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.

Man Plus
Man Plus
Frederik Pohl
PG
Morningstar
Morningstar
Peter Atkins
PG
Artemis Fowl and the Last Guardian
Artemis Fowl and the Last Guardian
Eoin Colfer
PG
Boogeymen
Boogeymen
Mel Gilden
PG
The Room with No Doors
The Room with No Doors
Kate Orman
PG
The Crystal Bucephalus
The Crystal Bucephalus
Craig Hinton
PG
Harvest of Time
Harvest of Time
Alastair Reynolds
PG
The Long War
The Long War
Terry Pratchett; Stephen Baxter
PG
Monsieur de Phocas
Monsieur de Phocas
Jean Lorrain
PG
The Iron Giant
The Iron Giant
Ted Hughes
PG
Shadowmaster
Shadowmaster
Ian Livingstone; Marc Gascoigne
PG
The Beast
The Beast
R. L. Stine
PG
The Sucking Pit
The Sucking Pit
Guy N. Smith
PG
Life on the Moon
Life on the Moon
Matthew Swanson
PG
Phobia
Phobia
Guy N. Smith
PG
Job: A Comedy of Justice
Job: A Comedy of Justice
Robert A. Heinlein
PG
Matched
Matched
Ally Condie
PG
World of Mazes
World of Mazes
Robert E. Vardeman
PG
Wolfbane
Wolfbane
Frederik Pohl; C. M. Kornbluth
PG
Iron Tongue
Iron Tongue
Robert E. Vardeman
PG
Good Morning, Irene
Good Morning, Irene
Carole Nelson Douglas
PG
The World in Shadow
The World in Shadow
Vox Day
PG
Destiny's Carnival
Destiny's Carnival
Mark Brownwood; Warren Murphy
PG
The Listeners
The Listeners
Christopher Pike
PG
The X Factor
The X Factor
Andre Norton
PG
Knave of Dreams
Knave of Dreams
Andre Norton
PG
No Night Without Stars
No Night Without Stars
Andre Norton
PG
Empire of the Eagle
Empire of the Eagle
Andre Norton; Susan Shwartz
PG
Dread Companion
Dread Companion
Andre Norton
PG
Fields of Iron: A steampunk adventure novel
Fields of Iron: A steampunk adventure novel
Shelley Adina
PG