Calamity Mod Wiki
The Codebreaker
  • The Codebreaker (Completed).gif
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
PlaceableTango Tick1.png
Dimensions5 wide × 8 high
Use time14 Very Fast
Map color#5C6B70 ●
SellNo value

The Codebreaker is a piece of constructible furniture that consists of six different components scattered throughout progression: Codebreaker Base, Decryption Computer, Long Ranged Sensor Array, Advanced Display, Voltage Regulation System, and Auric Quantum Cooling Cell. It is used to decrypt schematics to unlock various items, and also used to initiate the Exo Mechs boss.


Item Tooltip Rarity Function Placed Image
Codebreaker Base Codebreaker Base
n/a Rarity Level: 3 Allows other components to be placed on top of The Codebreaker (Base).png
Decryption Computer Decryption Computer
Can be placed on the Codebreaker
Allows you to decrypt advanced schematics
Doing so allows you to learn how to craft new things
Rarity Level: 3 Allows access to the Decryption UI
Capable of decrypting Encrypted Schematic (Planetoid)Encrypted Schematic (Planetoid)
The Codebreaker (Decryption Computer).gif
Long Ranged Sensor Array Long Ranged Sensor Array
Can be placed on the Codebreaker Rarity Level: 5 Allows Encrypted Schematic (Jungle)Encrypted Schematic (Jungle)
to be decrypted
The Codebreaker (Long Ranged Sensor Array).gif
Advanced Display Advanced Display
Can be placed on the Codebreaker Rarity Level: 8 Allows Encrypted Schematic (Hell)Encrypted Schematic (Hell)
to be decrypted
The Codebreaker (Advanced Display).gif
Voltage Regulation System Voltage Regulation System
Can be placed on the Codebreaker Rarity Level: 12 Allows Encrypted Schematic (Ice)Encrypted Schematic (Ice)
to be decrypted
The Codebreaker (Voltage Regulation System).png
Auric Quantum Cooling Cell Auric Quantum Cooling Cell
Can be placed in the Codebreaker, completing it
The completion of the Codebreaker allows you to make contact with its original creator
Attempting to do so may have dire consequences
Rarity Level: 15 Reduces decryption time from 2 minutes to 15 seconds
Allows Draedon to be contacted
The Codebreaker (Auric Quantum Cooling Cell).gif



Most components of The Codebreaker are required to be unlocked through decryption. If the requirements have not been met, two lines of tooltip are added at the bottom of these items:
You don't have sufficient knowledge to create this yet
A specific schematic must be deciphered first

The requirements are listed as follows:

  • Codebreaker Base has no special requirements.
  • Decryption Computer requires the Sunken Sea schematic to be found.
  • Long Ranged Sensor Array requires the Planetoid schematic to be decrypted.
  • Advanced Display requires the Jungle schematic to be decrypted.
  • Voltage Regulation System requires the Hell schematic to be decrypted.
  • Auric Quantum Cooling Cell requires the Ice schematic to be decrypted. However, it can also be crafted if the world was created before the update.


  • The Codebreaker cannot be destroyed by explosives.
  • Although the codebreaker base is only a 5x3 model, it still requires enough space for the 5x8 fully upgraded code breaker to be placed down.