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.
Orbitsville Departure
PG-13The Caves of Drach
PG-13Vertigo
PG-13Murder on Mars
PGOmnivore
PGFifth Planet
GWorld of Ptavvs
PG-13Earthbound
PG-13Joan and Peter II: The Story of a Great Schoolmaster
PG-13Death Tolls
RThe Eagle and the Cross
PG-13Behemoth: ß-Max
GTom Swift and His Airline Express, or, From Ocean to Ocean by Daylight
GThe Flying Boat: A Story of Adventure and Misadventure
PG-13A Woman Against the World
GThe Broken God
PG-13Tom Swift and His Motor Cycle
GTom Swift and His War Tank
GTom Swift in Captivity
GPeril on Mars
PG-13Into the Darkness
PG-13Tom Swift and His Electric Runabout
PG-13The History of the Twenty-First Century
PG-13Whisper from the Stars
PG-13First Citizen
PG-13Beowulf's Children
PG-13Dark Sky Legion
RThe Black Cloud
PGThe Shores of Tomorrow
PGThe Bronze Trumpeter
PG