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.

A Sterkarm Kiss
A Sterkarm Kiss
Susan Price
PG
The Book of Spirits
The Book of Spirits
James Reese
PG
Heaven and Earth
Heaven and Earth
Nora Roberts
PG
The Untold
The Untold
William J. Grabowski
PG
Blood Retribution
Blood Retribution
David Thurlo; Aimée Thurlo
PG
The Fran That Time Forgot
The Fran That Time Forgot
Jim Benton
PG
Cowl
Cowl
Neal Asher
PG
Master of the Moon
Master of the Moon
Angela Knight
PG
Gossamyr
Gossamyr
Michele Hauf
PG
Inkheart
Inkheart
Cornelia Funke
PG
Tyrannosaur Canyon
Tyrannosaur Canyon
Douglas Preston
PG
In the Coils of the Snake
In the Coils of the Snake
Clare B. Dunkle
PG
The Spook's Secret
The Spook's Secret
Joseph Delaney
PG
The Hitchhiker's Guide to the Galaxy: Tertiary Phase
The Hitchhiker's Guide to the Galaxy: Tertiary Phase
Douglas Adams
PG
If You Decide To Go To The Moon
If You Decide To Go To The Moon
Faith McNulty
PG
The Quillan Games
The Quillan Games
D. J. MacHale
PG
Variable Star
Variable Star
Robert A. Heinlein; Spider Robinson
PG
Twilight Hunger
Twilight Hunger
Maggie Shayne
PG
Audacious: Ivy's Story
Audacious: Ivy's Story
Jude Watson
PG
Legacy
Legacy
James H. Schmitz
PG
The Invasion of the Body Snatchers
The Invasion of the Body Snatchers
Jack Finney
PG
The Price of Paradise
The Price of Paradise
Colin Brake
PG
Deliverer
Deliverer
C. J. Cherryh
PG
The Eye of the Giant
The Eye of the Giant
Christopher Bulis
PG
Wooden Heart
Wooden Heart
Martin Day
PG
Match of the Day
Match of the Day
Chris Boucher
PG
The Resurrection Casket
The Resurrection Casket
Justin Richards
PG
Tides of Darkness
Tides of Darkness
Aaron Rosenberg
PG
Spaceman Blues: A Love Song
Spaceman Blues: A Love Song
Brian Francis Slattery
PG
Marooned on Mars
Marooned on Mars
Lester del Rey
PG