From publisher blurb:
What Does It Mean to Be Human?
This book explores transhumanist culture, technologies, and methods for Starfinder. It takes a look at “morphs” (genetic enhancements) of various races, unwanted mutations, and intentional gene splicing.
Included:
Morphs: 17 morphs for the core player races of Starfinder. Morphs are more powerful racial variants brought about by self-directed evolution! This system includes rules for implementation and balance.
VAMPIRES IN STARFINDER! Finally! The wait is over! Make yourself (or the enemies of the party) into blood-sucking nightmares... in space!
The Dhampir player race!
Extensive Mutation System: Over 190 mutations plus spells and items that interact with the mutation system! Add some flavor to your mutants!
Trigger Base Class: In the future people will be able to get procedures that allow them to trigger dormant genes in their body, bio-engineered and spliced into their own DNA. These changes lay dormant until they are needed... and then things get ugly. On command you can hulk out with a wide variety of bizarre abilities and effects!
New Spells!
Mutagens!