World Generation
This mod features world generation, meaning that to get it, you need to generate a new world. Worlds created prior to the mod being enabled (or updated) will not contain the content listed here.
A room which appears near the top end of the dungeon, containing a locked Antique Chest and an Antique Cage. Opening the cage will initiate the encounter with the Soul Harvester. If this room doesn't exist, or the cage has been opened already and Soul Harvester has not been defeated yet, it will simply spawn as soon as you cross to the hostile zone of the dungeon.