R rated sci-fi books

5467 books

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

Rats, Bats & Vats
Rats, Bats & Vats
Dave Freer; Eric Flint
R
Hader and the Colonel
Hader and the Colonel
Donna Barr
R
The Gates of Hades
The Gates of Hades
John Gregory Betancourt
R
Ravenshadow
Ravenshadow
Win Blevins
R
Stone Song
Stone Song
Win Blevins
R
Red Moon
Red Moon
Michael Cassutt
R
The Invasion
The Invasion
John Hay (1928)
R
The Dark Wing
The Dark Wing
Walter H. Hunt
R
The Dying Time
The Dying Time
Thomas S. Gressman
R
Vitals
Vitals
Greg Bear
R
Shadow Planet
Shadow Planet
William Shatner
R
Permanence
Permanence
Karl Schroeder
R
The Resurrection of Anne Hutchinson
The Resurrection of Anne Hutchinson
Robert Rimmer
R
Archangel
Archangel
Mike Conner
R
The Lake
The Lake
Ruby Jean Jensen
R
Robbie Packford: Alien Monster
Robbie Packford: Alien Monster
Heather Sander
R
The Unremembered Empire
The Unremembered Empire
Dan Abnett
R
Year of the Cloud
Year of the Cloud
Kate Wilhelm; Ted Thomas
R
Growing Up in Tier 3000
Growing Up in Tier 3000
Felix C. Gotschalk
R
T2: Infiltrator
T2: Infiltrator
S. M. Stirling
R
Batman: No Man's Land
Batman: No Man's Land
Greg Rucka
R
The Sky So Big and Black
The Sky So Big and Black
John Barnes
R
The Wild Boy
The Wild Boy
Warren Rochelle
R
Chindi
Chindi
Jack McDevitt
R
Terrarium
Terrarium
Scott Russell Sanders
R
Necropolis
Necropolis
Douglas Wojtowicz
R
Quiet, the Tin Can Brains are Hunting!
Quiet, the Tin Can Brains are Hunting!
Stephen William Theaker
R
Summerblood
Summerblood
Tom Deitz
R
Daughter of The Dark
Daughter of The Dark
Louise Cusack
R
Earth Dreams
Earth Dreams
Janet Morris
R