Books about Life on other planets -- Fiction (sorted by popularity)
- A Pride of Islands C. C. MacApp 71 downloads
- In the Garden R. A. Lafferty 71 downloads
- The Chemically Pure Warriors Allen Kim Lang 70 downloads
- The fixer George O. Smith 70 downloads
- Valkyrie from the Void Basil Wells 70 downloads
- The Ethic of the Assassin Hayden Howard 69 downloads
- To make a hero Randall Garrett 69 downloads
- The missionary Jesse F. Bone 69 downloads
- Out of Mind William W. Stuart 68 downloads
- The great illusion Manly Banister 68 downloads
- Fog of the Forgotten Basil Wells 68 downloads
- Forever We Die! Stephen Marlowe 67 downloads
- Blueblood Jim Harmon 66 downloads
- Space Blackout Sam Carson 65 downloads
- The overlord's thumb Robert Silverberg 65 downloads
- The Governor of Glave Keith Laumer 65 downloads
- Among the Scented Ones Basil Wells 65 downloads
- The Gods of Mars Edgar Rice Burroughs 65 downloads
- The Flying Tuskers of K'niik-K'naak Jack Sharkey 64 downloads
- Amour, Amour, Dear Planet! Mark Clutter 64 downloads
- The last days of the captain Kate Wilhelm 64 downloads
- The Klygha H. B. Fyfe 63 downloads
- The Rebel of Valkyr Alfred Coppel 63 downloads
- Citadel of the Green Death Robert Emmett McDowell 63 downloads
- Thralls of the Endless Night Leigh Brackett 63 downloads