House



A Home is a structure built by the player from Blocks, Walls, Furniture, and other items, that can serve as a spawn point for NPCs. An NPC requires an unoccupied Home in order to appear (with the exception of the Guide), and will not appear otherwise. A structure must meet specific Requirements in order for the game to recognize it as a proper Home and spawn NPCs.

Requirements
A structure must meet the following requirements in order to function as a Home:
 * Is completely enclosed in Blocks (aside from the entrance) to serve as side walls, a floor, and a ceiling. You may also use Wooden Platforms as part of the floor, walls or ceiling, so long as there is one non-platform block for the NPC to stand on at night. That block must be within two spaces of the Comfort item or Flat Surface item.
 * Has background Walls. Walls not placed by a player (such as naturally-occurring dirt) do not count, with the exception of those behind Floating Island structures.
 * Has at least 1 placed Comfort item.
 * Has at least 1 placed Flat Surface item.
 * Has at least 1 entrance, which can be a Wooden Door in a wall or a Wood Platform in the ceiling or floor.
 * Has at least 1 light source. A Furnace or Lamp Post will not work for this purpose.
 * Is at least 5 blocks tall and 7 blocks wide (or 4 blocks tall and 6 blocks wide, not including walls, floor or ceiling)*.
 * Note: NPC seem to need 3 free horizontal spaces for a place to stand still at night.

If in doubt or when NPC's refuse to live there, make it wider. Don't focus too much on minimum requirements but start with a walled up 10x5 inside space (structural- and back-wall and door), A chair with either table or workbench and you should get NPC's quickly.

Comfort items
At least 1 Comfort item must be placed in a Home. Currently the following items may function as Comfort items:
 * Chair
 * Throne
 * Bench
 * Bed
 * Toilet

Flat Surface items
At least 1 Flat Surface item must be placed in a Home. Currently the following items may function as Flat Surface items:
 * Table
 * Dresser
 * Workbench
 * Bathtub
 * Bookcase
 * Piano