Underground Desert

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Pc only.png Desktop-Only Content: This information (or parts of it) applies only to the desktop version of Terraria.
BiomeBannerUndergroundDesert.png
See also: Desert.
A world view of an underground desert with a Pyramid.
A Corrupted Underground Desert
A Hallowed Underground Desert

The Underground Desert is a biome found directly under a desert Biome.

The entrance can be found on the surface in the form of a deep funnel shape, opening into the biome at the bottom. The entrance is always within one of the desert biomes created upon world generation. Each world will have only one Underground Desert, despite potentially having multiple Deserts.

The Underground Desert is made primarily of tunnels of Sandstone Blocks. The Underground Desert can also have Underground Cabins made of its biome-specific materials. It is very large when fully explored, rivaling even the dungeon in size. It has either a circular or oval shape.

The Underground Desert is home to several species of antlion, some of which are able to move and even fly. Due to their high life, defense, and damage, it is advised the player avoid this area until equipped with Gold Armor or better. Additionally, the enemies found here have high knockback resistance, which can prove difficult for players who do not posses strong weapons. Early players will often meet a swift death at the hands of one of the Tomb Crawlers, which can kill a new player in three hits.

In Hardmode, the Underground Desert becomes significantly more challenging. Along with harder enemies, the Underground Desert is extremely vulnerable to conversion by the Corruption, Crimson, and Hallow due to the biome being made of Hardened Sand and Sandstone, both of which being susceptible to conversion. Conversion further strengthens the Underground Desert's enemies, and in the Corruption and Crimson Underground Deserts, causes the spawn of Desert Spirits.

Removing the Sandstone background wall will essentially remove the biome, same as with the Spider Caves.

Contents[edit | edit source]

Note: Additional Desert items can be found in the Underground Desert and in Pyramids.

Underground Desert
Characters Unique Drops
Antlion.png Antlion
Antlion Swarmer.png Antlion Swarmer Pc only.png
Antlion Charger.png Antlion Charger Pc only.png
Tomb Crawler.png Tomb Crawler Pc only.png

During Hardmode:

Basilisk.png Basilisk Pc only.png
Sand Poacher.png Sand Poacher Pc only.png
Lamia.pngLamia2.png Lamia
Dune Splicer.png Dune Splicer Pc only.png
Ghoul.png Ghoul Pc only.png
Vile Ghoul.png Vile Ghoul
(Corrupted)
Tainted Ghoul.png Tainted Ghoul
(Crimson)
Dreamer Ghoul.png Dreamer Ghoul
(Hallowed)
Desert Spirit.png Desert Spirit
(Corrupted, Crimson)

From Antlions and Antlion Swarmers:
Antlion Mandible.png Antlion Mandible

From Antlion Chargers:

Antlion Mandible.png Antlion Mandible
Mandible Blade.png Mandible Blade Pc only.png

From all Ghouls in Hardmode:

Ancient Cloth.png Ancient Cloth Pc only.png

From Vile Ghouls in Hardmode:

Cursed Flame.png Cursed Flame
Dark Shard.png Dark Shard

From Tainted Ghouls in Hardmode:

Ichor.png Ichor
Dark Shard.png Dark Shard

From Dreamer Ghouls in Hardmode:

Light Shard.png Light Shard

From Desert Spirits in Hardmode:

Desert Spirit Lamp.png Desert Spirit Lamp Pc only.png
Djinn's Curse.png Djinn's Curse Pc only.png
From Lamias in Hardmode:
Moon Mask.png Moon Mask Pc only.png
Sun Mask.png Sun Mask Pc only.png
Lamia Mask.png Lamia Mask
Lamia Wraps.png Lamia Wraps
Lamia Tail.png Lamia Tail

From Basilisks in Hardmode:

Sturdy Fossil.png Sturdy Fossil Pc only.png
Ancient Horn.png Ancient Horn Pc only.png

From the terrain:

Hardened Sand Block.png Hardened Sand Block Pc only.png
Sandstone Block.png Sandstone Block Pc only.png
Desert Fossil.png Desert Fossil Pc only.png
Sand Block.png Sand Block
Ebonsand Block.png Ebonsand Block
Hardened Ebonsand Block.png Hardened Ebonsand Block
Ebonsandstone Block.png Ebonsandstone Block
Crimsand Block.png Crimsand Block
Hardened Crimsand Block.png Hardened Crimsand Block
Crimsandstone Block.png Crimsandstone Block
Pearlsand Block.png Pearlsand Block
Hardened Pearlsand Block.png Hardened Pearlsand Block
Pearlsandstone Block.png Pearlsandstone Block

Notes[edit | edit source]

  • The enemies are very dangerous early on, so it is advised to have ample Grenades on hand as well as some form of movement-based Accessory to make it less difficult to deal with them. Gold/Platinum armor is recommended due to the high damage dealt by the Antlion Swarmers and Chargers.
  • It seems that the underground desert always spawn as a circle or an oval.
  • While artificial Underground Deserts can be created by placing their respective blocks, no unique enemies will ever spawn due to lack of specialized back walls. It shares this trait with the Dungeon.

Trivia[edit | edit source]

  • In real life, larval antlions create funnel-like pits in the ground and fling sand at prey that pass by. The entrance to this biome may be based on it.

History[edit | edit source]

Biomes
 
Surface Layers Forest • Desert • Ocean • Snow • Jungle • Mushroom • The Corruption • The Crimson • The Hallow • Space
Underground Layers Underground • Cavern • Underground Snow • Pc only.png Underground Desert • Underground Jungle • Underground Mushroom • Underground Corruption • Underground Crimson • Underground Hallow • The Underworld
Special Biomes Meteorite • Pc only.png Granite Cave • Pc only.png Marble Cave • Spider Nest • Bee Hive • Dungeon • Lihzahrd Temple
Other Living Tree • Pc only.png Enchanted Sword Shrine • Floating Island • Underground Cabin • Chasm • Pyramid • Jungle Shrine • Pc only.png Living Mahogany Tree • Mobile only.png Jungle Sanctum • Ruined House