- Silent Enemy
- Silent From The Shadows
- Silent Guns
- Silent Insanity
- Silent Kill
- Silent Magic
- Silent Night
- Silent Night: A Christmas Collection
- Silent Panic
- Silent Partner: The Graphic Novel
- Silent Rage: Volume 1
- Silent Shadows
- Silent Shadows (Tagalog Edition)
- Silent Society
- Silent Tears
- Silent War
- Silent Watcher
- Silent Wave
- Silent Witnesses
- Silent Woods
- Silenzio Assoluto
- Silex 'M'
- Silex-M
- Silhouette
- Silk and Lace
- Silk Road
- Silk Stalker - A Sexy BBW Romance Thriller Novelette from Steam Books
- Silk Stocking Road
- Silken Whispers: Casefile: The Vault
- Silken Whispers: Casefile: The Yemeni Proposal
- Silks & Swords
- Silly ABCD's
- Silly Americans
- Silva Porto e Livingstone: Manuscripto de Silva Porto Encontrado no Seu Espólio
- Silvania
- Silvapithecus Americanus: The Discovery of a New Species
- Silvaste's Spear
- Silver Absolution
- Silver and Gold
- Silver and Gold: A Story of Luck and Love in a Western Mining Camp
- Silver and Hawkins
- Silver Borne
- Silver Canyon
- Silver Canyon
- Silver City Massacre
- Silver Creek
- Silver Foxes
- Silver Gulch Feud
- Silver Hammer, Golden Cross: Book Six of The Circle of Ceridwen Saga
- Silver Rifle: The Girl Trailer
- Silver Spoon
- Silver Wings, Iron Cross
- Silver-Tipped Death
- Silverado
- Silverback
- Silverbrook
- Silvermane
- Silverspur, The Mountain Heroine: A Tale of the Arapaho Country
- Silverstrand
- Silverthorn
- Silvertip
- Silvertip's Chase
- Silvertip's Roundup
- Silvertip's Search
- Silvertip's Strike
- Silvertip's Trap
- Silvia Green issue #1 Someone Suspicious
- Simba and the Stone of Conquest
- Simba and the Treasure of Ocal
- Simba The Fireboy and The Aliens of Yttrium
- Simba The Fireboy: The Rise of a Young Warrior
- Simeon's Promise II
- Simmer
- Simon
- Simon & Sedef
- Simon Eady
- Simon Eady: The Teenage Spy
- Simon Fink
- Simon the Coldheart
- Simon the Jester
- Simple erreur
- Simple Fun Ways of Living Naturally
- Simples Contes des Collines
- Simply Another Mission
- Simply Heaven
- Simply Shorts Too
- Simply Trigger
- Simpson Desert. La collina del potere
- Simpson Woods
- Simran's Diary
- Simsalahicks! (Band 1) - Die freche Hexe und das Zauberpony
- Simya Academy
- Sin and Error Pining and Other Seasonal Tales from iHero Entertainment
- Sin límites
- Sin Nature
- Sin nombre
- Sin of Batista
- Sin rumbo
- Sin Sentido
- Sin sentimientos (Colección Oeste)
- Sin.n.e
- Sinbad the Sailor (Illustrated)
- Sinbad the Sailor - and other stories from the Arabian Nights (Illustrated by Edmund Dulac)
- Sinbad: Rogue of Mars
- Since I Can Remember: Holding My Past in My Heart Forever
- Since Never
- SINClair 2
- Sincronia riflessa
- Sindbad en el país del sueño
- Sing Roses for Me
- Singamia 1.1
- Singing Creek
- Singing Wires
- Single Bound
- Single in Saudi
- Singoalla
- Singularity
- Sinister
- Sinister Paradise
- Sink
- Sink Or Capture
- Sink The Zinc
- Sinkhole Justice
- Sinking Sand; Grab the Pole
- Sinner Collection: The Deathbringer
- Sinner's Revenge
- Sinner, Sailor