- Sextrap DungeonKurt Knox
- Shadow ChaserSimon Tudhope
- Shadow of the GiantsIan Livingstone
- Shadow of the SwastikaDoug Wilhelm
- Shadow on the SandJoe Dever
- Shadow over NordmaarDezra Despain
- Shadow over the MarshAllen Sharp
- ShadowcastleMichael Gray
- Shadows of DoomStephen Thraves
- Shadows over SylvaniaJonathan Green
- Shakespeare Vs. Cthulhu: What Dreams May ComeJonathan Green
- Shark Attack!Richie Chevat
- She-Hulk Goes to MurderworldTim Dedopulos
- Sherlock Holmes: The Case of the Dancing BeesAllen Sharp
- Shinderg's TombRichard Barron
- Shines the NameMark Acres
- Ship of GhoulsR.L. Stine
- Shipwrecked on Mystery IslandRoy Wandelmaier
- ShockwaveJack Heath
- Shop Till You Drop ... Dead!R.L. Stine
- Shopping MaulVictoria Hancox
- ShowdownShannon Gilligan
- Siege of SardathKeith P. Phillips
- Siege of the TowerKem Antilles
- Silicon SabotageJohn Norton
- Silver WingsR.A. Montgomery
- Sir Arthur Conan Doyle's Adventures of Sherlock HolmesRyan Jacobson
- Skateboard ChampionEdward Packard
- Skeleton PrincessDana Aros
- Ski Trip TroubleCylin Busby
- Skull IslandSteve Barlow
- Sky LordMartin Allen
- Sky-Jam!Edward Packard
- Slammers Down!Todd Johnson
- Slaughter at MasadaKyle B. Stiff
- Slaughter Mountain RunJoe Dever
- Slaves of DevronPeter Milligan
- Slaves of the AbyssPaul Mason, Steven Williams
- Slaves of the MireMartin Charbonneau
- Sleeping BeautyJessica S. Gunderson
- Sleeping Beauty and the PrinceJim Razzi
- Sleeping Beauty: Vampire SlayerMaureen McGowan
- Smog & AmbuscadeMartin Barnabus Noutch
- Smoke JumperR.A. Montgomery
- Snake InvasionDoug Wilhelm
- Snare Your Crush in Three Easy StepsEmma Carlson Berne
- Sneak Behind Enemy LinesLaurie B. Clifford
- Snow WhiteNita Martin
- Snow White and the Seven DwarfsJessica S. Gunderson
- Snow White in the Enchanted ForestJim Razzi
- Snowboard RacerAnson Montgomery
- So Not the Drama!Acton Figueroa
- So You Wanna: Start a Food or Beverage BusinessDouglas Raggio
- Soapy Bimbo Car Wash FantasyAmanda Clover
- Soccer StarEdward Packard
- Sol InvictusKyle B. Stiff
- Solar WarSamuel Isaacson
- Sold on SalesDanith Clausen
- Something's in the WoodsRichard Brightfield
- Song of the Dark DruidJosepha Sherman