Acrid

Acrid
Acrid is a melee-range hybrid who uses powerful poisons to melt tanky enemies.
Health	160 (+48 per level)
Health Regen	3.75/s (+0.75 per level) 2.5/s (+0.5 per level) 1.5/s (+0.3 per level)
Damage	15 (+3 per level)
Speed	7 m/s
Armor	20 ( 90)
Unlock	...To Be Left Alone
Umbra Title
Test Subject
Ending Phrase
Escaped : ..and so it left, with delusions of freedom. Vanished : ..and so it vanished, taken for the final time.

Acrid is a playable character in Risk of Rain 2.

An imposingly large, poison-spewing ex-prisoner, Acrid fights with a potent array of damage-over-time effects and a self-sustaining melee ability. In addition to sporting the highest base damage stat of any Survivor barring the HereticHereticThe Heretic is a powerful character who can only be accessed through extraordinary means.
Class: Ranged
HP: 440 (+132 per level)
Damage: 18 (+3.6 per level)
Armor: 0
Umbra: Unorthodoxy Risen, Acrid’s mix of long-range and crowd control allow for excellent damage potential.

Acrid's unique ability to inflict PoisonPoison (Debuff)
Damage over time.Deals 1% of the victim's maximum damage per second, or an amount per second equivalent to Acrid's damage stat, whichever is greater. Lasts 10 seconds. or BlightBlight (Debuff)
Damage over time.Deals 20% base damage stat per tick, or 60% damage per second for 5 seconds. status effects makes it an incredibly lethal choice when stacking items that inflict additional debuffs.

Completing the ...To Be Left Alone challenge will unlock Acrid as a playable survivor.

Skills

Misc

Poison
	Type	Passive
	Description	Poisonous [ Poisonous ] Deal damage equal to 10% of their maximum health over 10s. Poison cannot kill enemies. attacks apply a powerful damage-over-time.
Notes
Poison ticks 3 times per second for 10 seconds (plus 1 extra tick when it expires). Poison deals 1% of the victim's maximum health per second or 100% base damage per second (whichever is greater). Poison damage is capped at 5000% base damage per second. Poison damage is affected by armor and has the nonlethal tag.

Blight
	Type	Passive
	Description	Attacks that apply Poison apply stacking Blight instead, dealing 60% damage per second.
Notes
Unlocked via the Acrid: Easy Prey Challenge. (As Acrid, land the killing blow on 50 total enemies that have 1 hit point left.) Blight ticks 3 times per second for 5 seconds (plus 1 extra tick when it expires). Blight deals 20% base damage per tick, for 60% damage per second. Each stack of Blight increases the damage of each tick rather than adding more ticks.

Primary

Vicious Wounds
	Type	Primary
	Proc Coefficient	1.0
	Description	Maul an enemy for 200% damage. Every 3rd hit is Regenerative [ Regenerative ] Heal for 5% of your maximum health over 0.5s. and deals 400% damage.

Secondary

Neurotoxin
	Type	Secondary
	Cooldown	2s
	Proc Coefficient	1.0
	Description	Poisonous [ Poisonous ] Deal damage equal to 10% of their maximum health over 10s. Poison cannot kill enemies. . Spit toxic bile for 240% damage.
Notes
Agile [ Agile ] The skill can be used while sprinting. . Can be used during Vicious Wounds without canceling it.

Ravenous Bite
	Type	Secondary
	Cooldown	2s
	Proc Coefficient	1.0
	Description	Poisonous [ Poisonous ] Deal damage equal to 10% of their maximum health over 10s. Poison cannot kill enemies. . Slayer [ Slayer ] The skill deals 2% more damage per 1% of health the target has lost, up to 3x damage. . Regenerative [ Regenerative ] Heal for 5% of your maximum health over 0.5s. . Bite an enemy for 320% damage.
Notes
Unlocked via the Acrid: Bad Medicine Challenge. (As Acrid, land the final blow on a Scavenger.) For every 1% of health the enemy is missing, the damage multiplier is increased by 2%.

