From publisher blurb:
Genetic Instability introduces 3 new player race options for Dungeons & Dragons, Fifth Edition! With this supplemental pack from Ebethan Game Designs, you get:
The Cossum: Human tribesmen from a harsh and barren world.
The Molad, and The Ruhain: subraces of nonhumans, affected by otherworldly influences.
These additions are written in broad strokes for easy use in any campaign setting!