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.

Firefly
Firefly
Brian Stableford
PG
Atomic - The Radioactive Bomb
Atomic - The Radioactive Bomb
Max Silver
PG
TekWar
TekWar
William Shatner; Ron Goulart
PG
Tek Secret
Tek Secret
William Shatner; Ron Goulart
PG
Across the Far Mountain
Across the Far Mountain
Niel Hancock
PG
The Last Hero
The Last Hero
Terry Pratchett; Paul Kidby
PG
Minox - The Planet Driller
Minox - The Planet Driller
Max Silver
PG
Death Is a Lonely Business
Death Is a Lonely Business
Ray Bradbury
PG
Dark Destiny
Dark Destiny
Greg Farshtey
PG
Home Free
Home Free
Kathryn Lasky
PG
Battle Bust-Up
Battle Bust-Up
John Heffernan
PG
Aztec Attack
Aztec Attack
John Heffernan
PG
Sky Wars
Sky Wars
John Heffernan
PG
Foundation and Earth
Foundation and Earth
Larry McKeever
PG
The Hitch Hiker's Guide to the Galaxy -- A Trilogy in Five Parts
The Hitch Hiker's Guide to the Galaxy -- A Trilogy in Five Parts
Douglas Adams
PG
Stolen Property
Stolen Property
E. M. Foner
PG
No Stress Space Express: A Cozy, Low-Stakes, Slice-of-Life Scifi Adventure
No Stress Space Express: A Cozy, Low-Stakes, Slice-of-Life Scifi Adventure
Jack Bodett
PG
The Artifact
The Artifact
David Collins
PG
The Moon Hotel: A Cozy Sci-fi Fantasy
The Moon Hotel: A Cozy Sci-fi Fantasy
Ella Blake
PG