Debuffs are temporary, negative status effects, as opposed to buffs, which affect the player positively. Once a debuff has been inflicted, the debuff's icon will display to the upper right / upper left of the player's window, along with a icon shading / count-down timer, showing how much longer the debuff will be in effect. The counter will begin at one minute/second less than its listed duration and show zero during the final minute/second.

Most debuffs can only be inflicted by enemies, however it is also possible for traps and Red Potion to inflict some debuffs on players.

Players can inflict various debuffs on most enemies. See Notes for a list of weapons that inflict debuffs on enemies.

In general, damaging debuffs will stack: If a player is both Poisoned and On Fire!, they will take damage from both debuffs. However, Poisoned and Venom do not stack, and Poisoned will take precedence over Venom. Death always cancels any active buffs or debuffs.

Unlike buffs, debuffs cannot be canceled by right-clicking their icons. The Nurse can cancel debuffs at a cost of 750 per active debuff. This does not apply to the Potion Sickness debuff, because when trying to cancel the Potion Sickness debuff, the Nurse will not charge for recovery of the debuff and the debuff will not be canceled, but the Potion Sickness icon will disappear.

From enemies[]

Icon	Name	Effect	Tooltip	Duration
	Poisoned Internal Buff ID: 20	Players turn green, slowly lose health over time, and cannot regenerate.	Slowly losing life	3-10 seconds / 2-20 seconds / 7.5-25 seconds
	Darkness Internal Buff ID: 22	Players turn blue and brightness is lowered.	Decreased light vision	15 seconds / 5-30 seconds / 37.5 seconds
	Cursed Internal Buff ID: 23	Prevents the player from using items.	Cannot use any items	4 seconds / 8 seconds / 10 seconds
	On Fire! Internal Buff ID: 24	The player is engulfed in flames, loses health over time, and cannot regenerate.	Slowly losing life	7-10 seconds / 14-20 seconds / 17.5-25 seconds
	Bleeding Internal Buff ID: 30	Prevents the player from regenerating health naturally. Since enemies cannot regenerate naturally, they will instead lose health when they have this debuff.	Cannot regenerate life	3-45 seconds / 6-90 seconds / 7.5-112.5 seconds
	Confused Internal Buff ID: 31	◀ Left and ▶ Right's effects are switched.	Movement is reversed	7 seconds / 14 seconds / 17.5 seconds
	Slow Internal Buff ID: 32	Lowers the player's maximum movement speed.	Movement speed is reduced	5-16 seconds / 10-32 seconds / 12.5-40 seconds
	Weak Internal Buff ID: 33	Decreases the player's physical capabilities.	Physical abilities are decreased	1-5 minutes / 2-10 minutes / 2.5-12.5 minutes
	Silenced Internal Buff ID: 35	Prevents the player from using items requiring mana.	Cannot use items that require mana	7 seconds / 14 seconds / 17.5 seconds
	Broken Armor Internal Buff ID: 36	Halves the player's defense.	Defense is cut in half	10 seconds-2 minutes / 16.25 seconds-4 minutes / 25 seconds-5 minutes
	Horrified Internal Buff ID: 37	Causes the player to die if they escape the Underworld.	You have seen something nasty, there is no escape.	While fighting Wall of Flesh
	The Tongue Internal Buff ID: 38	Pulls the player directly in front of the Wall of Flesh. Goes through tiles.	You are being sucked into the mouth	While in contact with The Tongue
	Cursed Inferno Internal Buff ID: 39	Engulfs the player in cursed flames that deal damage over time. Cursed flames cannot be extinguished by water.	Losing life	7-8 seconds / 14-16 seconds / 17.5-20 seconds
	Frostburn Internal Buff ID: 44	Affected players and enemies lose health over time and cannot regenerate.	It's either really hot or really cold. Either way it REALLY hurts	1-8 seconds
	Chilled Internal Buff ID: 46	Lowers the player's maximum movement speed.	Your movement speed has been reduced	10-45 seconds / 20 seconds-90 seconds / 25-112.5 seconds
	Frozen Internal Buff ID: 47	Prevents the player from moving or using items.	You can't move!	1-1.5 seconds / 2-3 seconds / 2.5-3.75 seconds
	Ichor Internal Buff ID: 69	Causes the player to glow yellow along with the loss of 15 / 20 defense.	Reduced defense	15 seconds / 30 seconds / 62.5 seconds
	Acid Venom Internal Buff ID: 70	Causes the player to turn purple, lose health over time, and not regenerate.	Losing life	8 seconds / 16 seconds / 20 seconds
	Blackout Internal Buff ID: 80	Severely lowers the brightness of light, making it nearly impossible to see.	Light vision severely reduced	3 seconds / 6 seconds / 7.5 seconds
	Electrified Internal Buff ID: 144	Causes the player to take significant damage when moving and a smaller amount of damage when still.	Moving hurts!	4-8 seconds
	Moon Bite Internal Buff ID: 145	Prevents the player from healing via the Vampire Knives or Spectre Hood.	You are unable to absorb healing effects	14 seconds / 16 seconds / 35 seconds
	Feral Bite Internal Buff ID: 148	Increases the player's damage but decreases health regeneration as well as applying other random debuffs.	Increased damage, Decreased life regen, Causes status effects	3 seconds-90 seconds
	Webbed Internal Buff ID: 149	Causes the player to be stuck where they were hit. Players are still able to use items while this effect is applied.	You are stuck	1 second
	Stoned Internal Buff ID: 156	Prevents the player from moving horizontally or using items. The player will take increased fall damage, which cannot be negated by Wings or the Lucky Horseshoe.	You are completely petrified!	1-4 seconds
	Obstructed Internal Buff ID: 163	Almost completely darkens the screen except for a small area around the player. Causes the player to bleed.	You can't see!	While being attacked by a Brain Suckler
	Distorted Internal Buff ID: 164	Causes the player to float upwards and downwards based on their position.	Gravity around you is distorted	6-12 seconds / 12-24 seconds / 15-30 seconds
	Withered Armor Internal Buff ID: 195	Halves the player's defense.	Your armor is lowered!	5 seconds / 10 seconds / 12.5 seconds
	Withered Weapon Internal Buff ID: 196	Halves the player's damage.	Your attacks are weaker!	5 seconds
	Oozed Internal Buff ID: 197	The player's movement speed is severely reduced.	Movement is significantly reduced	14 seconds / 28 seconds / 35 seconds

