- Shuteye
- Shy Talent
- Si l'oiseau meurt
- Si me regalas tu tiempo
- Si Pembuat Jam Tangan: Sebuah Novel (Edisi Melayu)
- Siamo Qui
- Sibyl's Orb
- Sic Semper Tyrannis
- Sic Semper, Sic Semper, Sic Semper
- Sicarionauts
- Sicarius Soul
- Sick Cruising
- Sick Little Puppies
- Sick Machine
- Side Hustle Tango
- Side Life
- Sideshow
- Sideslip
- Sidespace (Aurora Renegades Book One)
- Sidestep
- Sidewise in Time
- Sidney's Escape
- Sidéral
- Sieben fielen vom Himmel – Originalausgabe
- Sieg dem Unbekannten
- Siege Line
- Siege Of Fate
- Siege of Mortania
- Siege of Praetar
- Siege of Stars: Book One of The Sigil Trilogy
- Sieges and Silverware
- Siehe, ein fahles Pferd...: Band 1
- Sierra Sky
- Sierżant
- Siete días de ruido
- Siete piedras para resistir o caer (Saga Outlander)
- Sigarette terrestri
- Sight Beyond Epik Sight
- Sight of Proteus
- Sightseeing - Planet der Wüste
- Sigil
- Sigma Draconis IV
- Sign of Chaos
- Sign of the Unicorn
- Signal Boost
- Signal der Raumgötter
- Significance: a Science Fiction Short Story
- Signs of the End of the World
- Silas Morlock
- Silas: Alien Warrior
- Sileise Raided
- Silence
- Silence Ends
- Silence In Heaven
- Silence in Solitude: Book II of the Roads of Heaven
- Silence of the Schwag
- Silence on Second Street
- Silenced: A Cybil Lewis SF Mystery
- Silent Altitudes
- Silent Blade
- Silent Dances (StarBridge #2)
- Silent Manifest
- Silent Night, Final Night
- Silent Order: Ark Hand
- Silent Order: Axiom Hand
- Silent Order: Eclipse Hand
- Silent Order: Fire Hand
- Silent Order: Image Hand
- Silent Order: Iron Hand
- Silent Order: Master Hand
- Silent Order: Omnibus One
- Silent Order: Royal Hand
- Silent Order: Wasp Hand
- Silent Order: Wraith Hand
- Silent Rising
- Silent Sights
- Silent Songs (StarBridge #5)
- Silhouette
- Silicon Strike
- Silicon Sunset
- Silkwash
- Silo
- Silo-trilogie
- Silver Bound
- Silo-trilogie
- Silver Bound
- Silver Bullet: Book III of the Order of the Air
- Silver Cane Chronicles
- Silver Hands
- Silver Linings
- Silver Mirrors
- Silverback
- Silverfish Part 1
- Silverfish Part 2
- Silverfish Part 3
- Silverfish Part 4
- Silverskugga
- Silverspöet
- Silvia-Duett - Folge 13
- Simba and the Stone of Conquest
- Simba The Fireboy and The Aliens of Yttrium
- Simeon
- Simon Rack 1: Earth Lies Sleeping
- Simon Rack 2: Starcross
- Simons sista resa
- Sims
- Simulated
- Simulations
- Sin egen tanke
- Sinai
- Sinait
- Sinclair Academy - 01
- Sindbad, The Thirteenth Voyage
- Sinew and Steel and What They Told
- Sinfín
- Sing
- Sing a Samba Galactica
- Sing the Mice
- Singer
- Singer from the Sea
- Single Wired Female
- Singular Irregularity - Time Travel Gone Terribly Wrong
- Singularidad #3253
- Singularity
- Singularity Sky