Adult 18+ sci-fi books

31474 books

Lilu's Book
Lilu's Book
Jan Bozarth
PG-13
Saturnalia
Saturnalia
John Maddox Roberts
PG-13
Star Cursed
Star Cursed
Jessica Spotswood
PG-13
Mucho Mojo
Mucho Mojo
Joe R. Lansdale
PG-13
A Fire Upon the Deep
A Fire Upon the Deep
Vernor Vinge
PG-13
Hunters' Moon
Hunters' Moon
Debra Doyle; James D. Macdonald
PG-13
Escape from Ice Mountain
Escape from Ice Mountain
Gareth P. Jones
PG-13
A Sword for Kregen
A Sword for Kregen
Kenneth Bulmer
PG-13
Traitor Angel
Traitor Angel
H. David Blalock
PG-13
Chasm City
Chasm City
Alastair Reynolds
PG-13
The Good, the Bad, and the Fuzzy
The Good, the Bad, and the Fuzzy
Kirk Scroggs
PG-13
Urchin of the Riding Stars
Urchin of the Riding Stars
M. I. McAllister
R
Sky Road
Sky Road
Ann Tonsor Zeddies
PG-13
The Hero from Otherwhere
The Hero from Otherwhere
Jay Williams
PG-13
Arrow's Flight
Arrow's Flight
Mercedes Lackey
PG-13
The Hammer of the Sun
The Hammer of the Sun
Michael Scott Rohan
PG-13
The Change-Child
The Change-Child
Jane Louise Curry
PG-13
Stuff and Things and What Boredom Brings
Stuff and Things and What Boredom Brings
Rue Volley
PG-13
Saving the World: The Best of Maximum Ride
Saving the World: The Best of Maximum Ride
James Patterson
PG-13
The Shamer's War
The Shamer's War
Lene Kaaberbol
PG-13
Tristan
Tristan
Jordan Summers
PG-13
Pale Fallen Angel, Part 3
Pale Fallen Angel, Part 3
Hideyuki Kikuchi
PG-13
Pale Fallen Angel, Part 4
Pale Fallen Angel, Part 4
Hideyuki Kikuchi
PG-13
Tyrant's Stars, Part 4
Tyrant's Stars, Part 4
Hideyuki Kikuchi
PG-13
The Ether: Vero Rising
The Ether: Vero Rising
Laurice E. Molinari
PG-13
Greta and the Lost Army
Greta and the Lost Army
Chloe Jacobs
R
The Shadow Cadets of Pennyroyal Academy
The Shadow Cadets of Pennyroyal Academy
M. A. Larson
PG-13
The Empty Ones
The Empty Ones
Robert Brockway
PG-13
Invoking Darkness
Invoking Darkness
Jeanne Cavelos
PG-13
Rise of the Arcane Fire
Rise of the Arcane Fire
Kristin Bailey
PG-13