R rated sci-fi books

5195 books

Sci-fi books with mature content including explicit sex, graphic violence, or strong language. For adult readers.

Hyperion
Hyperion
Dan Simmons
R
Mr. Wicker's Window
Mr. Wicker's Window
Carley Dawson
R
Vampire World 3: Bloodwars
Vampire World 3: Bloodwars
Brian Lumley
R
The More I See You
The More I See You
Lynn Kurland
R
The Last Command
The Last Command
Timothy Zahn
R
Gods Just Want to Have Fun
Gods Just Want to Have Fun
Dylan Perry
R
Beyond the Shadows
Beyond the Shadows
Brent Weeks
R
Burning Wild
Burning Wild
Christine Feehan
R
A Garden in the Rain
A Garden in the Rain
Lynn Kurland
R
The Avatar Battle
The Avatar Battle
Chad Morris
R
Revolt and Rebirth
Revolt and Rebirth
Jefferson P. Swycaffer
R
Hunting Moon
Hunting Moon
Rebecca York
R
Under Siege
Under Siege
Jessica Meigs
R
Dark Predator
Dark Predator
Christine Feehan
R
Battle for Cannibal Island
Battle for Cannibal Island
Marianne Hering; Wayne Thomas Batson
R
White Wing
White Wing
Gordon Kendall
R
White Wing
White Wing
Shariann Lewitt; Susan Shwartz
R
The Gryphon Mage
The Gryphon Mage
Richard A. Knaak
R
Aliens vs. Humans
Aliens vs. Humans
T. Jackson King
R
Fight for Power
Fight for Power
Eric Walters
R
Straight Silver
Straight Silver
Dan Abnett
R
Orbus
Orbus
Neal Asher
R
Satori
Satori
Dennis Schmidt
R
War Among the Ruins
War Among the Ruins
Scott Washburn
R
The Warded Man
The Warded Man
Peter V. Brett
R
Storytellers
Storytellers
Julie Anne Parks
R
Wankh
Wankh
Jack Vance
R
No Rest for the Wicked
No Rest for the Wicked
Kresley Cole
R
Angels in Savannah: A Modern Day Fantasy
Angels in Savannah: A Modern Day Fantasy
C. J. Condon
R
Time-Fighters
Time-Fighters
Bernard King
R