R rated sci-fi books

5467 books

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

Time to Time
Time to Time
Don Pendleton
R
Starship Salvager
Starship Salvager
Jarom Strong
R
The Moon-Keepers
The Moon-Keepers
Brian Parvin
R
The God-Fearer
The God-Fearer
Dan Jacobson
R
Looking for the Aardvark
Looking for the Aardvark
Sheri S. Tepper
R
Orphans
Orphans
Ed Naha
R
Some Things Never Die
Some Things Never Die
Robert Morgan
R
The Window
The Window
Jeanette Ingold
R
Challenge Met
Challenge Met
Charles Ingrid
R
Celestial Hit List
Celestial Hit List
Charles Ingrid
R
Breakdown
Breakdown
Ed Naha
R
Deep Freeze
Deep Freeze
Zach Hughes
R
Persepolis Rising
Persepolis Rising
James S. A. Corey
R
Ten Little Indians
Ten Little Indians
E. Patrick Murray
R
The Redemption of Time
The Redemption of Time
Baoshu
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One
One
Richard Bach
R
The Tommyknockers
The Tommyknockers
Stephen King
R
The Plains
The Plains
Gerald Murnane
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Blood and Roses
Blood and Roses
Sharon Bainbridge
R
The 40-Minute War
The 40-Minute War
Janet Morris; Chris Morris
R
A Promise to Catie
A Promise to Catie
Judd Holt
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Sisterhood of Dune
Sisterhood of Dune
Kevin J. Anderson;Brian Herbert
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Wind from the Abyss
Wind from the Abyss
Janet Morris
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Kit's Book
Kit's Book
C. J. Mills
R
The Hourglass Crisis
The Hourglass Crisis
Lonn Hoklin
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The Artifice of Infinity
The Artifice of Infinity
J. Gardner Hodder
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Lyrica
Lyrica
Thomas F. Monteleone
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Cradle Kill
Cradle Kill
S. A. Hillman
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The Lemurian Stone
The Lemurian Stone
Stephen Hickman
R
Memorymakers
Memorymakers
Brian Herbert; Marie Landis
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