R rated sci-fi books

5467 books

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

And Loving It!
And Loving It!
William Johnston
R
Altered Carbon
Altered Carbon
Richard K. Morgan
R
Broken Angels
Broken Angels
Richard K. Morgan
R
Thirteen
Thirteen
Richard K. Morgan
R
Capital Offense
Capital Offense
Armin Shimerman
R
The Fire Worm
The Fire Worm
Ian Watson
R
Beyond the Stars
Beyond the Stars
William Shatner
R
A Glimpse of Infinity
A Glimpse of Infinity
Brian Stableford
R
Firemask
Firemask
Chris Bunch
R
Masque of a Savage Mandarin
Masque of a Savage Mandarin
Philip Robinson
R
Converts
Converts
Ian Watson
R
Mike Mars Flies the Dyna-Soar
Mike Mars Flies the Dyna-Soar
Donald A. Wollheim
R
Mike Mars and the Mystery Satellite
Mike Mars and the Mystery Satellite
Donald A. Wollheim
R
Eagle-Sage
Eagle-Sage
David B. Coe
R
Emissary
Emissary
Fiona McIntosh
R
Children of The Moon
Children of The Moon
L. M. Brickwood
R
The Fourth World
The Fourth World
Dennis Danvers
R
Marrow
Marrow
Robert Reed
R
Plasm
Plasm
Charles Platt
R
A Boy and His Tank
A Boy and His Tank
Leo Frankowski
R
Soldiers of Paradise
Soldiers of Paradise
Paul Park
R
The Queen's Squadron
The Queen's Squadron
R. M. Meluch
R
Mutant 59 The Plastic Eater
Mutant 59 The Plastic Eater
Kit Pedler; Gerry Davis
R
The Winter Dance Party Murders
The Winter Dance Party Murders
Greg Herrige
R
Epitaph
Epitaph
Pinnacle Entertainment Group
R
Mefisto in Onyx
Mefisto in Onyx
Harlan Ellison
R
The Divinity Student
The Divinity Student
Michael Cisco
R
The Haunting
The Haunting
Lynn Harnett; Rodman Philbrick
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Ingenious Pain
Ingenious Pain
Andrew Miller
R
The Toymaker
The Toymaker
Jeremy De Quidt
R