The Plugstack is a harvestable that can be found in the Nightmare. It can be found from various sources and locations throughout the Frontier including but not limited to:
- Being harvested from Fish Hall, The Back Area, The Ballroom, The Grand Hall, The Hidden Library, The Mansion, The Old Mansion, The Supermarket, and The Theatre.
In appearance, the Plugstack is a simple device possessing two light-blue eyes and a square-shaped nose, as well as two stiff legs and other ornamentations that can be seen at the top and bottom of its body. If the player has no purpose for the Plugstack, it can be sold for 8,800 gold.