Open Library
Sci-Fi
The future, written before it arrives.
21,041 books

The swords of Lankhmar
Fritz Leiber

The Capture (Guardians of Ga'Hoole, Book 1)
Kathryn Lasky

Danger in Deep Space
Carey Rockwell

Robots and Empire
Isaac Asimov

Breakfast of Champions
Kurt Vonnegut

Space Cadet
Robert A. Heinlein

Virtual light
William Gibson

Gold
Isaac Asimov

The Boggart (The Boggart #1)
Susan Cooper

Rocannon's World
Ursula K. Le Guin

Imajica (The Fifth Dominion, Book 1)
Clive Barker

Rubinrot
Kerstin Gier

To Ride Pegasus (The Talent #1)
Anne McCaffrey

Many Waters (Time Quintet #4)
Madeleine L'Engle

Wizard At Large
Terry Brooks

The Beginning Place
Ursula K. Le Guin

Annihilation
Jeff VanderMeer

The Invasion
Katherine Applegate

Fantastic Voyage
Isaac Asimov

The Space Merchants
Frederik Pohl