R rated sci-fi books

5467 books

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

From the Heart of the Storm
From the Heart of the Storm
Kurt R. A. Giambastiani
R
One-Man Army
One-Man Army
John Cutter
R
Frek and the Elixir
Frek and the Elixir
Rudy Rucker
R
Global War
Global War
James D. Macdonald; Debra Doyle
R
Haunted Sister
Haunted Sister
Lael Littke
R
Hero for Hire
Hero for Hire
Donna Tauscher
R
Hovey's Deception
Hovey's Deception
Philip Ross
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The Lost Destroyer
The Lost Destroyer
Vaughn Heppner
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In Fluid Silence
In Fluid Silence
G. W. Tirpa
R
Thirdspace
Thirdspace
Peter David
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Katie's War
Katie's War
Michael Anderle; Michael Todd
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Interception
Interception
Graham Watkins
R
Jinn
Jinn
Matthew B. J. Delaney
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Kiss of Death
Kiss of Death
Elizabeth Moore
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Lai and the Headhunters
Lai and the Headhunters
John Vornholt
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Liberty's Crusade
Liberty's Crusade
Jeff Grubb
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Loch Ness Leap
Loch Ness Leap
Dean Wesley Smith; Kristine Kathryn Rusch
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Lummox: The Evolution of a Man
Lummox: The Evolution of a Man
Mike Magnuson
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Medusa
Medusa
Chris Morris; Janet Morris
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Merilynn
Merilynn
Tamara Thorne
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Medea
Medea
Miranda Seymour
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The Mars One Crew Manual
The Mars One Crew Manual
Kerry Mark Joels
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Mortal Engines
Mortal Engines
Philip Reeve
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Night Beasts
Night Beasts
T. W. Stetson
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Mystery Valentine
Mystery Valentine
Barton Carol
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Nightmare Park
Nightmare Park
Linda Hoy
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October Moon
October Moon
Michael Scott
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Omega
Omega
Jack McDevitt
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A. I. Assault
A. I. Assault
Vaughn Heppner
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Primal Rage: The Avatars
Primal Rage: The Avatars
John Vornholt
R