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The change of background that marks the beginning of the Cavern layer.

The Cavern layer is the largest layer, beginning just below the Underground and extending all the way down until the Underworld layer. It is characterized by darker stone background tiles. Stone is the predominant block in this layer (as opposed to Dirt in the Underground). Caverns contain occasional Underground Cabins where valuables can be found, as well as Mushroom Biomes, dangerous traps, rare and dangerous Spider Nest mini-biomes, and much more.

Lava begins to appear around -2100ft in small pools, which gradually become lava wells at around the -3000ft mark.

Map Size Min Start Depth Average Start Depth Max Start Depth
Small 120 ft 480 ft 840 ft
Medium 180 ft 720 ft 1260 ft
Large 240 ft 960 ft 1680 ft

Contents[edit | edit source]

Map view highlighting the Cavern layer range
Characters Unique Drops
Black Slime.pngBlack Slime
Mother Slime.pngMother Slime
Baby Slime.pngBaby Slime[1]
Giant Worm.pngGiant Worm
Cave Bat.pngCave Bat
Salamander.pngSalamanderDesktop VersionConsole Version
Crawdad.pngCrawdadDesktop VersionConsole Version
Giant Shelly.pngGiant ShellyDesktop VersionConsole Version
Undead Miner.pngUndead Miner(uncommon)
Vampire Miner.pngVampire MinerOld-gen console versionMobile Version3DS version
Cochineal Beetle.pngCochineal Beetle(uncommon)

In Water:

Blue Jellyfish.pngBlue Jellyfish

In Spider Nests:

Wall Creeper.pngWall Creeper

In Hardmode:

Digger Head.pngDigger
Giant Bat.pngGiant Bat
Armored Skeleton.pngArmored Skeleton
Skeleton Archer.pngSkeleton Archer
Rune Wizard.pngRune Wizard(rare)
Ghost (enemy).pngGhost (enemy)(during Halloween)

In Water in Hardmode:

Angler Fish.pngAngler Fish
Green Jellyfish.pngGreen Jellyfish

In Spider Nests
in Hardmode:

Black Recluse.pngBlack Recluse


Dart Trap.pngDart Trap

From Giant Worms
and Diggers:

Whoopie Cushion.pngWhoopie Cushion(rare)

From Cave Bat:

Chain Knife.pngChain Knife(uncommon)
Depth Meter.pngDepth Meter(uncommon)

From Vampire Miner
and Undead Miner:

Mining Shirt.pngMining Shirt(uncommon)
Mining Pants.pngMining Pants(uncommon)

From Undead Miner:

Bone Pickaxe.pngBone Pickaxe(rare)

From Vampire Miner:

Vial of Blood.pngVial of BloodOld-gen console versionMobile Version3DS version

From Tim:

Wizard Hat.pngWizard Hat(always)

From Nymph:

Metal Detector.pngMetal DetectorDesktop VersionConsole Version(50% / 100% Desktop VersionConsole Version chance)

From Cochineal Beetle:

Red Husk.pngRed HuskDesktop VersionConsole VersionOld-gen console versionMobile Version

From Skeleton:

Ancient Iron Helmet.pngAncient Iron Helmet(rare)
Ancient Gold Helmet.pngAncient Gold Helmet(rare)
Bone Sword.pngBone Sword(rare)
Skull.pngSkull(very rare)

From Armored Skeleton:

Beam Sword.pngBeam Sword(rare)

From Skeleton Archer:

Magic Quiver.pngMagic Quiver(uncommon)

From Rune Wizard:

Rune Hat.pngRune Hat(always)
Rune Robe.pngRune Robe(always)

From terrain:

Enchanted Sword (item).pngEnchanted Sword(extremely rare)
Arkhalis.pngArkhalisDesktop VersionConsole Version(incredibly rare)

From Fishing:

Scaly Truffle.pngScaly TruffleDesktop VersionConsole VersionOld-gen console versionMobile Version(specific conditions)
  1. Spawns from Mother Slimes

History[edit | edit source]

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