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.

An Unusual Angle
An Unusual Angle
Greg Egan
PG
Cat in a Crimson Haze
Cat in a Crimson Haze
Carole Nelson Douglas
PG
Final Diagnosis
Final Diagnosis
James White
PG
The Twin Dilemma
The Twin Dilemma
Eric Saward
PG
The Rise of Io
The Rise of Io
Wesley Chu
PG
The Haunted Cave
The Haunted Cave
Christopher Pike
PG
Viking Warrior Rebel
Viking Warrior Rebel
Asa Maria Bradley
PG
The Starstone
The Starstone
Grace Chetwin
PG
Wheel of Stars
Wheel of Stars
Andre Norton
PG
Callanish
Callanish
William Horwood
PG
On the Bright Road
On the Bright Road
Paddy Figgis
PG
Jason and the Lizard Pirates
Jason and the Lizard Pirates
Gery Greer; Bob Ruddick
PG
The Golden One
The Golden One
Deborah Chester
PG
A Round Trip to the Year 2000; Or A Flight Through Time
A Round Trip to the Year 2000; Or A Flight Through Time
William Wallace Cook
PG
Sleep
Sleep
Kat Meads
PG
Brother to Shadows
Brother to Shadows
Andre Norton
PG
Hulk
Hulk
Peter David
PG
Islands in the Sky
Islands in the Sky
Arthur C. Clarke
PG
Into the Horsebutt Nebula
Into the Horsebutt Nebula
Chet Gottfried
PG
The Hitchhiker's Guide to the Galaxy: The Original Radio Scripts
The Hitchhiker's Guide to the Galaxy: The Original Radio Scripts
Douglas Adams
PG
Memory
Memory
K. J. Parker
PG
Kindred Rites
Kindred Rites
Katharine Eliska Kimbriel
PG
The Brugan
The Brugan
Stephen Moore
PG
Bloody Bones
Bloody Bones
Pam Yelverton
PG
Mel Oliver and Space Rover on Mars
Mel Oliver and Space Rover on Mars
William Morrison
PG
Shock Wave
Shock Wave
Walt Richmond; Leigh Richmond
PG
The Long and Winding Road
The Long and Winding Road
Jeffrey J. Hoy
PG
Surviving Serendipity
Surviving Serendipity
Jacquelyn Sylvan
PG
American Goliath
American Goliath
Harvey Jacobs
PG
The Body Snatchers
The Body Snatchers
Jack Finney
PG