From items and environment[]

Icon	Name	Effect	Tooltip	Duration
	Mana Sickness Internal Buff ID: 94	Magic damage is reduced by 25%, the amount of damage reduced is reduced by 1% every 1/5 second.	Magic damage reduced by	5-10 seconds
	Potion Sickness Internal Buff ID: 21	Prevents the player from drinking healing potions and restoration potions.	Cannot consume anymore healing items	60 seconds (45 with a Philosopher's Stone/Charm of Myths)
	Chaos State Internal Buff ID: 88	Causes the player to lose 1/7th / 1/6th of their maximum health if they use the Rod of Discord while the debuff is applied.	Using the Rod of Discord will take life	6 seconds
	Suffocation Internal Buff ID: 68	Causes the player to take damage over time while buried in Sand, Slush, or Silt.	Losing life	While in contact with fallen Silt/Sand/Slush
	Burning Internal Buff ID: 67	Causes players to burn, losing health, regeneration speed, and movement speed.	Losing life and slowed movement	While in contact with Meteorite, Hellstone, or Hellstone Brick
	Tipsy Internal Buff ID: 25	-4 defense +2% critical hit on melee attacks +10% melee attack speed +10% melee damage	Increased melee abilities, lowered defense	2 minutes
	Lovestruck Internal Buff ID: 119	Affected entities emit cosmetic red hearts.	You are in love!	30 seconds
	Stinky Internal Buff ID: 120	Green fumes appear around you. (Visual effect)	You smell terrible	30 seconds
	Water Candle Internal Buff ID: 86	Increases the spawn rate and maximum number of enemies on screen.	Increased monster spawn rate	When near a placed Water Candle
	Mighty Wind Internal Buff ID: 194	Pushed based on wind direction.	The wind moves you around!	Infinite while in a Sandstorm
	Creative Shock Internal Buff ID: 199	Cannot build or break blocks.	You have lost the power of creation!	Infinite during the Old One's Army event
	Peckish Internal Buff ID: 332	No effect.	You could eat, but it's not so bad.	When at full Hunger, for 5 minutes.
	Hungry Internal Buff ID: 333	Decreases the player's defense, damage, and melee attack speed.	You are quite hungry and feeling weak.	When at half Hunger, for 5 minutes.
	Starving Internal Buff ID: 334	2% of the player's maximum health is lost every second.	You are starving to death! Eat immediately!	When at no Hunger, until food is eaten or the player dies.
	Shimmering Internal Buff ID: 353	The player sinks through blocks and is invincible to all damage except boss attacks.	You've gone insubstantial!	When submerged in Shimmer or when trying to fish in Shimmer.

