Don't Even Ask
- Space Tripping with the Shredded Orphans
- Space Troopers - Collector's Pack
- Space Troopers - Folge 3
- Space Troopers - Folge 4
- Space Troopers - Folge 5
- Space Troopers Next - Folge 1: Neu Terra
- Space Troopers Next - Folge 2: Kalter Entzug
- Space Troopers Next - Folge 4: Der Hüter
- Space Troopers Next - Folge 5: Boarding
- Space Troopers Next - Sammelband: Folgen 1-5
- Space Unicorn Blues
- Space Vixen Trek Episode 13: The Final Falafel
- Space Vulture
- Space Warrior AD 60,400.111102
- Space Warrior AD: BOOK IV
- Space Warrior Beauty
- Space Whale
- Space Winners
- Space: 1975
- Spaceberg
- Spaceboy Mars: Star Warriors
- Spacecarrier
- Spaced Out
- Spacefarer: Fanatic's Bane
- Spacehart
- Spaceheim
- Spacehounds of I P C
- Spaceland
- Spaceman No.3, Sent by God
- SpaceMan: A Post-Apocalyptic Thriller (The SpaceMan Chronicles Book 1)
- Spacepaw
- Spaceport Atlantis
- Spaceports & Spidersilk April 2013 issue
- Spaceports & Spidersilk April 2014
- Spaceports & Spidersilk January 2014
- Spaceports & Spidersilk July 2014
- Spaceports & Spidersilk Oct. 2013
- Spacer (Star Minds Lone Wolves)
- Spacer Tales: The Alien Monks
- Spacer Tales: The Explorer
- Spacer Tales: The Haunted Hatchway
- Spacer Tales: The Lonely Engineer
- Spacer Tales: The Space Monster of Sector 17
- Spaceship Down
- Spaceship in the Woods
- Spaceship Medic
- Spacesteader One
- Spacial Delivery
- Spade
- Spare Parts
- Spark
- Spark of Life
- Sparkles: A Short Story
- Sparks of Rebellion (Side Quest #6)
- Sparks: Tales from the Provinces
- Sparrow & Tulip
- Sparrow Song
- Sparrowhawk Legacy
- Spartan X
- Sparx and Arrows
- Spatial Militia
- Spatium Upended - A Trilogy: Book 1
- Spawn
- Spawn of Darkness
- Spawn of Jupiter
- Spawn of the Stars
- Spazio prima frontiera
- Spazio Profondo
- SPB: Super Powered Being
- Speak
- Speak No Evil
- Speaker for the Dead
- Speaker of the Shakk
- Spear's Journey
- Spec The Halls: Volume 1
- Special Deliverance
- Special Delivery: Answering The Call
- Special Delivery: EMT Service for the Super Powered
- Special Of The Week (Short Story)
- Special Patrol Service
- Special Trek
- Specials
- Specie Dominante
- Specie dominante
- Species 5319: First Contact
- Species 5319: Salvation
- Specimen
- Specimen #882
- Specimen 959
- Specimens
- Spectacular Tales II: Another Science Fiction and Fantasy Collection
- Spectacular Tales III
- Spectacular Tales: A Science Fiction and Fantasy Collection
- Specter of the Past: Star Wars (The Hand of Thrawn)
- Specter of the White Death (Salmon Run - Book 5)
- Specters in the Storm
- Spectra Magazine - Issue 1
- Spectra Magazine - Issue 2
- Spectra Magazine - Issue 3
- Spectra Magazine - Issue 4
- Spectra Magazine - Issue 5
- Spectras Arise Trilogy: Omnibus Edition
- Spectre of El Dorado
- Spectrum
- Spectrum 3
- Spectrum of a Forgotten Sun
- Speculative Encounters: New Stories From the Slipstream
- Speculative Journeys
- Sped-Bot
- Speed's End
- Spell of the Magi
- Spells & Stardust
- Spellslinger
- Spelunkers
- Sperm Donor for a Cosmic Paradox