Calamity Mod Wiki
Heart of Darkness.gif
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Revengeance Mode-Only Content: This information applies only to Revengeance Mode and Revengeance Mode worlds.
Heart of Darkness
  • Heart of Darkness.gif
Stack digit 1.png
TypeAccessoryCrafting material
TooltipYou constantly gain rage over time
Rage does not fade away when out of combat
Revengeance drop
RarityRarity Level: 3
Sell 80 Silver Coin.png
Dropped by
Any Boss in Revengeance Mode11.67%
Not to be confused with Dark Heart, an enemy summoned by The Hive Mind.

The Heart of Darkness is a Revengeance Mode-exclusive Pre-Hardmode accessory that fills up the Rage Meter by 1% of the total meter every second. It also prevents the Rage Meter from emptying out of combat.

Any Boss Treasure Bag in Revengeance Mode has a 1.67% chance of containing this accessory.


Used in


  • All boss bags have a 5% chance of containing any of the three universal Revengeance accessories, the other two being Stress Pills and Laudanum, and then a 1/3 roll is cast for which accessory is given. This results in a 1.67% chance to obtain any of the three accessories, however the player can never receive more than one at a time.