Ichor (debuff)

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This article is about the debuff. For the crafting material, see Ichor.

Ichor is a Hardmode debuff that is inflicted by the ranged attack of an Ichor Sticker found in the Underground Crimson or by the Tainted Ghoul found in Crimson Underground Deserts in Hardmode. It can also be inflicted by weapons and the ammo crafted with Ichor. On Desktop version Desktop, Console version Console, and Mobile version Mobile, the debuff lowers the afflicted player's defense by 15, or adds 15 armor penetration when calculating damage against afflicted enemies. On Old-gen console version Old-gen console and 3DSNintendo 3DS version, it lowers the afflicted entity's defense by 20.


From player

From Duration Chance
Golden Shower Golden Shower 10 seconds 100%
Ichor Bullet Ichor Bullet 10 seconds 100%
Ichor Arrow Ichor Arrow 10 seconds 100%
Flask of Ichor Flask of Ichor 10–19 seconds 100%
Ichor Dart Ichor Dart(Desktop, Console and Mobile versions) 7–14 seconds 100%
Bladetongue Bladetongue(Desktop, Console and Mobile versions) 5–9 seconds (sword)
3–7 seconds (projectile)

From enemy

From Duration Chance
Ichor StickerIchor Sticker 15 / 30 / 37.5 seconds 1/1 (100%)
Tainted GhoulTainted Ghoul(Desktop, Console and Mobile versions) 7 / 14 / 17.5 seconds 1/1 (100%)

Immune NPCs

Enemies immune to Ichor


  • Enemies and players afflicted with Ichor are tinted golden. They will be visible in the dark but do not emit light.
  • (Old-gen console and 3DS versions) Despite Ichor Stickers inflicting the Ichor debuff, they are not immune to the effect.
  • (Old-gen console and 3DS versions) The debuff will not reduce an enemy's defense below 0.


  • Because of its effect, Ichor is useful even in the late game, since very few enemies are resistant to it. It is especially useful against enemies with high defense (e.g. Skeletron Prime (especially during head-spins), Duke Fishron, etc.)
  • A common tactic is to use an Ichor-inflicting weapon on an enemy, and then finish it off with the player's main weapon.


  • The damage increase from Ichor on the player changes depending on the world difficulty (Expert(Desktop, Console and Mobile versions)/Master Mode(Desktop, Console and Mobile versions)), due to how the effectiveness of defense changes with the difficulty.

See also


  • Desktop 1.4.1: Defense reduction has been decreased by 25% from 20 to 15.