Other debuffs[]

Icon	Name	Effect	Tooltip	Duration
	Midas Internal Buff ID: 72	Causes affected enemies to drop more coins than usual on death.	Drop more money on death	15 minutes
	Oiled Internal Buff ID: 204	Fire is more effective.	Taking more damage from being on fire	4-9 seconds
	Stunned Internal Buff ID: m200	Completely immobilizes affected enemies.	Paralyzed by love	5-7 seconds
	Wet Internal Buff ID: 103	Player drips water. (visual)	You are dripping water	30 seconds
	Slime Internal Buff ID: 137	Player drips blue goo and gains a blue tint. (visual)	You are slimy and sticky	30 seconds
	Sparkle Slime Internal Buff ID: 320	Player drips pink goo and sparkles. (visual)	You are slimy and sparkly	30 seconds
	Shadowflame Internal Buff ID: 153	Deals 15 damage per second to the target.	Losing life	5-8 seconds
	Betsy's Curse Internal Buff ID: 203	Reduces defense by 40.	Defense is lowered	5 seconds
	Penetrated Internal Buff ID: 169	Causes affected enemies lasting damage for up to 15 seconds.	Bleeding Out	15 seconds
	Daybroken Internal Buff ID: 189	Causes affected enemies lasting damage for up to 15 seconds.	Incinerated by solar rays Incenerated by solar rays [sic]	15 seconds
	Celled Internal Buff ID: 183	Causes affected enemies lasting damage.	being eaten by cells	6-9 seconds
	Dryad's Bane Internal Buff ID: 186	Causes affected enemies lasting damage.	The power of nature compells you	While in Dryad's leaf shield.

Unobtainable debuffs[]

Icon	Name	Effect	Tooltip	Notes
	Dazed Internal Buff ID: 160	Causes the player to move at one third horizontal movement speed and reduces jump height.	Movement is greatly slowed	Unobtainable during normal gameplay
	Sugar Rush Internal Buff ID: 192	Increases movement and mining speed by 20%	20% increased movement and mining speed	Unobtainable on  tModLoader 1.3-Legacy version.

Notes[]

• Players with the Darkness debuff will keep their eyes shut as a cosmetic indicator.
• The duration of the following debuffs, if inflicted on players, is increased by 100% in Expert Mode (i.e. doubled) and by 150% in Master Mode:^[1]

• Furthermore, players in Expert worlds are inflicted with the Chilled debuff when they enter water in a Snow biome. The Chilled debuff lasts for as long as the player is in the water and lasts for 5 seconds after getting out.

• The maximum possible damage per second that can be inflicted on an enemy with damaging debuffs is 1331. This can be achieved by consuming a Flask of Cursed Flames, switching between wearing Frost armor and Huntress armor/Red Riding armor and a Magma Stone, and using the Daybreak, Bone Javelin, Shadowflame Knife, Venom Staff, while having a Imp Staff, a Hornet Staff, a Stardust Cell Staff minion , and a Explosive Trap sentry summons active, against a target that has been Oiled (due to the explosive trap) and within the range of Dryad's aura in a world with all bosses defeated.
• The following weapons inflict debuffs on enemies:

