Underground Jungle

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A Jungle and an Underground Jungle on a large map.

The Underground Jungle is a dense network of small caverns, composed primarily of Mud, pools of Water, Thorny bushes, and Bee Hive traps. It is located below the Surface of the Jungle biome and extends through to the Cavern layer.

The Underground Jungle always contains the Jungle Temple and 3 to 7 Bee Hive mini-biomes (depending on world size).

Common treasure rooms are Jungle Shrines, Underground Cabins, and Living Mahogany Trees(Desktop, Console and Mobile versions).

In Hardmode, all enemies have a chance of dropping a Jungle Key ((Desktop, Console and Mobile versions)) / Jungle Key Mold ((Old-gen console and 3DS versions)).

Furthermore, the Underground Jungle undergoes several minor changes throughout the course of Hardmode:

  • Upon entering Hardmode, it becomes prone to being converted by the Evil biome and starts spawning Chlorophyte Ore and (Old-gen console and 3DS versions) Life Fruit.
  • After defeating one mechanical boss, Life Fruit (Desktop, Console and Mobile versions) begin spawning / (Old-gen console and 3DS versions) spawn at a faster rate.
  • Once all three mechanical bosses have been defeated, Plantera's Bulbs begin spawning.


  • GrubbyGrubby(Desktop, Console and Mobile versions)
  • SluggySluggy(Desktop, Console and Mobile versions)
  • BuggyBuggy(Desktop, Console and Mobile versions)
Unique Treasures
Unique Drops
From any enemy in Hardmode:
  • Jungle KeyJungle Key(1/2500 chance, only on (Desktop, Console and Mobile versions))
  • Jungle Key MoldJungle Key Mold(Old-gen console and 3DS versions)(1/2500 chance)
From any enemy after a Mechanical Boss has been defeated:
  • YeletsYelets(Desktop, Console and Mobile versions)(1/200 chance)
  • BeeswaxBeeswax(Old-gen console and 3DS versions)
  • CoffeeCoffee(Desktop, Console and Mobile versions)
  • Violet HuskViolet Husk(Desktop, Console, Old-gen console and Mobile versions)
From Moths:
From Plantera:
From fishing:


The Underground Jungle can be found directly underneath the surface Jungle biome. It starts around the middle of the Underground layer, at these depths:

Map size Min Start Depth Average Start Depth Max Start Depth
Small 60 ft 240 ft 420 ft
Medium 90 ft 360 ft 630 ft
Large 120 ft 480 ft 840 ft



This content is transcluded from Biome backgrounds § Underground Jungle (Underground layer).

Underground Jungle (Cavern)


  • Desktop 1.0.6:
    • More gems spawn in the Underground Jungle.
    • Thorny bushes growing from Jungle grass are now destroyed on contact with the player.
    • Underground Jungle now has Mud Background to avoid spawning Underground/Cavern layer enemies.
    • Added Jungle Spores.
  • Desktop 1.0.5:
    • Now has a unique track that plays both in the Underground Jungle and surface Jungle.
    • Hornets and Man Eaters no longer drop Jungle armor.
    • Doctor Bones now exclusive to Jungle and Underground Jungle.
    • Added Moonglow to Jungle and Underground Jungle.
  • Desktop 1.0.4:
    • Now found directly under the surface Jungle biome.
    • Jungle plants now grow underwater.
    • Added Jungle Bat and Piranha to Jungle and Underground Jungle.