Ancient Treasure Chest

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Ancient Treasure Chest
  • Ancient Treasure Chest.png Locked Ancient Treasure Chest.png
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
TypeFurnitureStorageCrafting material
PlaceableTango Tick1.png
Dimensions2 wide × 2 high
Use time15 Average
Map color#473129 ●
RarityRarity Level: 0
Tile value500
Sell 1 Silver Coin.png
Research1 required

Ancient Treasure Chests are chests found only in the Abyss that contain rare and unique items. Each Ancient Treasure Chest will contain one unique item along with other standard loot. While they are placed during world creation, they are initially covered in vines and can only be opened once Skeletron is defeated.


The Ancient Treasure Chest always contains one primary item and a few common items.

Primary Items
Archerfish Archerfish
Anechoic Plating Anechoic Plating
Ball O' Fugu Ball O' Fugu
Black Anurian Black Anurian
Depths Charm Depths Charm
Herring Staff Herring Staff
Iron Boots Iron Boots
Lionfish Lionfish
Strange Orb Strange Orb
Torrential Tear Torrential Tear
Item Quantity
Lesser Luck Potion Lesser Luck Potion 1-2
Gills Potion Gills Potion
Shine Potion Shine Potion
Teleportation Potion Teleportation Potion
Battle Potion Battle Potion 1-2
Flipper Potion Flipper Potion
Ironskin Potion Ironskin Potion
Thorns Potion Thorns Potion
Healing Potion Healing Potion 1-2
Mana Potion Mana Potion 2-4
Abyss Torch Abyss Torch 3-11
Gold Coin Gold Coin 2-4


Used in


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Fixed its auto-unlock still crashing the game in multiplayer.
    • Fixed improper sprite cropping on its item sprite.
  • Fixed it crashing the game in multiplayer from attempting to be unlocked multiple times.
  • Fixed it causing crashes and being able to be opened before defeating Skeletron.