R rated sci-fi books

5467 books

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

Rapture in Death
Rapture in Death
Nora Roberts
R
Live Free Or Die
Live Free Or Die
John Ringo
R
Double Jeopardy
Double Jeopardy
David Sherman; Dan Cragg
R
The Killing Ground
The Killing Ground
Graham McNeill
R
Dark Peril
Dark Peril
Christine Feehan
R
What Distant Deeps
What Distant Deeps
David Drake
R
Archangel's Consort
Archangel's Consort
Nalini Singh
R
Path of the Seer
Path of the Seer
Gav Thorpe
R
Shadow's Claim
Shadow's Claim
Kresley Cole
R
Betrayer
Betrayer
Aaron Dembski-Bowden
R
The Heretic
The Heretic
Tony Daniel; David Drake
R
No Other Story
No Other Story
Dr. Cuthbert Soup
R
The Dead Run
The Dead Run
Adam Mansbach
R
Monsters of the Earth
Monsters of the Earth
David Drake
R
Sleepless Knights
Sleepless Knights
Mark H. Williams
R
Tainted
Tainted
A. E. Rought
R
The Abominable
The Abominable
Dan Simmons
R
War of the Werelords
War of the Werelords
Curtis Jobling
R
The Ward
The Ward
S. L. Grey
R
To Dance with the Devil
To Dance with the Devil
Cat Adams
R
The War of the Grail
The War of the Grail
Geoffrey Wilson
R
The Ward
The Ward
Jordana Frankel
R
Dragon's Child
Dragon's Child
M. K. Hume
R
Everybody Sees the Ants
Everybody Sees the Ants
A. S. King
R
Kill Decision
Kill Decision
Daniel Suarez
R
Voyagers
Voyagers
Ben Bova
R
Privateers
Privateers
Ben Bova
R
The Last Command
The Last Command
Timothy Zahn
R
Spinneret
Spinneret
Timothy Zahn
R
Cobra
Cobra
Timothy Zahn
R