Weapon	Debuff
Venom Staff Internal Item ID: 2188	Acid Venom
Betsy's Wrath Internal Item ID: 3870	Betsy's Curse
Tizona Internal Item ID: 5010	Bleeding
Bee Keeper Internal Item ID: 1123	Confused
Dao of Pow Internal Item ID: 389	Confused
Clinger Staff Internal Item ID: 3014	Cursed Inferno
Cursed Flames Internal Item ID: 519	Cursed Inferno
Daybreak Internal Item ID: 3543	Daybroken
Solar Eruption Internal Item ID: 3473	Daybroken
Amarok Internal Item ID: 3289	Frostbite
Cool Whip Internal Item ID: 4911	Frostbite
Elf Melter Internal Item ID: 1910	Frostbite
Elf Melter Internal Item ID: 1910	Frostbite
Flower of Frost Internal Item ID: 1264	Frostbite
Frost Staff Internal Item ID: 726	frostbite
Frostbrand Internal Item ID: 676	frostbite
Staff of the Frost Hydra Internal Item ID: 1572	Frostbite
Amarok Internal Item ID: 3289	Frostburn
Flower of Frost Internal Item ID: 1264	Frostburn
Ice Boomerang Internal Item ID: 670	Frostburn
Wand of Frosting Internal Item ID: 5147	Frostburn
Brand of the Inferno Internal Item ID: 3823	Hellfire
Firecracker Internal Item ID: 4912	Hellfire
Flameburst Cane Internal Item ID: 3819	Hellfire
Flamethrower Internal Item ID: 506	Hellfire
Hel-Fire Internal Item ID: 3290	Hellfire
Inferno Fork Internal Item ID: 1445	Hellfire
Phantom Phoenix Internal Item ID: 3854	Hellfire
Waffle's Iron Internal Item ID: 5382	Hellfire
Bladetongue Internal Item ID: 3211	Ichor
Golden Shower Internal Item ID: 1336	Ichor
Cascade Internal Item ID: 3282	On Fire!
Elf Melter Internal Item ID: 1910	On Fire!
Flamarang Internal Item ID: 119	On Fire!
Flameburst Rod Internal Item ID: 3818	On Fire!
Flameburst Staff Internal Item ID: 3820	On Fire!
Flamelash Internal Item ID: 218	On Fire!
Flamethrower Internal Item ID: 506	On Fire!
Flaming Mace Internal Item ID: 5012	On Fire!
Flower of Fire Internal Item ID: 112	On Fire!
Molotov Cocktail Internal Item ID: 2590	On Fire!
Sunfury Internal Item ID: 220	On Fire!
Volcano Internal Item ID: 121	On Fire!
Wand of Sparking Internal Item ID: 3069	On Fire!
Bone Javelin Internal Item ID: 3378	Penetrated
Blade of Grass Internal Item ID: 190	Poisoned
Poison Staff Internal Item ID: 1308	Poisoned
Poisoned Knife Internal Item ID: 287	Poisoned
Snapthorn Internal Item ID: 4913	Poisoned
Thorn Chakram Internal Item ID: 191	Poisoned
Tonbogiri Internal Item ID: 5011	Poisoned
Toxikarp Internal Item ID: 3210	Poisoned
Dark Lance Internal Item ID: 274	Shadowflame
Shadowflame Bow Internal Item ID: 3052	Shadowflame
Shadowflame Hex Doll Internal Item ID: 3053	Shadowflame
Shadowflame Knife Internal Item ID: 3054	Shadowflame

See also[]

• Buffs

History[]

 PC version

• Desktop 1.4.1: Hellfire and Frostbite introduced.

• Desktop 1.3.4: Betsy's Curse, Creative Shock, Withered Weapon, and Withered Armor introduced.

• Desktop 1.3.3: Mighty Wind introduced.

• Desktop 1.3.0.5: Fixed bug that caused Distorted to freeze players instead of changing their movement pattern.

• Desktop 1.3.0.1: Stoned, Shadowflame, Distorted, and Feral Bite introduced.

• Desktop 1.2.3.1: Mana Sickness introduced.

• Desktop 1.2.1.2:
  • Added Chaos State debuff.
  • Fixed a bug that was causing enemies to only show one debuff on multiplayer.
  • Enemies that transform now correctly keep their debuffs.

• Desktop 1.2.1.1: Water Candle introduced.

• Desktop 1.2: Burning, Blackout, Chilled, Frozen, Venom, Frostburn, Ichor Debuff and Suffocation debuffs introduced.

• Desktop 1.1: Bleeding, Broken Armor, Confused, Cursed Inferno, Horrified, Silenced, Slow, The Tongue, and Weak debuffs introduced.

• Desktop 1.0.6: Introduced.

 Console version

• Console 1.0.711.6: Introduced with changes up to Desktop 1.3.0.1.

• Console-Release: Introduced.  

 Mobile version

• Mobile 1.3.0.7: Damaging debuffs no longer deal percentage-based damage.

• Mobile-Release: Introduced.

Nintendo 3DS version

• 3DS-Release: Introduced.

References[]