The Castle is the least expensive three-floor house in Adopt Me! and can be bought for 1,499. Although it has 9 rooms, they are all very small.
The outside of the Castle features a large tree with small windows around two giant towers. The tops of the towers and the banners of the Castle are color-customizable.
- There is a bigger counterpart of this house, the Ruler's Castle.
- The inside of the Castle is composed of 3 floors. Each has a main room, a smaller bedroom, and a bathroom.
- The inside of the house looks like the inside of the Fairy House.
- There is a secret room in the Castle. In the corner of the wall on one of the floors, players can glitch through the corner and there will be a secret room.