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.
Doctor Zil's Experiment
PG-13Ocean on Top
PGEndgame Enigma
PG-13Escape from New York
GThe Starcrossed
PG-13Rogue Powers
RStar Surgeon
GF.P.1 Does Not Reply
PG-13Nightmare
PG-13The Palace of Eternity
PG-13Medusa's Children
PG-13The Ceres Solution
RMission to Mercury
PG-13Infinity's Shore
RYoung Frank Reade and His Electric Air Ship; or, A 10,000 Mile Search for a Missing Man
PG-13Downtime
PGTalons of Scorpio
PG-13Terror by Satellite
PGThe Dark Triangle
PGShapeshifter
PG-13Around the Moon
PGWe, the Women
PG-13God's Secret
PG-13Travel Scholarships
PG-13Tom Swift and His Sky Racer
GTom Swift and His Great Oil Gusher, or, The Treasure of Goby Farm
PGTom Swift in the Land of Wonders
PGTom Swift and His Great Searchlight
GTom Swift and His House on Wheels, or, A Trip Around the Mountain of Mystery
PGThe 11th Plague
PG-13