R rated sci-fi books

5467 books

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

Prison of Ice
Prison of Ice
Dean R. Koontz
R
The Moon's Shadow
The Moon's Shadow
Catherine Asaro
R
In the Shadow of the Oak King
In the Shadow of the Oak King
Courtway Jones
R
Necroscope II: Vamphyri!
Necroscope II: Vamphyri!
Brian Lumley
R
Stunts
Stunts
Charles L. Grant
R
A Warlock in Whitby
A Warlock in Whitby
Robin Jarvis
R
I, Arnold
I, Arnold
Phil Janes
R
A Fling with a Demon Lover
A Fling with a Demon Lover
Kelvin Christopher James
R
Voyage from Yesteryear
Voyage from Yesteryear
James P. Hogan
R
The Doomed Planet
The Doomed Planet
L. Ron Hubbard
R
Virtual Light
Virtual Light
William Gibson
R
Villainy Victorious
Villainy Victorious
L. Ron Hubbard
R
The Ignored
The Ignored
Bentley Little
R
Deadly Friend
Deadly Friend
Diana Henstell
R
Spacecamp
Spacecamp
B. B. Hiller; Neil W. Hiller
R
Random Acts of Senseless Violence
Random Acts of Senseless Violence
Jack Womack
R
Heart of the Comet
Heart of the Comet
David Brin; Gregory Benford
R
Bloodchoice
Bloodchoice
Janice Harrell
R
Divina Trace
Divina Trace
Robert Antoni
R
The Cosmos Project
The Cosmos Project
Hilbert Hardy
R
Cyberstorm
Cyberstorm
Gloria Skurzynski
R
Hellflower
Hellflower
Rosemary Edghill
R
Exile
Exile
Michael P. Kube-McDowell
R
Wolf in the Fold
Wolf in the Fold
Simon R. Green
R
These Green Foreign Hills
These Green Foreign Hills
Roland J. Green
R
Sweet Blood
Sweet Blood
Pat Graversen
R
Mission: Tori
Mission: Tori
Johanna M. Bolton
R
Children of the Night
Children of the Night
Dan Simmons
R
The Boy from the Burren
The Boy from the Burren
Sheila Gilluly
R
Red Iron Nights
Red Iron Nights
Glen Cook
R