R rated sci-fi books

5467 books

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

Bet You Can't!
Bet You Can't!
Diana G. Gallagher
R
Pawn of the Omphalos
Pawn of the Omphalos
E. C. Tubb
R
Synaptic Manhunt
Synaptic Manhunt
Mick Farren
R
The Last Stand of the DNA Cowboys
The Last Stand of the DNA Cowboys
Mick Farren
R
The Armageddon Crazy
The Armageddon Crazy
Mick Farren
R
The Bird of Time
The Bird of Time
George Alec Effinger
R
Light on the Sound
Light on the Sound
S. P. Somtow
R
The Carpathians
The Carpathians
Janet Frame
R
Deathstalker War
Deathstalker War
Simon R. Green
R
Beneath the Tree of Heaven
Beneath the Tree of Heaven
David Wingrove
R
The Well of Darkness
The Well of Darkness
Randall Garrett; Vicki Ann Heydron
R
The Drift Wars
The Drift Wars
Brett James
R
Showdown at Centerpoint
Showdown at Centerpoint
Roger MacBride Allen
R
What's Wrong with Tamara?
What's Wrong with Tamara?
D. A. Fowler
R
Otto in the Time of the Warrior
Otto in the Time of the Warrior
Charlotte Haptie
R
Masters of Flux & Anchor
Masters of Flux & Anchor
Jack L. Chalker
R
The Captain's Daughter
The Captain's Daughter
Peter David
R
Men of War
Men of War
John Schettler
R
Extraterrestrial
Extraterrestrial
J. N. Williamson
R
Star Trek IV: The Voyage Home
Star Trek IV: The Voyage Home
Vonda N. McIntyre
R
Fortune's Light
Fortune's Light
Michael Jan Friedman
R
Fire in a Faraway Place
Fire in a Faraway Place
Robert Frezza
R
The Flowers of Adonis
The Flowers of Adonis
Rosemary Sutcliff
R
Run to Earth
Run to Earth
Tom McCaughren
R
The Centrifugal Rickshaw Dancer
The Centrifugal Rickshaw Dancer
William John Watkins
R
A Game of Battleships
A Game of Battleships
Toby Frost
R
Andromeda's Choice
Andromeda's Choice
William C. Dietz
R
Shattered Echoes
Shattered Echoes
Barbara Shapiro
R
Thraxas at the Races
Thraxas at the Races
Martin Millar
R
Kaduna Memories
Kaduna Memories
Brian Daley; James Luceno
R