Seed of Evil is an expansion to the award-winning tactical adventure game Mutant Year Zero: Road to Eden picking up where the original game ended and offering hours of more game play, new locations to visit, and a new leading character! Continue the main story and explore many hours of all new content. Expand your team with the veteran stalker Big Khan the moose and get ready to defeat a new threat to Dux, Bormin, Selma and all the others. In Seed of Evil you must solve the mystery of the powerful and ominous roots which have taken over the Ark. Discover huge new maps, battle new enemies, improve your mutations, get your hands on all new gear, defeat foes trying to take back lost ground and face off against a vicious new adversary.

A new menace is looming in the expansion. Powerful and ominous roots have emerged and seem to be taking control over the minds of friends and foes alike. Fortunately, a new hero has arrived, and players can now add Big Khan the moose to their squad of mutants. He is not only skilled at landing critical hits but comes with the unique mutations Ground Pound and Flame Puke, giving the option to apply a more diverse playstyle in order to succeed.