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 Glowing Mushroom biomes, dangerous traps, rare and dangerous Spider Cave 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
Template:Item/options
Template:Item/options
Characters
-
Black Slime - Mother Slime
- Baby Slime[1]
- Giant Worm
- Skeleton
- Cave Bat
- Salamander
- Crawdad
- Giant Shelly
- Undead Miner(uncommon)
- Vampire Miner
- Tim(rare)
- Nymph(rare)
- Pinky(rare)
- Cochineal Beetle(uncommon)
- Mouse
In Water:
In Hardmode:
- Digger
- Giant Bat
- Armored Skeleton
- Skeleton Archer
- Rune Wizard(rare)
- Ghost (enemy)(during Halloween)
In Water in Hardmode:
- Dart Trap
- Boulder
- Explosives(rare)
Unique Drops
From Giant Worms and Diggers:
- Whoopie Cushion(rare)
From Cave Bat:
- Chain Knife(uncommon)
- Depth Meter(uncommon)
From Vampire Miner and Undead Miner:
- Mining Shirt(uncommon)
- Mining Pants(uncommon)
From Undead Miner:
- Bone Pickaxe(rare)
From Vampire Miner:
From Tim:
- Wizard Hat(always)
From Nymph:
- Metal Detector
(50% / 100% chance)
From Cochineal Beetle:
From Skeleton:
- Ancient Iron Helmet(rare)
- Ancient Gold Helmet(rare)
- Bone Sword(rare)
- Skull(very rare)
From Armored Skeleton:
- Beam Sword(rare)
From Skeleton Archer:
- Magic Quiver(uncommon)
- Marrow(uncommon)
From Rune Wizard:
From terrain:
- Enchanted Sword(extremely rare)
- Arkhalis
(incredibly rare)
From Fishing:
- Scaly Truffle
(specific conditions)
- ↑ Spawns from Mother Slimes
History
- Desktop 1.3.2: Geysers now spawn as traps.
- Desktop 1.3.0.1:
- Marble and Granite Caves can now be found anywhere in the cavern layer.
- Detonator traps added.
- Desktop 1.2.2: New "Alternate Underground" soundtrack.
- Desktop 1.2: Enchanted Sword (item) can now be found as a rare drop from the terrain.
- Desktop 1.1: Random traps added.
- Desktop-Release: Introduced.
- Console-Release: Introduced.
- Switch 1.0.711.6: Introduced.
- Mobile-Release: Introduced.
- 3DS-Release: Introduced.
Biomes and Structures
Mini-Biomes
Structures and Other Biomes