PG rated sci-fi books

3408 books

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

Martin Magnus on Mars
Martin Magnus on Mars
William F. Temple
PG
Where Time Ends
Where Time Ends
Thomas Baird
PG
Colonial Survey
Colonial Survey
Murray Leinster
PG
Operation: Face the Fear
Operation: Face the Fear
Tony Ruggiero
PG
White Tribe
White Tribe
Gene O'Neill
PG
When Harlie Was One
When Harlie Was One
David Gerrold
PG
The End of Eternity
The End of Eternity
Isaac Asimov
PG
Mother Night
Mother Night
Kurt Vonnegut, Jr.
PG
The Last Ever After
The Last Ever After
Soman Chainani
PG
Way-Farer
Way-Farer
Dennis Schmidt
PG
The Mark of the Vampire Queen
The Mark of the Vampire Queen
Joey W. Hill
PG
Mort
Mort
Terry Pratchett
PG
The Legend of Holly Claus
The Legend of Holly Claus
Brittney Ryan
PG
A City of Bells
A City of Bells
Elizabeth Goudge
PG
Against the Tide
Against the Tide
Tui T. Sutherland
PG
The Adventure of the Ectoplasmic Man
The Adventure of the Ectoplasmic Man
Daniel Stashower
PG
Outcast
Outcast
Erin Hunter
PG
The BFG
The BFG
Roald Dahl
PG
Robots and Empire
Robots and Empire
Isaac Asimov
PG
Shada
Shada
Gareth Roberts; Douglas Adams
PG
The Illustrated Hitchhiker's Guide to the Galaxy
The Illustrated Hitchhiker's Guide to the Galaxy
Douglas Adams
PG
Keeper of Dreams
Keeper of Dreams
Lynn Armistead McKee
PG
Sword in Sheath
Sword in Sheath
Andre Norton
PG
Triple Zero
Triple Zero
Karen Traviss
PG
The Hitchhiker's Guide to the Galaxy
The Hitchhiker's Guide to the Galaxy
Douglas Adams
PG
The Ghosts
The Ghosts
Antonia Barber
PG
Splashman
Splashman
Lydia Weaver
PG
Ami, Child of the Stars
Ami, Child of the Stars
Enrique Barrios
PG
The Hitch Hiker's Guide to the Galaxy
The Hitch Hiker's Guide to the Galaxy
Douglas Adams
PG
The Revealing
The Revealing
L. A. Marzulli
PG