Adult 18+ sci-fi books

31211 books

Release
Release
Annie Nicholas
PG-13
Extinction Age
Extinction Age
Nicholas Sansbury Smith
PG-13
The Nightmare Stacks
The Nightmare Stacks
Charles Stross
PG-13
The Broken God
The Broken God
David Zindell
PG-13
Fallen Angel
Fallen Angel
Kim Wilkins
PG-13
The Wraiths of Will and Pleasure
The Wraiths of Will and Pleasure
Storm Constantine
PG-13
The Rainbow Serpent
The Rainbow Serpent
Trevor Pryce; Joel Naftali
PG-13
Labyrinth of Evil
Labyrinth of Evil
James Luceno
PG-13
Muses of Terra
Muses of Terra
Rob Steiner
PG-13
Blonde & Blue
Blonde & Blue
Trina M. Lee
PG-13
Kingdom of Darkness
Kingdom of Darkness
Andy McDermott
R
Shadows of the Midnight Sun
Shadows of the Midnight Sun
Graham Brown; Spencer J. Andrews
PG-13
Blood, Sweat & Tears
Blood, Sweat & Tears
G. Michael Hopf
PG-13
Freddy and the Flying Saucer Plans
Freddy and the Flying Saucer Plans
Walter R. Brooks
PG-13
Harper and the Circus of Dreams
Harper and the Circus of Dreams
Cerrie Burnell
PG-13
Eagle in Exile
Eagle in Exile
Alan Smale
PG-13
The Empress and the Acolyte
The Empress and the Acolyte
Jane Fletcher
PG-13
Exile
Exile
R. A. Salvatore
PG-13
Collidescope
Collidescope
Grace Chetwin
R
The Upper Room
The Upper Room
Mary Monroe
R
The Adventure of the Ectoplasmic Man
The Adventure of the Ectoplasmic Man
Daniel Stashower
PG
River God
River God
Wilbur Smith
R
Sandeagozu
Sandeagozu
Janann V. Jenner
PG-13
People of the Lightning
People of the Lightning
Kathleen O'Neal Gear; W. Michael Gear
PG-13
Maelstrom
Maelstrom
Austen Andrews
R
On the Run
On the Run
Christie Golden
R
Vertigo
Vertigo
G. S. Jennsen
PG-13
Borderlands
Borderlands
Skye Melki-Wegner
PG-13
The Wide World's End
The Wide World's End
James Enge
R
Salt & Stone
Salt & Stone
Victoria Scott
R