Underground Desert

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Desktop versionConsole versionMobile version Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
A world view of an underground desert from 1.4 with a Pyramid and an Oasis.

The Underground Desert is a biome located directly underneath a Desert biome. On the Desktop version Desktop version and Mobile version Mobile version the Desert above may generate different features which informs that the Underground Desert is underneath, whereas on the Console version Console version the Desert will always generate a large 'antlion funnel' which leads down into the Underground Desert. See Surface Desert below for details. The Desert/Underground Desert pair will always generate on the same side of the world the Jungle is on.

The structure of the Underground Desert resembles that of a real-world ant hive, featuring numerous small caves mainly composed of Sandstone Blocks and Hardened Sand Blocks, which are connected in varying degree. It is very large when fully explored, rivaling even the Dungeon in size, and is always either circular or oval in shape. The Underground Desert is inhabited by many types of Antlion enemies and is also riddled with traps, making it a challenge to navigate.

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

Removing the background walls will remove the biome in similar fashion to Spider Caves.

Contents[edit | edit source]

Unique Drops
From all Ghouls in Hardmode:
From Vile Ghouls in Hardmode:
From Tainted Ghouls in Hardmode:
From Dreamer Ghouls in Hardmode:
From Basilisks in Hardmode:
From Sand Poachers in Hardmode:
From any enemy:
A Corrupted Underground Desert
A partially Hallowed Underground Desert

Surface Desert[edit | edit source]

A world view of an underground desert from 1.3Console and Mobile versions with a Pyramid. Note the large Pit-type entrance.

On the Desktop version Desktop version and Mobile version Mobile version, the Desert above the Underground Desert may generate with various surface features, including one or more Oasis mini-biomes, or one of several types of entrances. There is a 1 in 3 (33.33%) chance that a world's main Desert will contain one of the various types of entrance. These can assist in locating and accessing the Underground Desert from the surface. The presence of an Oasis does not indicate where the Underground Desert is, as the Oasis mini-biomes can generate atop any of the world's Deserts, regardless of which of them contains the Underground Desert biome.

On the Console version Console version, the Desert above the Underground Desert will always contain a large Pit-style entrance. This makes finding and accessing the Underground Desert from the surface very easy.

On all versions, it is possible for one or more Pyramids to generate in the main Desert. When this happens, the Pyramid will often extend somewhat into the Underground Desert, and thus its tunnel can provide another easy means of entry. As with the OasisDesktop and Mobile versions mini-biome, Pyramids can generate in any of the world's Deserts, regardless of where the Underground Desert is located, and so their presence does not guarantee that the Underground Desert is below.

See Desert for more information about the surface entrances to the Underground Desert.

Notes[edit | edit source]

Tips[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.
  • Minions give several advantages in the underground desert that most other weapons do not. The underground desert's main dangers are fast-moving, knockback resistant enemies and rolling cacti. Minions counteract these by being summonable on the other side of walls, reacting to quick-moving enemies without requiring player interactions, contributing knockback independently of the player's actions, and triggering rolling cacti remotely (which may require summoning them directly on the cacti multiple times or waiting to summon them until an enemy passes by).

Trivia[edit | edit source]

  • In the real world, larval antlions create funnel-like pits in the ground and fling sand at prey that pass by. The funnel and burrow entrance types to the Underground Desert are presumably inspired by this.

History[edit | edit source]

  • Desktop
    • Added Sandstone Chests in world generation.
    • Generation changed to make the biome go to varying depths, making it much deeper than in previous versions.
    • Introduced a brand new music track for the Underground Desert.
    • Lava now spawns at lower levels towards the edge of the biome.
    • The Desert above the Underground Desert may now generate other features than the funnel entrance, and the funnel design has also changed.