Ice biome

See also: Snow biome
The **Ice biome**, also known as the **Underground Tundra** or **Underground Snow biome**, is a biome that is the underground version of the Snow biome, starting at the Cavern layer and stopping at the lava layer. On the Windows Phone version and Nintendo 3DSversion, the Ice biome starts at the Underground layer. It is composed mainly of Snow Blocks and Ice Blocks. Thin Ice can be found generated over water and breaks when a character falls over 4 tiles onto it (unless using the Ice Skates or another accessory crafted from them). The Ice biome is the only place where Frozen Chests ( Ice Chests) can be found naturally.

In Hardmode, the Corruption, Crimson, and Hallow can spread through it, generating Purple, Red, and Pink Ice Blocks respectively. They are unable to spread through Snow Blocks.

On the Windows Phone version and Nintendo 3DSversion, normal-sized worlds only have a 1/3 chance of containing a snow biome, and their respective underground. Furthermore, Armored Vikings, Snow Flinx, Icy Mermen, Ice Tortoises and Ice Mimics will spawn much more rarely than on the PC version, Console version, Old-gen console version, Mobile version, Old Chinese version, tModLoader version, and tModLoader 1.3-Legacy version.

## Contents

CharactersPre-Hardmode:
* ​Ice Bat
* ​Snow Flinx
* ​Spiked Ice Slime
* ​Undead Viking
* ​Undead Miner(uncommon)
* ​Cyan Beetle(uncommon)
* ​Nymph(rare)

In Hardmode:
* ​Armored Viking
* ​Ice Tortoise
* ​Ice Elemental
* ​Icy Merman
* ​Ice Mimic

In Hardmode with overlapped
Crimson/Corruption/Hallow:
* ​Pigron

Unique Treasures
* ​Ice Boomerang
* ​Ice Blade
* ​Ice Skates
* ​Snowball Cannon
* ​Blizzard in a Bottle
* ​Flurry Boots
* ​Ice Mirror
* ​Fish (item)
* ​Ice Machine

Unique DropsFrom Spiked Ice Slimes and Ice Bats:
* ​Ice Cream

From Ice Tortoises and Icy Mermen:
* ​Milkshake

From Snow Flinx:
* ​Snowball Launcher
* ​Compass
* ​Flinx Fur

From Ice Bat:
* ​Bat Bat
* ​Depth Meter(Only on )

From Armored Viking:
* ​Ice Sickle
* ​Compass

From Undead Viking:
* ​Viking Helmet
* ​Compass
* ​Hook

From Cyan Beetle:
* ​Cyan Husk

From Ice Tortoise:
* ​Frozen Turtle Shell
* ​Ice Sickle

From Ice Elemental and Icy Merman:
* ​Frost Staff
* ​Ice Sickle

From Pigron:
* ​Bacon
* ​Ham Bat
* ​Pigron Kite
* ​Pigron Minecart

From Ice Mimic:
* ​Frostbrand
* ​Ice Bow
* ​Flower of Frost
* ​Toy Sled

From any enemy in Hardmode:
* ​Frozen Key(1/2500 chance, Only on )
* ​Frozen Key Mold(1/2500 chance)

From terrain:
* ​Snow Block
* ​Slush Block
* ​Ice Block
* ​Purple Ice Block(Corruption)
* ​Red Ice Block(Crimson)
* ​Pink Ice Block(Hallow)

From fishing:
* ​Atlantic Cod
* ​Frost Minnow
* ​Frozen Crate
* ​Boreal Crate(Hardmode only)

From Fishing in overlapped Crimson/Corruption/Hallow:
* ​Scaly Truffle

Music
* ​Ice
* ​Ice (Otherworldly)

## Notes

* Most enemies in the Ice biome as well as in the Snow biome inflict the Chilled debuff, and more rarely the Frozen debuff.

## Gallery

### Backgrounds

This content is transcluded from Biome backgrounds § Ice biome (Underground).

* Multiple thin layers of ice stacked on top of each other
* Smooth wall of ice
* Bumpy ice wall
* Irregular ice layers stacked on top of each other

####  Ice biome (Cavern)

* Ice crystals
* Darker ice wall
* Bumpy ice wall with extra ice rocks
* Smooth wall littered with ice rocks

## History

PC version
* Desktop 1.4.0.1:
	+ Now generates further away from spawn point, and in a more narrow shape.
	+ Added Otherworldly Ice track from the cancelled *Terraria: Otherworld*.

* Desktop 1.3.0.1: Thin Ice mini biome added.

* Desktop 1.2: Introduced.

Console version
* Console 1.02: Introduced.

Nintendo Switch version
* Switch 1.0.711.6: Introduced.

Mobile version
* Mobile 1.2.6508: Introduced.

Nintendo 3DSversion
* 3DS-Release: Introduced.