You must beat Leshy, Heket, Kallamar, and Shamura to unlock the endgame.
The base cult area can be expanded to the south, providing significantly more building space. Cult of the Lamb [DLC][01002E7016C47002][v0][US...
You can now breed rare animals like Yakish , Llamaish , and Cowish creatures to harvest wool and meat. You must beat Leshy, Heket, Kallamar, and Shamura