R rated sci-fi books

5467 books

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

Sunspacer
Sunspacer
George Zebrowski
R
Alien Vacation
Alien Vacation
Bobbi J. G. Weiss; David Cody Weiss
R
Centauri Dawn
Centauri Dawn
Michael Ely
R
Doomsday
Doomsday
John Peel
R
Down to the Sea
Down to the Sea
William R. Forstchen
R
eXistenZ
eXistenZ
John Luther Novak
R
Ghostmaker
Ghostmaker
Dan Abnett
R
Icehouse
Icehouse
Christopher Curry
R
The House of Doors: Second Visit
The House of Doors: Second Visit
Brian Lumley
R
Luna Marine
Luna Marine
Ian Douglas
R
Mercadian Masques
Mercadian Masques
Francis Lebaron
R
Prophecy
Prophecy
Vance Moore
R
Excalibur: Renaissance
Excalibur: Renaissance
Peter David
R
Resistance
Resistance
Bill McCay
R
Seduction in Death
Seduction in Death
J. D. Robb
R
Blood Electric
Blood Electric
Kenji Siratori
R
The Phantom Menace
The Phantom Menace
Patricia C. Wrede
R
Death of a Neutron Star
Death of a Neutron Star
Eric Kotani
R
The Fear of God
The Fear of God
B. A. Chepaitis
R
The Lifeship
The Lifeship
Harry Harrison; Gordon R. Dickson
R
The Night Drifter
The Night Drifter
Susan Carroll
R
The Payback
The Payback
John Peel
R
The Right Hand of Evil
The Right Hand of Evil
John Saul
R
The Stowaway
The Stowaway
Melinda Metz
R
The Trench
The Trench
Steve Alten
R
The Wine of Dreams
The Wine of Dreams
Brian Stableford
R
A Black Hole in Neasden
A Black Hole in Neasden
David Sutherland
R
A Transatlantic Tunnel, Hurrah!
A Transatlantic Tunnel, Hurrah!
Harry Harrison
R
Purification
Purification
David Moody
R
Akiko in the Sprubly Islands
Akiko in the Sprubly Islands
Mark Crilley
R