Biome Key Molds

  

Old-gen console/Windows Phone/3DS-Only Content: This information applies only to the Old-gen console, Windows Phone, and 3DS versions of Terraria.

Biome Key Molds

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Statistics

Type	Crafting material
Rarity	08*

For tips on obtaining Key Molds, see Guide:Farming Biome Keys or Key Molds.

Biome Key Molds are extremely rare Hardmode crafting materials that are used to craft Biome Keys, which open Biome Chests once Plantera is defeated. After the Wall of Flesh is defeated, every enemy killed within an eligible biome has a 0.04*1/2500 (0.04%) chance of dropping a Biome Key Mold, with the exception of Meteor Heads and statue-spawned enemies. The type of key mold that is dropped depends on the biome the player is currently in (Jungle, Corruption, Crimson, Hallow, or Snow).

On the  PC,  Console,  Mobile,  Old Chinese,  tModLoader, and  tModLoader Legacy versions, Biome Keys drop instead of Key Molds, and all existing Key Molds will change into their respective Keys if any exist in the world.

Types

Jungle Key Mold

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Statistics

Type	Crafting material
Tooltip	Used for crafting a Jungle Key
Rarity	08*

• Internal Item ID: 1803

Corruption Key Mold

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Statistics

Type	Crafting material
Tooltip	Used for crafting a Corruption Key
Rarity	08*

• Internal Item ID: 1804

Crimson Key Mold

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Statistics

Type	Crafting material
Tooltip	Used for crafting a Crimson Key
Rarity	08*

• Internal Item ID: 1805

Hallowed Key Mold

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Statistics

Type	Crafting material
Tooltip	Used for crafting a Hallowed Key
Rarity	08*

• Internal Item ID: 1806

Frozen Key Mold

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Statistics

Type	Crafting material
Tooltip	Used for crafting a Frozen Key
Rarity	08*

• Internal Item ID: 1807

Crafting

Used in

Result	Ingredients	Crafting station
only: Corruption Key	Temple Key Corruption Key Mold Soul of Fright5 Soul of Might5 Soul of Sight5	By Hand
only: Crimson Key	Temple Key Crimson Key Mold Soul of Fright5 Soul of Might5 Soul of Sight5
only: Frozen Key	Temple Key Frozen Key Mold Soul of Fright5 Soul of Might5 Soul of Sight5
only: Hallowed Key	Temple Key Hallowed Key Mold Soul of Fright5 Soul of Might5 Soul of Sight5
only: Jungle Key	Temple Key Jungle Key Mold Soul of Fright5 Soul of Might5 Soul of Sight5

Notes

• Key molds can also be dropped by bosses, like any other enemy, if the player is in the right biome.
• Enemies in artificially created Corruption and Crimson biomes will still drop appropriate key molds, even if the world does not have a corresponding Biome Chest.
• Because of how many slimes it spawns during the battle, the King Slime is an efficient way to get biome key molds.

Trivia

• Unlike some real-world molds, these are consumed in the crafting process and cannot be reused.
• Although the key molds were removed in 1.3.0.1, their sprites still exist within the game files of the  PC version.
• Since it was added after the removal of Key Molds, the Desert Key does not have a corresponding mold.

History

 PC version

• Desktop 1.3.0.1:
  • Keys to Biome Chests are now dropped instead of molds.
  • Biome Chests can only be opened after Plantera has been defeated.
  • Removed. All molds obtained in previous versions have been replaced with keys.

• Desktop 1.2.3: Drop chance increased from 0.025*1/4000 (0.025%) to 0.040*1/2500 (0.040%).

• Desktop 1.2.1: Introduced.

 Console version

• Console 1.0.933.1: ()
  • Keys to Biome Chests are now dropped instead of molds.
  • Biome Chests can only be opened after Plantera has been defeated.
  • Removed. All molds obtained in previous versions have been replaced with keys.

• Console 1.0.750.0: (4)
  • Keys to Biome Chests are now dropped instead of molds.
  • Biome Chests can only be opened after Plantera has been defeated.
  • Removed. All molds obtained in previous versions have been replaced with keys.

• Console 1.02: Introduced.

 Mobile version

• Mobile 1.2.6508: Introduced.

Nintendo 3DS version

• 3DS-Release: Introduced.