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 Wreck of the River of Stars
The Wreck of the River of Stars
Michael Flynn
R
Attack of the Clones
Attack of the Clones
R. A. Salvatore
R
Pattern Recognition
Pattern Recognition
William Gibson
R
The Earthborn
The Earthborn
Paul Collins
R
Finding Helen
Finding Helen
Colin Greenland
R
The Light Ages
The Light Ages
Ian R. MacLeod
R
The Vampire's Violin
The Vampire's Violin
Michael Romkey
R
Rally Point
Rally Point
David Sherman
R
Stranger Inside
Stranger Inside
Steven Krane
R
The Glasswrights' Test
The Glasswrights' Test
Mindy L. Klasky
R
Bitter Waters
Bitter Waters
Wen Spencer
R
Patriots in Arms
Patriots in Arms
Ben Weaver
R
Hell's Faire
Hell's Faire
John Ringo
R
Dark Symphony
Dark Symphony
Christine Feehan
R
The Course of Empire
The Course of Empire
Eric Flint; K. D. Wentworth
R
In the Hall of the Martian King
In the Hall of the Martian King
John Barnes
R
Tatja Grimm's World
Tatja Grimm's World
Vernor Vinge
R
Mark of Damnation
Mark of Damnation
James Wallis
R
Riders of the Dead
Riders of the Dead
Dan Abnett
R
The Last World War
The Last World War
Dayton Ward
R
Fantasy Life
Fantasy Life
Kristine Kathryn Rusch
R
Plague of Ice
Plague of Ice
T. H. Lain
R
Blood Money
Blood Money
C. L. Werner
R
Magneto
Magneto
Steven A. Roman
R
Breakdown
Breakdown
K. A. Applegate
R
Red Skull
Red Skull
Steven A. Roman; Stan Timmons
R
Isolation
Isolation
K. A. Applegate
R
A State of Disobedience
A State of Disobedience
Tom Kratman
R
The Book of Webster's
The Book of Webster's
J. N. Williamson
R
Air Ferrets Aloft
Air Ferrets Aloft
Richard Bach
R