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Combined from DmgColdSmall64.png Cold and DmgToxinSmall64.png Toxin damage. Most effective against Grineer clones. Viral status increases health damage taken by up to 325%.
—In-game Description

DmgViralSmall64.png Viral Damage is one of the six secondary elemental damage types, composed of DmgColdSmall64.png Cold and DmgToxinSmall64.png Toxin elements. It deals increased damage against IconGrineerOn.png Grineer and IconCorpusOn.png Corpus bodies, but reduced damage to most light Infestation w.svg Infested foes, with some heavy units being outright immune.

Status Effect[]


The status effect of DmgViralSmall64.png Viral damage is Virus. It amplifies damage to the health of the afflicted target by 100% for 6 seconds. Subsequent procs add 25% increased damage to health up to 325% in total after 10 stacks, with each proc having their own duration. This effect will work even when the health is protected by armor ("yellow health"). Only the shield is not affected.

Calculating resultant damage if at least one Viral proc is on target. Damage Vulnerability provided by Viral procs are multiplicative with other damage bonuses.

For status effects that apply damage over time (e.g. DmgSlashSmall64.png Slash, DmgToxinSmall64.png Toxin, DmgFireSmall64.png Heat, DmgGasSmall64.png Gas), the damage dealt by the proc throughout its duration is calculated based on whether or not a DmgViralSmall64.png Viral proc is active when the DoT tick deals damage. For example, a weapon with 100 damage that applies a DmgSlashSmall64.png Slash proc, if the target has 1 DmgViralSmall64.png Viral proc, will deal 200 damage, then 70 damage per second from DmgSlashSmall64.png Slash's Bleed until the DmgViralSmall64.png Viral effect ends, when it will go down to 35 per second. If the target does not have a DmgViralSmall64.png Viral proc initially, the Bleed damage will be 35 per second until the target takes a DmgViralSmall64.png Viral proc, which will then multiply the DoT accordingly to 70 per second. This means that the multiplier is not applied twice to DoTs, unlike faction damage multipliers.

Enemies afflicted by a DmgViralSmall64.png Viral proc are coated in a flowing, leaking miasma of the Energy color of the weapon that inflicted it.


DmgViralSmall64.png Viral does not have a Railjack space counterpart and is thus not able to proc any status effect nor is it included in calculations for status proc weighting.

Type Effectiveness[]

IconGrineerOn.pngGrineer Health DmgViralSmall64.png Viral Modifier IconCorpusOn.pngCorpus Health DmgViralSmall64.png Viral Modifier Infestation w.svgInfested Health DmgViralSmall64.png Viral Modifier
Cloned Flesh +75% Flesh +50% Infested -50%
Ferrite Armor Shield Infested Flesh
Alloy Armor Proto Shield Fossilized
Machinery -25% Robotic Infested Sinew
“It's taking longer than I calculated.”
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Viral Sources[]

Main article: Category:Viral Damage


Main article: Category:Viral Damage Weapons
Weapons with Viral damage
Name Slot Class Attack Name DmgViralSmall64.png Viral Majority
Hema.png Hema Primary Rifle Normal Attack 47 100.00% DmgViralSmall64.png 
Keratinos.png Keratinos Melee Claws Normal Attack 33 35.66% DmgSlashSmall64.png 
Kompressa.png Kompressa Secondary Pistol Explosion 42 100.00% DmgViralSmall64.png 
Pathocyst.png Pathocyst Melee Glaive Charged Throw 193 33.51% DmgViralSmall64.png 
Phage.png Phage Primary Shotgun Normal Attack 5 100.00% DmgViralSmall64.png 
PlagueKeewar.png Plague Keewar Melee Zaw Scythe / Staff Plague Keewar Strike (Gilded) 70 29.74% DmgSlashSmall64.png 
PlagueKripath.png Plague Kripath Melee Zaw Rapier / Polearm Plague Kripath Strike (Gilded) 64 32.86% DmgPunctureSmall64.png 
ProboscisCernos.png Proboscis Cernos Primary Bow Charged Shot Explosion 1003 100.00% DmgViralSmall64.png 
Pulmonars.png Pulmonars Melee Nunchaku Normal Attack 97 66.55% DmgImpactSmall64.png 
Pupacyst.png Pupacyst Melee Polearm Normal Attack 145 51.06% DmgViralSmall64.png 


MiasmaModU15.jpeg SarynMiasma.png
Releases a poisonous miasma that deals DmgViralSmall64.png Viral damage to enemies in range. Foes afflicted by spores are more susceptible to the mist.
Strength:110 / 125 / 135 / 150 (DmgViralSmall64.png Viral damage)
Duration:6 s
Range:10 / 12 / 16 / 20 m
Misc:100% (DmgViralSmall64.png Viral status chance)
4.0x (Spores damage multiplier)



  • The status effect of Viral damage can mitigate the reduction of damage to Infested foes after a proc is applied, making it effective especially in combination with DmgFireSmall64.png Heat, DmgElectricitySmall64.png Electricity, or DmgGasSmall64.png Gas damage over time effects.


Patch History[]

Update 31.6 (2022-06-09)

  • Fixed Overguard counting as Health and taking damage from Viral Status Effect.
    • Overguard situates itself in a new category of “protection”. It differs from Shields, Armor, and Health. That said, Viral Status Effects affecting Overguard was unintentional and has been changed to not only fit the original design for Viral damage, but also Overguard.
      • We originally mentioned in the Eximus Reborn Dev Workshop that the only Status Effect that would work on Eximus while Overguard is present is Cold Status Effects (up to 4 stacks!).

Update 27.2 (2020-03-05)

  • New Status Effect entirely: enhanced Damage! First Viral Status Effect deals 100% additional Health damage, subsequent Viral Status add +25% for a total of 325% (capped).
    • Note: Before Viral would halve a target’s health pool and simply refresh the duration. Now it deals 2x Damage to Health, and can scale up to 4.5x Damage on repeat Status Effects.

See Also[]