R rated sci-fi books

5467 books

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

Dungeon Empire
Dungeon Empire
Playwars Aka Alex S Weber
R
The Warrior Who Carried Life
The Warrior Who Carried Life
Geoff Ryman
R
Sentience
Sentience
Terry A. Adams
R
Cobra Bargain
Cobra Bargain
Timothy Zahn
R
Let's Put the Future Behind Us
Let's Put the Future Behind Us
Jack Womack
R
The Ganymede Club
The Ganymede Club
Charles Sheffield
R
The Rival
The Rival
Kristine Kathryn Rusch
R
The Resistance
The Resistance
Kristine Kathryn Rusch
R
Necroscope IV: Deadspeak
Necroscope IV: Deadspeak
Brian Lumley
R
The 37th Mandala
The 37th Mandala
Marc Laidlaw
R
The Nature of Smoke
The Nature of Smoke
Anne Harris
R
Headcrash
Headcrash
Bruce Bethke
R
The Dove Looked In
The Dove Looked In
Gael Baudino
R
PsyKosis
PsyKosis
Wilhelmina Baird
R
Dead Boys
Dead Boys
Richard Calder
R
Flux
Flux
Stephen Baxter
R
The Probability Broach
The Probability Broach
L. Neil Smith
R
Voice of the Whirlwind
Voice of the Whirlwind
Walter Jon Williams
R
Sideshow
Sideshow
Sheri S. Tepper
R
The Ragged World
The Ragged World
Judith Moffett
R
Relatives
Relatives
George Alec Effinger
R
Orbital Resonance
Orbital Resonance
John Barnes
R
Find the Changeling
Find the Changeling
Gregory Benford; Gordon Eklund
R
A Spaceship for the King
A Spaceship for the King
Jerry Pournelle
R
Farewell Horizontal
Farewell Horizontal
K. W. Jeter
R
Elvissey
Elvissey
Jack Womack
R
Death Qualified: A Mystery of Chaos
Death Qualified: A Mystery of Chaos
Kate Wilhelm
R
Correspondence
Correspondence
Sue Thomas
R
Climbing Olympus
Climbing Olympus
Kevin J. Anderson
R
Assemblers of Infinity
Assemblers of Infinity
Kevin J. Anderson; Doug Beason
R