House is a player buillt structure that is required for NPC spawning or player protection. The house's quality can range depending on the player's equipment - from dirt blocks to Metal blocks.
A house needs to have many aspects for it to be considered a house-
- A door
- A light source (Eg. Torch)
- A table
- A chair
- A house can occur naturally on a floating island but it does not meet the real housing requirements (i.e. Table and Chair)
- A dungeon can be converted into houses as well, but it can be very dangerous for the player.