Open Library
Sci-Fi
The future, written before it arrives.
21,077 books

The Shadow Matrix
Marion Zimmer Bradley

Choose Your Own Adventure - The Third Planet from Altair
Edward Packard

Star Trek - Chain of Attack
Gene DeWeese

Star Wars - Children of the Jedi
Barbara Hambly

Juxtaposition (Apprentice Adept
Piers Anthony

Ashes of Victory
David Weber

The Ganymede Takeover
Philip K. Dick

Men, Martians and Machines
Eric Frank Russell

Star colony
Keith Laumer

Under the red sun
Blake A. Hoena

Molly Moon stops the world
Georgia Byng

Viscous Circle
Piers Anthony

The furious flycycle
Jan Wahl

Orbit 5
Damon Knight

John Dies at the End
David Wong

Isaac Asimov's Inferno
Roger MacBride Allen

Otherness
David Brin

Satan’s World
Poul Anderson

Vault of the ages
Poul Anderson

Transcendent
Stephen Baxter