Hard SF
1307 booksThe best hard sf books in our directory, ranked by reader rating. Every title carries a content rating, age recommendation, and trigger warnings, so you know exactly what you're picking up before you start reading.
Cat Cross Their Graves
PG-13
The Sands of Time
PG-13
The Sea Lady
PG-13
Avenging Fury
PG-13
Saturn's Children
PG-13
When Night Falls
PG-13
Arthur C. Clarke's Venus Prime 5
PG-13
Inherit the Witch
PG-13
The Last War: A World Set Free
R
Down the Bright Way
PG-13
Angel Kagoule
PG-13
Mind Slayer
PG-13
Blood Brothers
PG-13
Acts of Conscience
PG
Tom Swift and His Airship
PG
Tom Swift in the City of Gold
PG
Dimensions
PG-13
The Undying Fire
R
Tom Swift in the Caves of Ice
PG
Tom Swift and His Air Glider
PG
Tom Swift Among the Fire Fighters
G
Tom Swift and His Electric Locomotive
G
No Gods of Conscience
PG
The Food of the Gods and How It Came to Earth
PG-13
Martian Knightlife
PG-13
Kidnappers of Space
PG-13
The Lighthouse at the End of the World
PG-13
Journey to the Centre
PG-13
The Golden Bottle; or, The Story of Ephraim Benezet of Kansas
PG-13
Scorpio: Shadow
PG-13