Books about Life on other planets -- Fiction (sorted by popularity)
- To make a hero Randall Garrett 34 downloads
- The fixer George O. Smith 34 downloads
- The Fool David Mason 33 downloads
- Survival factor Charles V. De Vet 33 downloads
- World Without Glamor Stephen Marlowe 33 downloads
- The Rebel of Valkyr Alfred Coppel 33 downloads
- The Un-Reconstructed Woman Hayden Howard 33 downloads
- Problem Planet R. R. Winterbotham 33 downloads
- Children of the Chronotron S. J. Byrne 33 downloads
- When Whirlybirds Call Frank Banta 32 downloads
- Captain of the Kali Gary Wright 32 downloads
- The Time of Cold Mary Carlson 32 downloads
- The Recluse Mike Curry 31 downloads
- The Lunarian Professor and His Remarkable Revelations Concerning the Earth, the Moon and Mars James B. Alexander 30 downloads
- A Toothache on Zenob Boyd Ellanby 29 downloads
- Blueblood Jim Harmon 29 downloads
- Rondah; or, thirty-three years in a star Florence Carpenter Dieudonné 28 downloads
- The Toy Kris Neville 28 downloads
- Hunt the Hog of Joe Robert E. Gilbert 28 downloads
- Planet of Doom Stephen Marlowe 28 downloads
- Money is the Root of All Good Patrick Wilkins 27 downloads
- The Devolutionist and the Emancipatrix Homer Eon Flint 26 downloads
- "Utopia? Never!" Thomas M. Disch 25 downloads
- The Dancers Margaret St. Clair 24 downloads
- Steel Giants of Chaos James R. Adams 23 downloads