| PC-Only Content: This information (or parts of it) applies only to the PC version of Terraria.
- For the breakable object found in The Crimson, see Crimson Heart.
The Demon Heart is an Expert Mode consumable item from the Treasure Bag dropped by the Wall of Flesh. It gives the player a sixth accessory slot to use. This effect does not stack and may only be used once per player. When not in Expert Mode, the item and its effect are negated and the accessory slot will be grayed out if it has an item in it, or simply disappears if the player has nothing in a sixth slot upon entering a normal mode world.
- 220.127.116.11: Fixed issue where you could get new characters with the 6th accessory slot unlocked.
- 18.104.22.168: Introduced.