Utility

Caustic Leap
	Type	Utility
	Cooldown	6s
	Proc Coefficient	Leap: 1.0 Pool: 0.1
	Description	Poisonous [ Poisonous ] Deal damage equal to 10% of their maximum health over 10s. Poison cannot kill enemies. . Stunning [ Stunning ] Interrupts enemies and briefly stuns them. . Leap in the air, dealing 320% damage. Leave acid that deals 25% damage.
Notes
Has 2 base charges. The acid pool ticks 10 times per second, but is only able to damage the same target twice per second. It lasts for 10 seconds, giving it a total of 500% damage per target over its lifetime.

Frenzied Leap
	Type	Utility
	Cooldown	10s
	Proc Coefficient	1.0
	Description	Stunning [ Stunning ] Interrupts enemies and briefly stuns them. . Leap in the air, dealing 550% damage. Reduce the cooldown by 2s for every enemy hit.
Notes
Unlocked via the Acrid: Pandemic Challenge. (As Acrid, inflict Poison 1000 total times.) Has 2 base charges.

Special

Epidemic
	Type	Special
	Cooldown	10s
	Proc Coefficient	1.0
	Description	Poisonous [ Poisonous ] Deal damage equal to 10% of their maximum health over 10s. Poison cannot kill enemies. . Release a deadly disease that deals 100% damage. The disease spreads to up to 20 targets.
Notes
Agile [ Agile ] The skill can be used while sprinting. . When Epidemic hits anything (enemy or geometry), it spreads to up to 2 nearby monsters within 30m, dealing 100% base damage and poisoning them. This process repeats up to 20 times, or until there are no enemies nearby that have not yet been affected by Epidemic.

Behaviors

For an explanation of how these behaviors are implemented read about Enemy AI. This section only applies when the character is controlled by AI.

1. Use utility (leap away from enemy): Acrid must be within 5m of the target and aiming at it. Acrid will sprint and reselect a target after this.
2. Use primary and strafe: Acrid must be 3m from the target. This behavior is active for 0.5 and a new target will be selected after this.
3. Use utility (leap towards enemy): Acrid must be within 10-20m from the target, have line of sight, and aiming at it. Acrid will sprint and reselect a target after this.
4. Use primary and chase: Acrid must be within 6m from the target. This behavior is active for 0.5 seconds and a new target will be selected after this.
5. Use special: Acrid must be within 30m from the target, have line of sight, and aiming at it.
6. Use secondary: Acrid must be within 30m from the target, have line of sight, and aiming at it. This behavior does not differentiate between the Spit and the Bite and as such the Bite will be needlessly used even if the target is not within melee range.
7. Chase: no requirements.

Tips

• Choosing between Poison and Blight is largely a personal preference.
  • Since Poison cannot stack, it favors a dodgier, fire-and-forget playstyle where the player poisons a group of enemies, leaves them to take damage, and finds some new enemies to poison in the meantime.
  • On the other hand, Blight favors an aggressive playstyle and rewards using more skills, as each Poisonous
    [ Poisonous ]

