It costs 10,00 Coins to purchase once unlocked and then requires resources to actually construct.
- Level 1: 20 Piles of Seeds, 30 Mushrooms, 4 Red Dye, 4 Royal Blocks
- Level 2: 20 Iron Ore, 20 Fertilizer, 4 Royal Blocks, 3 Woven Cloth
- Level 3: 3 Boar Pelts, 20 Living Wood, 4 Royal Beams, 4 Woven Cloths
Collection Time: 22 hours
The Troll Castle can be stored in My Inventory and is found in the Buildings tab, it cannot be sold, and is 3x3 squares.