R rated sci-fi books

5467 books

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

A Stitch in Time
A Stitch in Time
Andrew J. Robinson
R
Across the Universe
Across the Universe
Pamela Sargent; George Zebrowski
R
False Colors
False Colors
William R. Forstchen; Andrew Keith
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Obsidian Fate
Obsidian Fate
Diana G. Gallagher
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Psychic Kitty
Psychic Kitty
Cathy East Dubowski
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Star in the Mirror
Star in the Mirror
Cherie Bennett; Jeff Gottesfeld
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13th Legion
13th Legion
Gav Thorpe
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A Coming of Age
A Coming of Age
Timothy Zahn
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Alien Blood
Alien Blood
Chris Archer
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Inquisition
Inquisition
Anselm Audley
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The Crippled Angel
The Crippled Angel
Sara Douglass
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Star Brothers
Star Brothers
Ben Bova
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Birth of an Age
Birth of an Age
James BeauSeigneur
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The Blood of the Land
The Blood of the Land
Noel-Anne Brennan
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Warhorse
Warhorse
Timothy Zahn
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Buckaroo Banzai
Buckaroo Banzai
Earl Mac Rauch
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Triplet
Triplet
Timothy Zahn
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Deliver Us from Evil
Deliver Us from Evil
Stephen Smoke
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The Heir Apparent
The Heir Apparent
Joel Rosenberg
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Event Horizon
Event Horizon
Steven E. McDonald
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Far Beyond the Stars
Far Beyond the Stars
Steve Barnes (I)
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Flash Gordon: The Ice Monster
Flash Gordon: The Ice Monster
Al Williamson
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Lily's Ghosts
Lily's Ghosts
Laura Ruby
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Help, I'm Trapped in Santa's Body
Help, I'm Trapped in Santa's Body
Todd Strasser
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If God Wanted Us to Travel ...
If God Wanted Us to Travel ...
David Brenner
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Keeper of the City
Keeper of the City
Peter Morwood; Diane Duane
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K-Niner: Dog of Doom!
K-Niner: Dog of Doom!
Jim Davis; Michael S. Teitelbaum
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Lizard People
Lizard People
M. T. Coffin
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An Island Called Moreau
An Island Called Moreau
Brian W. Aldiss
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Salem Goes to Rome
Salem Goes to Rome
Mark Dubowski; Cathy East Dubowski
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