Adult 18+ sci-fi books

30978 books

Tracker and the Spy
Tracker and the Spy
D. Jackson Leigh
PG-13
The Birth of a New Republic
The Birth of a New Republic
Jack Williamson; Miles J. Breuer, M.D.
PG
The Hell Planet
The Hell Planet
E. C. Tubb
PG
Fractured Time
Fractured Time
Michael D'Ambrosio
PG-13
Mrs. Walker's Bubble
Mrs. Walker's Bubble
Jacqueline M. Culver
G
First Port of Call
First Port of Call
Elizabeth Jordan
PG-13
An End to Bugling
An End to Bugling
Edmund G. Love
PG-13
The High Priestess
The High Priestess
Peter Krausche
R
The Quest for Cush
The Quest for Cush
Charles Saunders
G
The Star Pirate
The Star Pirate
A. C. Winfield
PG-13
The Double-Minded Man
The Double-Minded Man
Rachel Cosgrove Payes
PG-13
Hero Driver
Hero Driver
Alfred Coppel
PG
How John Bull Lost London; Or, The Capture of the Channel Tunnel
How John Bull Lost London; Or, The Capture of the Channel Tunnel
'Grip'
PG-13
Split Second
Split Second
Nick Baker
PG-13
The Galactic Troubadours
The Galactic Troubadours
A. M. Lightner
PG-13
The Bridge to Reedlick
The Bridge to Reedlick
Bill Bache Brown
PG-13
Irindy: An Island Divided
Irindy: An Island Divided
R. Marie Cluff
PG
Embers: A Winter Tale
Embers: A Winter Tale
Frank Baker
PG
The Vicious Case of the Viral Vaccine
The Vicious Case of the Viral Vaccine
Roberta Baxter; Pendred Noyce
PG-13
Legacies
Legacies
Deborah Dorchak; Wendi Kelly
PG-13
Eruption!
Eruption!
Jack Wells
PG-13
Boy Versus Rat Dog
Boy Versus Rat Dog
Justin D'Ath
PG-13
Secret Superhero
Secret Superhero
Justin D'Ath
PG-13
The Dark Glass
The Dark Glass
March Cost
PG-13
Stone Cold Past
Stone Cold Past
Shea Berkley
PG-13
Drums Along the Amazon
Drums Along the Amazon
Victor Norwood
PG-13
The Other Side of the Sun
The Other Side of the Sun
Paul Capon
PG
The Day I Died
The Day I Died
Walter Harris
PG-13
Apocalypse Blue
Apocalypse Blue
Mitch Goldman
PG-13
Trials of the Warmland
Trials of the Warmland
Gaddy Bergmann
PG-13