From publisher blurb:
Xenopedia is a bestiary and adversary collection for science fiction adventures and campaigns powered by the Entropic Gaming System. Although Xenopedia is designed to be used with Entropic Heroes: Science Fiction, it’s completely universal and is usable with any science fiction setting or campaign, published or homebrewed. Each xeno entry provides a background of the species, the basic stat block, general motivations, and even a scattering of NPCs, minions, or alternate stat blocks. With all entries powered by the OGL, Third Party Publishers can use them too!
Xenopedia includes:
35 different xenos species including…
Intelligent species.
Non-organic species.
Animal-like species.
Monstrous species.
… and more!
A keyword rating system to better understand the species.
Villains.
Illustrations of each species.