R rated sci-fi books

5467 books

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

Darksiders
Darksiders
Neil Hunter
R
The Memory Cathedral
The Memory Cathedral
Jack Dann
R
Worlds Apart
Worlds Apart
Joe Haldeman
R
Brothers
Brothers
Ben Bova
R
The Jigsaw Woman
The Jigsaw Woman
Kim Antieau
R
The Reprisal
The Reprisal
Jerry Ahern
R
Rebels in Arms
Rebels in Arms
Ben Weaver
R
Vengeance of Orion
Vengeance of Orion
Ben Bova
R
Saucer
Saucer
Stephen Coonts
R
Nicoji
Nicoji
M. Shayne Bell
R
Destination: Mutiny
Destination: Mutiny
Deborah Chester
R
King Death's Garden
King Death's Garden
Gwyneth Jones
R
Thongor Against the Gods
Thongor Against the Gods
Lin Carter
R
Return to Honor
Return to Honor
Doug Beason
R
Firestreak
Firestreak
Neil Hunter
R
Aggressor Six
Aggressor Six
Wil McCarthy
R
Becoming Human
Becoming Human
Valerie J. Freireich
R
Out of the House of Life
Out of the House of Life
Chelsea Quinn Yarbro
R
Walpurgis III
Walpurgis III
Mike Resnick
R
Sideshow
Sideshow
Mike Resnick
R
Jinx on a Terran Inheritance
Jinx on a Terran Inheritance
Brian Daley
R
One Million Tomorrows
One Million Tomorrows
Bob Shaw
R
Carve the Sky
Carve the Sky
Alexander Jablokov
R
The Prince of Morning Bells
The Prince of Morning Bells
Nancy Kress
R
The Flies of Memory
The Flies of Memory
Ian Watson
R
The Time Shifter
The Time Shifter
John Peel
R
Nightworld
Nightworld
F. Paul Wilson
R
Dark Horizon
Dark Horizon
K. W. Jeter
R
Created By
Created By
Richard Christian Matheson
R
Buying Time
Buying Time
Joe Haldeman
R