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.

Lilac Peabody and Honeysuckle Hope
Lilac Peabody and Honeysuckle Hope
Annie Dalton
PG
Earth, Air, Fire and Custard
Earth, Air, Fire and Custard
Tom Holt
PG
Asgard's Heart
Asgard's Heart
Brian Stableford
PG
O Pioneer!
O Pioneer!
Frederik Pohl
PG
Voyage to the City of the Dead
Voyage to the City of the Dead
Alan Dean Foster
PG
Maori
Maori
Alan Dean Foster
PG
Undersea City
Undersea City
Frederik Pohl; Jack Williamson
PG
Dueling Dragons
Dueling Dragons
Megan Holmes
PG
The Banquo Legacy
The Banquo Legacy
Justin Richards; Andy Lane
PG
Lost World of Time
Lost World of Time
Lin Carter
PG
There's an Alien in My Backpack
There's an Alien in My Backpack
Bruce Coville
PG
The World's Worst Fairy Godmother
The World's Worst Fairy Godmother
Bruce Coville
PG
Courtship Rite
Courtship Rite
Donald Kingsbury
PG
Hunter's Moon
Hunter's Moon
Louise Cooper
PG
Painted Moon
Painted Moon
Karin Kallmaker
PG
The Hellfire Rebellion
The Hellfire Rebellion
Simon Hawke
PG
The Faithful: A Tragedy in Three Acts
The Faithful: A Tragedy in Three Acts
John Masefield
PG
Undersea Fleet
Undersea Fleet
Frederik Pohl; Jack Williamson
PG
Spiders' War
Spiders' War
S. Fowler Wright
PG
The World Below
The World Below
S. Fowler Wright
PG
Courage: The Time Machine Girls
Courage: The Time Machine Girls
Ernestine Tito Jones
PG
The Usborne Big Book of Fantasy Quests: Combined Volume
The Usborne Big Book of Fantasy Quests: Combined Volume
Felicity Brooks; Andy Dixon
PG
Robots and Empire
Robots and Empire
Isaac Asimov
PG
Manseed
Manseed
Jack Williamson
PG
Journey to Jupiter
Journey to Jupiter
Hugh Walters
PG
Dude, Where's My Spaceship
Dude, Where's My Spaceship
Dan Greenburg
PG
Initial Vector
Initial Vector
Greg Rucka
PG
Lifeburst
Lifeburst
Jack Williamson
PG
The Drowned Sword
The Drowned Sword
Cherith Baldry
PG
The Book of Being
The Book of Being
Ian Watson
PG