The Underworld

From Terraria Wiki
Jump to: navigation, search

The Underworld (also known as Hell) is the deepest layer of the world, marked by dark rock with orange lines through it near the top followed by a spacious cavern. It is a large, open cavity that stretches across the world's bottom, with a ceiling of Ash Blocks and a lower terrain of large Lava pools, Ash Blocks, and Hellstone. It also contains several Ruined Houses, which are natural structures containing unique furniture and other loot. The Underworld is considered the most challenging biome prior to Hardmode.

The Underworld contains many hazards, most prominently its broad expanses of Lava. It also contains several unique and difficult enemies. Much of the solid surface consists of Hellstone, a valuable crafting material that can only be obtained in the Underworld; however it inflicts damage to players on contact without the proper equipment, while mining it also causes more Lava to form. If any Water enters the Underworld the whole pool of connected water blocks evaporate. Consider this if you have a large pool of water close to the Underworld which you don't want to lose.

The Wall of Flesh boss can be summoned here. Defeating it will cause the world to convert to Hardmode. It is possible to summon the Wall of Flesh accidentally, by inadvertently killing a Voodoo Demon positioned over lava. This is likely to surprise and kill most unprepared players.

The middle two quarters of the Underworld contain several Ruined Houses, which are Obsidian and the less common Hellstone Brick towers that contain Shadow Chests, Hellforges, Pots, Obsidian Furniture, and other lootable items. Shadow Chests require the Shadow Key to open (acquired in the Dungeon's locked Gold Chests, the Golden Lock Box from Dungeon Crates, or dropped from Mobile only.pngArch Wyverns), and can contain unique Underworld-only loot.

Contents[edit | edit source]

The Underworld
Characters Unique Treasures Unique Drops
Hellbat.png Hellbat
Lava Slime.png Lava Slime
Fire Imp.png Fire Imp
Arch Demon.png
Demon.png Demon
Voodoo Demon.png Voodoo Demon
Bone Serpent.png
Wall of Flesh.png
Wall of Flesh 

During Hardmode:

Mimic.png Mimic
Tortured Soul.png Tortured Soul Desktop Version

After defeating a
Mechanical Boss:

Lava Bat.png Lava Bat
Red Devil.png Red Devil
Hellfire Arrow.png Hellfire Arrow

From Shadow Chests:

Dark Lance.png Dark Lance
Sunfury.png Sunfury
Flamelash.png Flamelash
Flower of Fire.png Flower of Fire
Hellwing Bow.png
Drax  Mobile only.png
(very rare)

From Fire Imps:

Plumber's Hat.png
Plumber's Hat 
Obsidian Rose.png
Obsidian Rose 

From Demons:

Demon Scythe.png
Demon Scythe 

From Lava Bats,
Red Devils, and Hellbat:

Magma Stone.png
Magma Stone 

From Red Devils:

Fire Feather.png
Fire Feather 
Unholy Trident.png

From Voodoo Demons:

Guide Voodoo Doll.png
Guide Voodoo Doll 
(100% chance)

From Arch DemonsConsole VersionMobile only.png3DS logo.svg:

Crystal Shard.png
Crystal Shard 
(2-5) Mobile only.png
Crystal Storm.png
Crystal Storm 
(0.2% chance) Mobile only.png

From any enemy after
defeating Skeletron:


From any enemy
in Hardmode:

Living Fire Block.png
Living Fire Block Desktop VersionConsole VersionMobile only.png
(2% chance)

From vegetation:

Fireblossom.png Fireblossom
Fireblossom Seeds.png

From terrain:

Ash Block.png Ash Block
Demon Torch.png Demon Torch
Hellstone.png Hellstone
Hellstone Brick.png Hellstone Brick
Obsidian Brick.png Obsidian Brick
Obsidian Brick Wall.png
Hellforge.png Hellforge
Shadow Chest.png Shadow Chest
Obsidian Door.png Obsidian Door
Obsidian Bed.png Obsidian Bed
Obsidian Table.png Obsidian Table
Obsidian Chair.png Obsidian Chair
Obsidian Work Bench.png

Notes[edit | edit source]

  • The Underworld starts at about 3000 feet deep in a large world, at about 2000 feet in a medium world, and at about 1300 feet deep in a small world.
  • Just above the Underworld (if Backgrounds are on) will be the old background the Underworld used to have. It can be recognized as a warning that the player has gotten close to the Underworld.
  • After defeating the Wall of Flesh and unlocking Hardmode, the game will draw in diagonal sections of Hallow and Corruption/Crimson (depending on which one your world generated with).
  • In the 3DS logo.svg version, the bottom right corner of the underworld has a Super Mario World fire flower icon.
Underworld Fire Flower.jpeg
  • No background or foreground shaders can be applied by anything in the Underworld aside from normal lighting devices. This is apparent when fighting the Moon Lord, as blocks are not darkened, and the background is still visible.
  • When the player gets close to the Underworld, the screen will start to waver slightly, in a manner similar to the shimmering caused by heat.
  • On Desktop Version Desktop version and 3DS logo.svg version, the music track The Underworld plays (Desktop Version "Hell" Music Box). On Console Version Console version and Mobile only.pngMobile version, the music track Eerie plays (Console Version "Eerie" Music Box).

