From the back of the book:
"No Humans Allowed introduces the XXVc role-player to the exciting and the frightening, the common and the rare. Gennies, no matter what purpose they serve, await the XXVc player.
No Humans Allowed includes:
- Over 50 genetically altered human and nonhuman genotypes to populate your XXVc game universe.
- Rules for creating your own gennie races.
- Locations of the largest and most notorious gennie manufacturing plants in the solar system.
- Rules for using your human gennies as Player Characters.
- All the gennies and rules within this book are compatible with the AD&D 2nd Edition Game!"