Ice 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. 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 can be found naturally.
The player is considered to be in an Ice biome if they are below the border of the Underground and Cavern layers, and there are at least 1500 Snow or Ice Blocks nearby (reduced to only 300 Snow or Ice Blocks in Skyblock worlds).
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. In these infected areas, all of the Ice biome's enemies can spawn, in addition to the enemies from the respective underground evil biome or Hallow. Furthermore, the Pigron spawns exclusively in infected Ice biome areas.
Contents
Crimson/Corruption/Hallow:
Frozen Key(1/2500 chance)
Amarok(1/300 chance)
Notes
- Most enemies in the Ice biome as well as in the Snow biome inflict the Chilled debuff, and more rarely the Frozen debuff.
- An artificial Ice biome can not be made using Slush Blocks.
Gallery
Backgrounds
This content is transcluded from Biome backgrounds § Ice biome (Underground).
Ice biome (Cavern)
History
- 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 1.02: Introduced.
- Switch 1.0.711.6: Introduced.
- Mobile 1.2.6508: Introduced.
- 3DS-Release: Introduced.








