Adult 18+ sci-fi books

31370 books

Men of War
Men of War
John Schettler
R
The Powder of Life
The Powder of Life
Paul Miles Schneider
PG-13
Soul Chase
Soul Chase
Anne Hope
PG-13
The Last Oasis
The Last Oasis
Sue Pace
R
Informed Sources: Day East Received
Informed Sources: Day East Received
Willard Bain
PG-13
The Runaway
The Runaway
Kate O'Hearn
PG-13
Rapture
Rapture
Brenna Lyons
PG-13
Hope and Faith
Hope and Faith
Rue Volley
PG-13
Investing Well (In Supersonic Spaceships!)
Investing Well (In Supersonic Spaceships!)
Raymond Bean
PG-13
Dinosaur Boy Saves Mars
Dinosaur Boy Saves Mars
Cory Putman Oakes
PG-13
My Tempting Highlander
My Tempting Highlander
Maeve Greyson
PG-13
Riding the Centipede
Riding the Centipede
John Claude Smith
PG-13
Henry Hunter and the Cursed Pirates
Henry Hunter and the Cursed Pirates
John Matthews
PG-13
Kushiel's Avatar
Kushiel's Avatar
Jacqueline Carey
Hard R
The Vengeance of Masks
The Vengeance of Masks
Rosemary Edghill
PG-13
The Dreamosphere
The Dreamosphere
Laura Stoddard
PG-13
Gondez the Monk: A Romance of the Thirteenth Century
Gondez the Monk: A Romance of the Thirteenth Century
William Henry Ireland
R
Sophie Quire and the Last Storyguard
Sophie Quire and the Last Storyguard
Jonathan Auxier
PG-13
Island of Shadows
Island of Shadows
Peter Tremayne
G
The Empress of the Seven Oceans
The Empress of the Seven Oceans
Fiona Cooper
PG-13
Obsession in Death
Obsession in Death
J. D. Robb
PG-13
Forget About Midnight
Forget About Midnight
Trina M. Lee
PG-13
AntiHelix
AntiHelix
John Guy Collick
PG-13
Drift's Samurai Showdown
Drift's Samurai Showdown
John Sazaklis
PG-13
Fossilized Gods
Fossilized Gods
J Simon
PG-13
Fractured Days
Fractured Days
Rebecca Roland
PG-13
The Terran Consensus
The Terran Consensus
Scott Washburn
PG-13
Scars and Ashes
Scars and Ashes
Scott Nicholson; Joshua Simcox
PG-13
Shrivers
Shrivers
Jeb Kinnison
PG-13
Fountain of Forever
Fountain of Forever
K. D. Berry
PG-13