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.

The White Wolf
The White Wolf
Franklin Gregory
PG
The Woman Who Couldn't Die
The Woman Who Couldn't Die
Arthur Stringer
PG
Unnaturals #2: Escape from Lion's Head
Unnaturals #2: Escape from Lion's Head
Devon Hughes
PG
Best Destiny
Best Destiny
Diane Carey
PG
The Host
The Host
Peter R. Emshwiller
PG
Shadows on the Sun
Shadows on the Sun
Michael Jan Friedman
PG
Ark Two
Ark Two
Neal Barrett, Jr.
PG
The Man Who Mastered Time
The Man Who Mastered Time
Ray Cummings
PG
Cradle of the Sun
Cradle of the Sun
Brian Stableford
PG
Outlaws of Time: The Legend of Sam Miracle
Outlaws of Time: The Legend of Sam Miracle
N. D. Wilson
PG
Whostrology: A Time-Traveller's Almanac
Whostrology: A Time-Traveller's Almanac
Michael M. Gilroy-Sinclair
PG
Ayron IV
Ayron IV
Ray Thompson
PG
Aliena
Aliena
Piers Anthony
PG
Berenice Bobs Her Bustle: A Steampunk Adventure
Berenice Bobs Her Bustle: A Steampunk Adventure
Charlotte Henley Babb
PG
Skolo the Bladed Monster
Skolo the Bladed Monster
Lucy Courtenay
PG
Ruby Red
Ruby Red
Kerstin Gier
PG
Houdini and Me
Houdini and Me
Dan Gutman
PG
The Enemy Closes In
The Enemy Closes In
Bill Myers; James Riordan
PG
The Grey King
The Grey King
Susan Cooper
PG
The Dark Portal
The Dark Portal
E.G. Foley
PG
Flames of Fury
Flames of Fury
Don Pendleton
PG
A Winter’s Promise
A Winter’s Promise
Christelle Dabos
PG
Fairest: Levana's Story
Fairest: Levana's Story
Marissa Meyer
PG
The Great War: A Noble Dark One Book, Part 4
The Great War: A Noble Dark One Book, Part 4
Dr. Block
PG
Fang the Bat Fiend
Fang the Bat Fiend
Adam Blade
PG
Cog
Cog
Greg van Eekhout
PG
Cibola
Cibola
James H. Cobb
PG
Revealed (7) (The Missing)
Revealed (7) (The Missing)
Margaret Peterson Haddix
PG
Only You Can Save Mankind (Johnny Maxwell Trilogy, 1)
Only You Can Save Mankind (Johnny Maxwell Trilogy, 1)
Terry Pratchett
PG
Back to the Stone Age
Back to the Stone Age
Edgar Rice Burroughs
PG