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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.

Oiled is a Hardmode debuff inflicted by Explosive Trap sentries when the player is wearing a full set of Huntress armor or Red Riding armor. It causes the afflicted target to take an additional 25 damage per second if they are also under the effect of On Fire!, Hellfire, Cursed Inferno, Frostburn, Frostbite, or Shadowflame.[1]


From player

From Duration Chance
Explosive Trap sentry summons Explosive Trap sentry summons(Desktop, Console and Mobile versions) 4–8.5 seconds 1/1 (100%)

Immune NPCs

Enemies immune to Oiled


  • Oiled cannot be inflicted on the player, hence the lack of a buff icon, as it would never be displayed.


  • Desktop Increased the visibility of the Oiled debuff to make it more clear when it is active.
  • Desktop 1.4.1:
    • Now causes a flat, non-stackable 25 additional damage per second, instead of 10 (On Fire!) / 12 (Cursed Inferno) / 14 (Frostburn) / 22 (Shadowflame) additional damage per second.
    • Now also affects entities afflicted by Hellfire.


  1. Information taken from the Desktop version Desktop source code, method UpdateNPC_BuffApplyDOTs() in Terraria.NPC.cs.