Ruined House

Example of a Ruined House.

Ruined Houses are structures in The Underworld, generated at world creation. They appear as towers built from Obsidian Bricks (with Obsidian Brick Walls) or Hellstone Bricks (with Hellstone Brick Walls) with several rooms each, causing them to somewhat resemble apartment buildings. They are often partially (sometimes completely) flooded with lava. Ruined Houses occur frequently, but only in the middle 50% of the Underworld; there are no Ruined Houses at the extreme left and right of the Underworld (the final 25% of the Underworld on each side).

Ruined Houses commonly contain several Pots, Hellforges, Demon Torches, Obsidian Furniture items, Paintings, and decorative Banners. They also often contain locked Shadow Chests (nearly all Shadow Chests occur within or on top of Ruined Houses). Hellstone is commonly found among the Ash Blocks beside Ruined Houses.

Name	Size (W×H)	Sell	Tooltip	Description
Dark Soul Reaper Internal Item ID: 1476	2×3	1000*10	'J. T. Myhre'	Reaper portrait.
Darkness Internal Item ID: 1475	2×3	1000*10	-	The back of a Yu-Gi-Oh! card.
Demon's Eye Internal Item ID: 1479	3×2	1000*10	'J. T. Myhre'	A demon's eye.
Flowing Magma Internal Item ID: 1542	3×2	1000*10	'A. Craig'	Underworld landscape.
Hand Earth Internal Item ID: 1497	3×3	1000*10	'J. T. Myhre'	A hand reaching out from the ground.
Imp Face Internal Item ID: 1538	3×3	1000*10	'J. T. Myhre'	A Fire Imp's face.
Lake of Fire Internal Item ID: 1501	6×4	1000*10	'W. Garner'	Lava pool under Forest land.
Living Gore Internal Item ID: 1541	3×2	1000*10	'A. Craig'	A piece of the Wall of Flesh.
Ominous Presence Internal Item ID: 1539	3×3	1000*10	'A. Craig'	A Reaper flying over an Underworld landscape.
Shining Moon Internal Item ID: 1540	3×3	1000*10	'A. Craig'	Crescent moon and stars.
Skelehead Internal Item ID: 1499	3×3	1000*10	'J. T. Myhre'	Bone Serpent head.
Trapped Ghost Internal Item ID: 1478	2×3	1000*10	'J. T. Myhre'	An unhappy ghost trapped in limbo.

Notes

The furniture found in ruined houses, with the exception of Demon Torches, is not dislodged by contact with lava, unlike most other furniture. These items can still be destroyed by throwing them into lava in item form.
Due to the fact that Hellstone Bricks cause the Burning debuff, Ruined Houses made of Hellstone Bricks are effectively inaccessible until an Obsidian Skull or one of its upgrades is obtained.

Trivia

A Ruined House prior to update 1.0.6, which revamped Ruined Houses.

Despite the name, Ruined Houses do not look particularly ruined - the name is a remnant from older versions of Terraria in which Ruined Houses had random holes in the walls and background walls. Current Ruined Houses will still occasionally feature lacking horizontal walls, but these holes are more strategically placed to allow entry into rooms as well as harder to notice with the background walls lining up. There is also the occasional half-block creating lavafalls.