R rated sci-fi books
5467 booksSci-fi books with mature content including explicit sex, graphic violence, or strong language. For adult readers.
Shadow Academy
R
The D. Case or the Truth About the Mystery of Edwin Drood
R
Secret of the Lizard People
R
The Price of Freedom
R
Death Watch
R
Bella Arabella
R
The Chess Garden, or, The Twilight Letters of Gustav Uyterhoeven
R
Heathcliff: The Return to Wuthering Heights
R
Woman Without a Shadow
R
The Anubis Murders
R
Shadowbreed
RWe Were Soldiers: A Military Sci-Fi Novel of Galactic War and Sacrifice
R
The Favored Child
R
The Room
R
The Khan's Persuasion
R
Tangerine
R
The Essence of Evil
R
The Company Man
R
Iceman
R
Warriors for the Working Day
R
Black River
R
Son of the Endless Night
R
Minotaur
R
Dance of the Dead
R
A Touch of Genius
R
The House in the Snow
R
Sleipnir
R
Akiko and the Intergalactic Zoo
R
Seasons of Plenty
R
Savage
R