Keys

Keys are a category of tools, most being used to open locked Chests. Apart from the Shadow Key, all keys are consumed upon use. Biome Keys can only be used once Plantera has been defeated.
Key	Source 	Purpose 	Notes
 	Various sources, mainly found inside the Dungeon. 	Opens in the Dungeon 	
 	in the Dungeon. 	Opens in the Underworld 	
 	Dropped from Plantera. 	Opens the Lihzahrd Door to the Jungle Temple.	One drops each time Plantera is defeated.
 	Hardmode drop in Jungle and Underground Jungle biomes. 	Opens the Dungeon's 	Drop rate is
 	Hardmode drop in Snow or Ice biomes. 	Opens the Dungeon's 	Drop rate is
 	Hardmode drop in Hallow and Underground Hallow biomes. 	Opens the Dungeon's 	Drop rate is
 	Hardmode drop in Corruption and Underground Corruption biomes.	Opens the Dungeon's 	Drop rate is
 	Hardmode drop in Crimson and Underground Crimson biomes. 	Opens the Dungeon's 	Drop rate is
 	Hardmode drop in Oasis, Desert, and Underground Desert biomes.	Opens the Dungeon's 	Drop rate is
 	 	Used to spawn a Hallowed Mimic. 	Leave as the only item in any chest to spawn the Mimic.
 	 	Used to spawn a Corrupt or Crimson Mimic. 	Leave as the only item in any chest to spawn the Mimic.