Biome Keys

Biome Keys are Hardmode, post-Plantera items used to open Biome Chests. On the PC version, each key has a 0.04% (1/2500) chance of dropping from a monster in the key's respective biome. On the console and mobile versions, they are not dropped directly, and must be crafted from Biome Key Molds.

Any Biome Key dropped prior to defeating Plantera will display the tooltip "It has been cursed by a powerful Jungle creature" and will be unable to open its respective chest until the boss it beaten. However, cursed keys are usable in worlds where Plantera has already been defeated. Biome Keys are consumed upon use.