R rated sci-fi books

5467 books

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

The Forge of God
The Forge of God
Greg Bear
R
Giants' Star
Giants' Star
James P. Hogan
R
The Hamlet Trap
The Hamlet Trap
Kate Wilhelm
R
Frontera
Frontera
Lewis Shiner
R
Sweet, Sweet Poison
Sweet, Sweet Poison
Kate Wilhelm
R
A Fire in the Sun
A Fire in the Sun
George Alec Effinger
R
The Exile Waiting
The Exile Waiting
Vonda N. McIntyre
R
Calling All Monsters
Calling All Monsters
Chris Westwood
R
The Folk of the Air
The Folk of the Air
Peter S. Beagle
R
Action Stations
Action Stations
William R. Forstchen
R
The Last Human
The Last Human
Tom De Haven
R
Superguy
Superguy
T. Jackson King
R
Indomitable
Indomitable
W. C. Bauers
R
The Will to Battle
The Will to Battle
Ada Palmer
R
Warlock
Warlock
Andrew Cartmel
R
One Is the Sun
One Is the Sun
Patricia Nell Warren
R
Transit
Transit
Ben Aaronovitch
R
Before the Cradle Falls
Before the Cradle Falls
James F. David
R
Cat's Cradle: Time's Crucible
Cat's Cradle: Time's Crucible
Marc Platt
R
22nd Century Blues
22nd Century Blues
Steve Walker
R
Omega Sub
Omega Sub
Michael Jahn
R
The Silver City
The Silver City
Pamela Belle
R
Mind-Hold
Mind-Hold
Wilanne Schneider Belden
R
You Bright and Risen Angels
You Bright and Risen Angels
William T. Vollmann
R
The Island
The Island
Guy N. Smith
R
Covenant with Death
Covenant with Death
Cindy Victor
R
Burden of Proof
Burden of Proof
John G. Hemry
R
Bearheart: The Heirship Chronicles
Bearheart: The Heirship Chronicles
Gerald Vizenor
R
Angel Trails, Double Lives
Angel Trails, Double Lives
Soma Vira
R
Bureau of Lost
Bureau of Lost
Mike Ford; John Peel
R