PG rated sci-fi books

3620 books

Sci-fi books with mild content — safe for most readers. May contain mild peril or fantasy violence but nothing graphic.

Slaves of Sleep
Slaves of Sleep
L. Ron Hubbard
PG
The Vortex Blaster
The Vortex Blaster
Edward E. Smith
PG
The Great Fire of London
The Great Fire of London
Peter Ackroyd
PG
The Schizogenic Man
The Schizogenic Man
Raymond Harris
PG
The Ring of Ritornel
The Ring of Ritornel
Charles L. Harness
PG
Doctor Who and the Sunmakers
Doctor Who and the Sunmakers
Terrance Dicks
PG
Rama II
Rama II
Arthur C. Clarke; Gentry Lee
PG
A Plague of Pythons
A Plague of Pythons
Frederik Pohl
PG
No Enemy But Time
No Enemy But Time
Michael Bishop
PG
Through the Eye of a Needle
Through the Eye of a Needle
Hal Clement
PG
The Witch of Lagg
The Witch of Lagg
Ann Cheetham
PG
The Legion of Space
The Legion of Space
Jack Williamson
PG
The Humanoid Touch
The Humanoid Touch
Jack Williamson
PG
Homegoing
Homegoing
Frederik Pohl
PG
Half Past Human
Half Past Human
T. J. Bass
PG
The Sensitives
The Sensitives
Herbert Burkholz
PG
The Savage Web
The Savage Web
Sharon Whitby
PG
Path to Conquest
Path to Conquest
Howard Weinstein
PG
The End of Eternity
The End of Eternity
Isaac Asimov
PG
The Einstein Intersection
The Einstein Intersection
Samuel R. Delany
PG
Earthlight
Earthlight
Arthur C. Clarke
PG
Sea Siege
Sea Siege
Andre Norton
PG
Night of Masks
Night of Masks
Andre Norton
PG
Star Man's Son
Star Man's Son
Andre Norton
PG
Kiss of the Cobra
Kiss of the Cobra
Peter Tremayne
PG
Before the Coffee Gets Cold: A Heartfelt Novel Exploring Regret, Redemption and Closure From a Magical Café
Before the Coffee Gets Cold: A Heartfelt Novel Exploring Regret, Redemption and Closure From a Magical Café
Toshikazu Kawaguchi
PG
Allison's Baby
Allison's Baby
Mike Stone (Melvin Berger)
PG
Tomorrow, When the War Began
Tomorrow, When the War Began
John Marsden
PG
Narabedla Ltd.
Narabedla Ltd.
Frederik Pohl
PG
The Alien Upstairs
The Alien Upstairs
Pamela Sargent
PG