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 War of the Wenuses
The War of the Wenuses
C. L. Graves; E. V. Lucas
R
Diamonds Are Forever
Diamonds Are Forever
Ryk E. Spoor; Eric Flint
R
The House on the Bluff
The House on the Bluff
Elena Dorothy Bowman
R
Mississippi Roll
Mississippi Roll
Kevin Andrew Murphy; John Jos. Miller; Stephen Leigh; Cherie Priest; David D. Levine; Carrie Vaughn
R
Twinmaker
Twinmaker
Sean Williams
R
The Brides of Aberdar
The Brides of Aberdar
Christianna Brand
R
The Time Chariot
The Time Chariot
T. Earl Hickey
R
The Return
The Return
Zach Hughes
R
Chasing Orion
Chasing Orion
Richard Barron, II
R
Strange Comes the Emissary
Strange Comes the Emissary
L. Dalton
R
Possessions
Possessions
James A. Moore
R
Thraxas at War
Thraxas at War
Martin Millar
R
One King, One Soldier
One King, One Soldier
Alexander C. Irvine
R
Rule
Rule
J. E. Bright
R
The Tawdry Yellow Brick Road
The Tawdry Yellow Brick Road
David Bischoff
R
The Rogue's Hour
The Rogue's Hour
Scott Ciencin
R
On Fire's Wings
On Fire's Wings
Christie Golden
R
eXistenZ
eXistenZ
Christopher Priest
R
The Lebo Coven
The Lebo Coven
Stephen Mark Rainey
R
Rolling Thunder
Rolling Thunder
Don Pendleton
R
The Dark Path
The Dark Path
Walter H. Hunt
R
Cellular
Cellular
Pat Cadigan
R
Legacy
Legacy
Matthew Farrer
R
Overstars Mail: Imperial Challenge
Overstars Mail: Imperial Challenge
Roberta Gellis
R
Neurolink
Neurolink
M. M. Buckner
R
A Cold Summer Night
A Cold Summer Night
Trystam Kith
R
Tainted Blood
Tainted Blood
James M. Thompson
R
Traitors
Traitors
Kristine Kathryn Rusch
R
Invasion from Space
Invasion from Space
Matthew C. Bradford
R
The Highlander's Vow
The Highlander's Vow
Barbara Longley
R