    Deal damage equal to 10% of their maximum health over 10s. Poison cannot kill enemies.
    skill effectively deals 320% more base damage.
    • The main drawback to blight is that it's duration is not reset for each stack unlike bleed for example. This places a soft cap on blight's damage potential without the use of cooldown reduction items such as Purity, Lysate cells or Alien head for example. This is the biggest drawback to blight.
• The damage from both Poison and Blight can be increased with Focus CrystalFocus Crystal
  Deal bonus damage to nearby enemies.
  Increase damage to enemies within 13m by 20% (+20% per stack)., Armor-Piercing RoundsArmor-Piercing Rounds
  Deal extra damage to bosses.
  Deal an additional 20% damage (+20% per stack) to bosses., Survivors of the Void - DLC Content
  Delicate Watch is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. Delicate WatchSurvivors of the Void - DLC Content
  This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Delicate Watch
  Deal bonus damage. Breaks at low health.
  Increase damage by 20% (+20% per stack). Taking damage to below 25% health breaks this item., Death MarkDeath Mark
  Enemies with 4 or more debuffs are marked for death, taking bonus damage.
  Enemies with 4 or more debuffs are marked for death, increasing damage taken by 50% from all sources for 7 (+7 per stack) seconds., Shattering JusticeShattering Justice
  Reduce the armor of enemies after repeatedly striking them.
  After hitting an enemy 5 times, reduce their armor by 60 for 8 (+8 per stack) seconds., Survivors of the Void - DLC Content
  Symbiotic Scorpion is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. Symbiotic ScorpionSurvivors of the Void - DLC Content
  This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Symbiotic Scorpion
  Permanently reduce armor on hit.
  100% chance on hit to reduce armor by 2 (+2 per stack) permanently., Spinel Tonic60sSpinel Tonic
  Gain a massive boost to ALL stats. Chance to gain an affliction that reduces ALL stats.
  Drink the Tonic, gaining a boost for 20 seconds. Increases damage by +100%. Increases attack speed by +70%. Increases armor by +20. Increases maximum health by +50%. Increases passive health regeneration by +300%. Increases movespeed by +30%.
  
  When the Tonic wears off, you have a 20% chance to gain a Tonic Affliction, reducing all of your stats by -5% (-5% per stack). and Shaped GlassShaped Glass
  Double your damage... BUT halve your health.
  Increase base damage by 100% (+100% per stack). Reduce maximum health by 50% (+50% per stack)..
  • Shaped GlassShaped Glass
    Double your damage... BUT halve your health.
    Increase base damage by 100% (+100% per stack). Reduce maximum health by 50% (+50% per stack). and Spinel Tonic60sSpinel Tonic
    Gain a massive boost to ALL stats. Chance to gain an affliction that reduces ALL stats.
    Drink the Tonic, gaining a boost for 20 seconds. Increases damage by +100%. Increases attack speed by +70%. Increases armor by +20. Increases maximum health by +50%. Increases passive health regeneration by +300%. Increases movespeed by +30%.
    
    When the Tonic wears off, you have a 20% chance to gain a Tonic Affliction, reducing all of your stats by -5% (-5% per stack). directly affect base damage and therefore will not increase the maximum health damage of Poison, instead only increasing its minimum base damage. Other damage-boosting items will however, as they are applied after Poison has already calculated its own damage.
• Although the percentage-based damage of Poison may seem appealing on paper, in practice it will only reach its maximum damage against the very largest of enemies. Experiment with both Poison and Blight to determine which aligns better with preferred playstyles.
  • It is straightforward to determine when Poison is dealing the least possible damage by observing the damage dealt by each tick. If the damage per tick is Acrid's level plus 4, then the victim's maximum HP is so low that Poison is only dealing the minimum 100% base damage per second (lower than 2 stacks of Blight). This observation can be muddled by the aforementioned damage-boosting items, however.
• Since the RegenerativeRegenerative (Buff)
  Gain additional health regeneration.Gain health regeneration equal to 5% of your maximum health.
  (stackable) buff from Vicious Wounds and Ravenous Bite is considered health regeneration, it will be massively amplified by Spinel Tonic60sSpinel Tonic
  Gain a massive boost to ALL stats. Chance to gain an affliction that reduces ALL stats.
  Drink the Tonic, gaining a boost for 20 seconds. Increases damage by +100%. Increases attack speed by +70%. Increases armor by +20. Increases maximum health by +50%. Increases passive health regeneration by +300%. Increases movespeed by +30%.
  