Tips[edit | edit source]

  • A player can dig a tunnel two blocks wide down to the bottom of the world. With a Lucky Horseshoe, Wings, or by jumping with a Cloud in a Bottle at the end, they can fall down this tunnel, commonly called a "hellevator". Within this two-block-wide space, monster spawn rates are heavily reduced, especially Fire Imps. This allows the player to mine as much Hellstone as they wish, but use caution when expanding this tunnel; a larger cave has higher chances of Fire Imp spawns.
  • A possible way to create a "hellavator" is to simply make a small hole and drop a few stacks of dynamite into it.
  • A very effective way to counter Fire Imps and Red Devils is with a minion. An Imp Staff can be crafted out of Hellstone Bars.
  • If the player explores the roof of the Underworld, they may find parts of an Underground Jungle.
  • Despite the more sequential boss difficulty, the Underworld is actually far easier to survive in than the Dungeon or Underground Jungle. A player should by all means explore the underworld as soon as they have a pickaxe that can mine hellstone, or even before if they would like to make use of Hellfire Arrows or the Demon Scythe spell, so long as they have sufficient means of avoiding the lava.
  • After the Wall of Flesh is defeated and the world enters hardmode, the Underworld may become, ironically, the safest place because of the spreading Corruption, Jungle, Hallowed, and Crimson biomes.
  • Once the player has defeated a Mechanical boss, an Imp Staff (or similar) will allow the player to effectively deal with the Red Devils and Lava Bats. (Note: this can happen before hardmode, if a Mechanical boss is summoned and defeated before the Wall of Flesh.)
  • One way to deal with Red Devils and Lava Bats is to build temporary tunnels and bunkers as the player mines Hellstone. Using Stone Blocks is not recommenced, because the smashing of Demon Altars may convert one or more stone blocks into Ebonstone/Crimstone or Pearlstone and although that will not spread underground Hallow or Corruption/Crimson, it may be difficult to find when purifying the world.
  • You can bring 50 pieces of Meteorite to the Underworld and thus create an artificial Meteor biome. However, this is no longer useful during hardmode as Meteor Heads stop dropping loot once the Wall of Flesh has been defeated.

Achievements[edit | edit source]

Achievement It's Getting Hot in Here.png It's Getting Hot in Here"Spelunk deep enough to reach the molten underworld. "
Reach The Underworld for the first time. Desktop Version
Achievement Rock Bottom (PC).png Rock Bottom"The only way is up!"
Reach the very bottom of The Underworld. Desktop Version
Achievement Rock Bottom.png Rock Bottom"Reach the bottom of the World"
Reach the very bottom of The Underworld. Console VersionMobile only.png
Trophy To Hell and Back.png To Hell and Back"You have gone to The Underworld and back without dying!"
Go to The Underworld and back without dying. Console Version
Trophy Hellevator.png Hellevator"Go from the surface to The Underworld in under a minute."
Go from the surface to The Underworld in less than 1 minute. Console Version

Gallery[edit | edit source]

History[edit | edit source]

  • 1.3.3: Added heat distortion effect.
  • 1.2.3: Fixed the bug where removing walls in the Underworld would not update the map.
  • 1.0.6:
    • Ruined houses now spawn differently. They often spawn as all Obsidian Brick, and they can now get really tall.
    • Clumps of Ash are now filled with more lava pockets, making mining Hellstone more of a challenge.
    • Gold Chests are now replaced with Shadow Chests which now hold most underworld loot.
Biomes and Structures
Surface Layers Forest • Desert • Ocean • Snow • Jungle • Mushroom • Evil Biome (The Corruption • The Crimson) • The Hallow • Space
Underground Layers Underground • Cavern • Underground Snow • Underground DesertDesktop Version • Underground Jungle • Underground Mushroom • Underground Corruption • Underground Crimson • Underground Hallow • The Underworld
Special Biomes Meteorite • Granite CaveDesktop Version • Marble CaveDesktop Version • Spider Nest • Bee Hive • Dungeon • Lihzahrd Temple
Structures and Other Biomes Living Tree • Enchanted Sword ShrineDesktop Version • Floating Island • Underground Cabin • Chasm • Pyramid • Jungle Shrine • Living Mahogany TreeDesktop Version • Jungle SanctumMobile only.png • Ruined House • Heart ShrineMobile only.png