- Wade Asher: Agent of Admiralty
- Waheela
- Wahie Loa -Il lungo ramo-
- Wahre Marsianer - Chronik der Sternenkrieger #8
- Wail of the Tempest
- Waisen des Alls
- Waiting
- Waiting For Martin
- Waiting Game
- Waiting on Humanity's Table
- Wake
- Wake Me If You're Out There
- Wake of the Nightshade
- Wake Of The Nightshade
- Wake of the Sun
- Wake of War
- Wake-Up Call
- Wakers
- Waking Nightmares
- Waking Up Different
- Waking Up My Giantess
- Waking Up Screaming
- Wakulla – lugar de presión bifásica recurrente
- Walcot
- Walk in Hell (The Great War, Book Two)
- Walk Like a Magician
- Walkabout
- Walkaway
- Walking a Fine Timeline
- Walking Back
- Walking in Darkness: a Miscellany of Sc-fi Shorts
- Walking the Virtch
- Wall of Peril (The Princess Maura Tales, Book 2: An Epic Fantasy Series)
- Wall of Victory (The Princess Maura Tales, Book 5: An Epic Fantasy Series)
- Wall Walker: Book 1 of the Mortal Perception Series
- Walls and Wonders
- Walls of Acid
- Walt vs the Space Flunkies
- Walter's Stupid Vacation
- Walther Thompson: Galactic Private Investigator
- Wampir z KC
- Wanderer
- Wanderer
- Wanderer - Extinction
- Wanderer - Origins
- Wanderer - Salvation
- Wanderer - Tainted Universe
- Wanderer Above the Sea of Fog
- Wanderer of Space
- Wanderer – Echoes of the Past
- Wanderer's Odyssey - Books 1 to 3
- Wanderers
- Wandering Monsters
- Wanderlust
- Wandl the Invader
- Wanted
- Wanted - 7 Fearless Engineers!
- Wanted A Home
- Wanted Rescuers
- Wanted The Hunters
- Wanted The Trap
- Wanted: adventurer
- Wanted: hero
- War & Space: Recent Combat
- War 2.2
- War Begins Book One
- War Bride
- War Chant 1: Sieger
- War Chant 2: Eroberer
- War Dogs
- War Drums
- War Drums of Eagle King
- War Factory
- War Fish
- War Games
- War in Space 1: The Aliens vs The Earthlings
- War is Hell
- War Machine
- War of Mars: Natalia's Story
- War of Mars: Zerra's Memory
- War of Souls
- War Of Stars 3 of 3
- War of the Maps
- War of the Titans
- War of the Wild West
- War of the Worlds Volume 2, The Nest
- War of the Worlds — Publix Press
- War of the Worlds: Battleground Australia
- War of Two Worlds
- War Plan Grey
- War Through The Pines
- War Torn: A Dystopian Science Fiction Story
- War Without End
- War Worlds
- War Zone (Star Crusades: Mercenaries Book 5)
- War's End: The Storm
- War-Bot
- War-Gods of the Void
- Ward
- Wards of Faerie
- Ware Hawk
- Warehouse 13
- Warhead
- Warlock's Brew
- Warlord of Antares [Dray Prescot #37]
- Warlord of Erberos
- Warlord of Kor
- Warlord of Mars (Annotated)
- Warlord: Arrival, Tales of Nevaeh, Vol 6, Journal 1
- Warlord: The Rise, Tales of Nevaeh, Vol. VII, Journal 2
- Warlords of Cunaxa (Star Legions: The Ten Thousand Book 3)
- Warm Bodies
- Warm Worlds and Otherwise
- Warning from the Stars
- Warning! Malfunctions May Occur
- Warning: Dangerous Dreams
- Warp
- Warp Drive, Patent Pending
- Warpact!
- Warpaint
- Warpworld
- Warpworld: Final Storm
- Warpworld: Forbidden Revelations
- Warpworld: Full Series