R rated sci-fi books

5467 books

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

The Totally Gnarly Adventures of the Galactically Bitchin' Comet Sweat!
The Totally Gnarly Adventures of the Galactically Bitchin' Comet Sweat!
Edward Beekman-Myers
R
Ignition
Ignition
Kevin J. Anderson; Doug Beason
R
The Unraveling
The Unraveling
Jasper T. Scott
R
Chaos Come Again
Chaos Come Again
Wilhelmina Baird
R
Hunt the Heavens
Hunt the Heavens
Chris Bunch
R
The Waterworks
The Waterworks
E. L. Doctorow
R
Darksong
Darksong
Jean Simon
R
Ravenor
Ravenor
Dan Abnett
R
Aletrel: Arular's Time
Aletrel: Arular's Time
Ian James Vale
R
Pound of Flesh
Pound of Flesh
Dan Willis
R
Side Jobs
Side Jobs
Jim Butcher
R
Zaragoz
Zaragoz
Brian Stableford
R
The Undying Fire
The Undying Fire
H. G. Wells
R
The Planet Masters
The Planet Masters
Allen L. Wold
R
Dark Blood
Dark Blood
John Meaney
R
The Last Enemy
The Last Enemy
Barry B. Longyear
R
The Jehovah Contract
The Jehovah Contract
Victor Koman
R
The Legend of the Starmaker
The Legend of the Starmaker
Phillip John Edwards
R
Callahan's Legacy
Callahan's Legacy
Spider Robinson
R
Something's Alive on the Titanic
Something's Alive on the Titanic
Robert Serling
R
Shattered Glory
Shattered Glory
Seth Ring
R
Portal to Nova Roma
Portal to Nova Roma
J.R. Mathews
R
Eyes of the Void
Eyes of the Void
Adrian Tchaikovsky
R
Unhuman
Unhuman
Dmitry Sheleg
R
The Collected Works of Philip K. Dick
The Collected Works of Philip K. Dick
Philip K. Dick
R
Walking Words
Walking Words
Eduardo Galeano
R
Up and Down the Scratchy Mountains
Up and Down the Scratchy Mountains
Laurel Snyder
R
Patternmaster
Patternmaster
Octavia E. Butler
R
Beyond the Great South Wall: The Secret of the Antarctic
Beyond the Great South Wall: The Secret of the Antarctic
Frank Savile
R
The Path of the Portal Mage: An Apocalypse LitRPG Adventure
The Path of the Portal Mage: An Apocalypse LitRPG Adventure
Scott Dressur
R