Books about Extraterrestrial beings -- Fiction (sorted by popularity)
- Savage Galahad Bryce Walton 101 downloads
- Second Landing F. L. Wallace 100 downloads
- A Bad Day for Vermin Keith Laumer 100 downloads
- A Transmutation of Muddles H. B. Fyfe 95 downloads
- Growing up on Big Muddy Charles V. De Vet 95 downloads
- D-99: a science-fiction novel H. B. Fyfe 95 downloads
- Not Fit for Children Evelyn E. Smith 93 downloads
- End as a Hero Keith Laumer 93 downloads
- Rough Beast Roger D. Aycock 93 downloads
- Planet of the Gods Robert Moore Williams 93 downloads
- Extracts from the Galactick Almanack: Music Around the Universe Laurence M. Janifer 92 downloads
- The Last Monster Gardner F. Fox 91 downloads
- A trace of memory Keith Laumer 91 downloads
- Success Story Earl Goodale 90 downloads
- Daughter Philip José Farmer 88 downloads
- The Test Colony Winston K. Marks 88 downloads
- Indirection Everett B. Cole 87 downloads
- Amateur in Chancery George O. Smith 86 downloads
- Out Around Rigel Robert H. Wilson 86 downloads
- On the Fourth Planet Jesse F. Bone 86 downloads
- The Monster That Threatened the Universe R. R. Winterbotham 86 downloads
- Founding Father Jesse F. Bone 86 downloads
- Keep Your Shape Robert Sheckley 85 downloads
- The Invader Alfred Coppel 84 downloads
- Exploiter's End James Causey 82 downloads