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  • Keybrand item spriteold Keybrand item sprite
Stack digit 1.png
Damage105 (Desktop, Console and Mobile versions) / 55 (Old-gen console and 3DS versions) (Melee)
Knockback6.5 (Strong) (Desktop, Console and Mobile versions) /
6 (Average) (Old-gen console and 3DS versions)
Critical chance20% (Desktop, Console and Mobile versions) / 4% (Old-gen console and 3DS versions)
Use time20 (Very fast) (Desktop, Console and Mobile versions) /
22 (Fast) (Old-gen console and 3DS versions)
TooltipDeals more damage to injured foes
RarityRarity level: 8
Sell4 GC
Research1 required
Obtained from Obtained from
(Desktop, Console and Mobile versions) The Keybrand attacking a Target Dummy and a Mimic. Note the increasing damage based on the enemy's health.
(Old-gen console and 3DS versions) The Keybrand attacking a Target Dummy.

The Keybrand is a Hardmode, post-Plantera sword. On the Desktop version Desktop version, Console version Console version, and Mobile version Mobile version, it deals increased damage against previously injured enemies. Upon hitting enemies that have less than 10% health remaining, the Keybrand deals a maximum of 150% additional damage for a total of 250%, as well as causing a sparkling visual effect upon damaging an enemy. The Keybrand also has a 20% critical strike chance as opposed to the usual 4%. The Keybrand has a 1/200 (0.5%) / 399/40000 (1%) chance of being dropped by Blue Armored Bones, Hell Armored Bones, and Rusty Armored Bones in the post-Plantera Dungeon.

Its best modifier is Legendary.


  • (Desktop, Console and Mobile versions) The following formula is used when determining the amount of damage that will be dealt:[1]
    • If the hit enemy has more than 10% HP: [math]\displaystyle{ \mathit{Damage} \times \left(1 + \frac{5}{3} \times \left(1 - \frac{\mathit{HP_{Current}}}{\mathit{HP_{Max}}}\right)\right) }[/math]
(This means, for every 1% of the enemy's health missing, the damage will be increased by [math]\displaystyle{ \frac{1}{60} }[/math].)
  • If the hit enemy has less than 10% HP: [math]\displaystyle{ \mathit{Damage} \times 2.5 }[/math]
  • In Don't dig up(Desktop, Console and Mobile versions) and Get fixed boi(Desktop, Console and Mobile versions) worlds, the Keybrand receives the following changes:
    • Switched place with Katana. As a result, it is sold by the Traveling Merchant, instead of dropped by Hardmode Dungeon enemies.
    • Damage decreased from 105 to 15.
    • Value decreased from 20 GC to 10 GC.


Achievement Robbing the Grave.png
Robbing the Grave • Obtain a rare treasure from a difficult monster in the dungeon.
Obtain a rare item from an enemy in the post-Plantera Dungeon. (Desktop, Console and Mobile versions)
Category: Explorer Explorer


  • (Desktop, Console and Mobile versions) The Keybrand's ability to do more damage against previously injured targets makes it an exceptionally good choice against slow-moving, high-health targets such as Nailhead or the Ogre.


  • The Keybrand is based on the Keyblade, a weapon used in the action role-playing game series Kingdom Hearts. It bears an especially strong resemblance to the Keyblade named the Kingdom Key, which Sora wields.
    • (Desktop, Console and Mobile versions) The Keybrand's visual effects when striking enemies are likely a reference to similar bright effects that appear when striking enemies with the Keyblade throughout the Kingdom Hearts series.
  • Despite being a key, it does not unlock anything.
  • The Keybrand is the best of the weapons that create no projectiles.
  • Until 1.3.5, items had an unused internal name. Between its introduction and, the Keybrand's name was Lockblade,[2] which may have been its original name during development. This name was never visible in-game.


  • Desktop 1.4.4:
    • Damage increased from 85 to 105.
    • Bonus critical chance increased from 17% to 20%.
    • Reduced the maximum power of the scaling damage effect.
  • Desktop
    • Damage increased from 70 to 85.
    • Now deals up to 150% more damage based on how injured an enemy is.
  • Desktop
    • Can now autoswing.
    • Damage increased from 55 to 70.
    • Knockback increased from 6 to 6.5.
    • Critical strike chance increased from 4% to 17%.
    • Use time decreased from 22 to 20.


  1. Information taken from the Desktop version Desktop source code, method ItemCheck_MeleeHitNPCs() in Terraria.Player.cs. There may be inaccuracies, as the current Desktop version Desktop version is
  2. Information taken from the Desktop version Desktop source code, method SetDefaults1() in Terraria.Item.cs.