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.

Passion
Passion
Tony Shillitoe
PG
The Unquiet Spirit
The Unquiet Spirit
Marguerite Steen
PG
The White Abacus
The White Abacus
Damien Broderick
PG
Passage
Passage
Lois McMaster Bujold
PG
Principles of Angels
Principles of Angels
Jaine Fenn
PG
Pirate Sun
Pirate Sun
Karl Schroeder
PG
Robot Hunt
Robot Hunt
Roger Lee Vernon
PG
Survival Planet
Survival Planet
Arthur Tofte
PG
The Man Who Lived in Inner Space
The Man Who Lived in Inner Space
Arnold Federbush
PG
After 12,000 Years
After 12,000 Years
Stanton A. Coblentz
PG
Cyclone
Cyclone
Eric Nilsen
PG
Defenders of Ulthuan
Defenders of Ulthuan
Graham McNeill
PG
Fulgrim
Fulgrim
Graham McNeill
PG
The Parasite
The Parasite
Neal Asher
PG
The Red Clay Desert
The Red Clay Desert
Joe Allen
PG
Planet Patrol
Planet Patrol
Sonya Dorman
PG
The Harvest
The Harvest
Robert Charles Wilson
PG
The Empty Kingdom
The Empty Kingdom
Elizabeth E. Wein
PG
Alien Missile Threat
Alien Missile Threat
Paul S. Newman
PG
Daemon
Daemon
Leinad Zeraus
PG
Separation
Separation
Andy Boot
PG
Prodigal Chalice
Prodigal Chalice
Mel Odom
PG
The White Jade Fox
The White Jade Fox
Andre Norton
PG
Phone Fear
Phone Fear
Christopher Pike
PG
Gemini Rising
Gemini Rising
J. S. Filbrun
PG
Angelslayer: The Winnowing War
Angelslayer: The Winnowing War
K. Michael Wright
PG
The Night Journal
The Night Journal
Elizabeth Crook
PG
Jekyll and Heidi
Jekyll and Heidi
R. L. Stine
PG
Night of the Fifth Moon
Night of the Fifth Moon
Anna Ciddor
PG
Claws That Catch
Claws That Catch
John Ringo; Travis S. Taylor
PG