  When the Tonic wears off, you have a 20% chance to gain a Tonic Affliction, reducing all of your stats by -5% (-5% per stack).. However, this also means that it will not interact with items like AegisAegis
  Healing past full grants you a temporary barrier.
  Healing past full grants you a temporary barrier for 50% (+50% per stack) of the amount you healed., N'kuhana's OpinionN'kuhana's Opinion
  Fire haunting skulls when healed.
  Store 100% (+100% per stack) of healing as Soul Energy. After your Soul Energy reaches 10% of your maximum health, fire a skull that deals 250% of your Soul Energy as damage. or CorpsebloomCorpsebloom
  Double your healing... BUT it's applied over time.
  Heal +100% (+100% per stack) more. All healing is applied over time. Can heal for a maximum of 10% (-50% per stack) of your health per second..
  • Despite being regeneration, it is not affected by the regeneration modifiers from Drizzle or Monsoon, and is not removed when on fireBurn (Debuff)
    Damage over time, disable health regeneration.Applies a percent of damage over time, and disables health regeneration.
    (stackable).
• Getting a PurityPurity
  Reduce your skill cooldowns by 2 seconds. You are unlucky.
  All skill cooldowns are reduced by 2 (+1 per stack) seconds. All random effects are rolled +1 (+1 per stack) times for an unfavorable outcome. reduces the cooldown of Neurotoxin and Ravenous Bite to the minimum of 0.5 seconds. This enables Acrid to rapidly fire off ranged attacks, or to repeatedly bite enemies and regenerate massive amounts of health.
• Vicious Wounds' attack animation can be cancelled and reset by initiating a sprint. This allows Acrid to attack extremely quickly with no items. In Development Thoughts #11 it was noted this behavior will likely get removed.
  • This does not reset Acrid's 3-hit combo, potentially allowing it to regenerate at a greatly increased rate.
  • This was changed in the Survivors of the Void Update to immediately start the next attack of the primary chain instead of canceling the animation.
• Acrid takes no fall damage while using Caustic Leap or Frenzied Leap.
  • The player can use Caustic Leap or Frenzied Leap after falling off the map to avoid taking fall damage.
• Epidemic gives Acrid great early-game area-of-effect damage. Even late-game, it can be competent at activating on-hit items like the UkuleleUkulele
  ...and his music was electric.
  25% chance to fire chain lightning for 80% TOTAL damage on up to 3 (+2 per stack) targets within 20m (+2m per stack). and AtG Missile Mk. 1AtG Missile Mk. 1
  Chance to fire a missile.
  10% chance to fire a missile that deals 300% (+300% per stack) TOTAL damage. due to its 1.0 proc coefficient and how it quickly spreads through crowds of enemies.
• Intentionally shooting Epidemic at the floor or walls can reliably hit flying monsters such as Lesser WispsLesser Wisp
  HP: 35 (+10 per level)
  Damage: 3.5 (+0.7 per level)
  Class: Ranged
  Speed: 6 m/s
  Armor: 0.
• Acrid does not spawn from an Escape Pod, making Acrid unable to unlock Power Plant in a single-player run.

Lore

Theoretically, the true contents of the cell were just a mess of atoms. The structure of the contents in each cell – living, weapon, whatever - was categorized, sequenced, and then turned to juice and cured into solid gems. An incredibly efficient and lossless format.

And yet when the cell containment broke – and emergency protocols re-sequenced that mess of atoms back into the creature known as Acrid – he already knew. Maybe he was somehow conscious, in his juice-gem state. Maybe they injected him with information. Maybe he was connected to their psionic network. Maybe he just made it up.

But he knew – that the strange crustaceans that scrambled his atoms and imprisoned him here, in a place unknown – were panicking. Something had gone wrong, in a world where variables were not allowed.

Something was leaking.

They may have finally imprisoned something that could not be contained.

Version History

Survivors of the Void Update

• Survivor Changes
  • Vicious WoundsVicious Wounds (Primary)Maul an enemy for 200% damage. Every 3rd hit is Regenerative and deals 400% damage.
    Survivor: Acrid
    • Can no longer animation cancel the first attack by sprinting. Instead, sprinting will immediately start the next attack in the primary chain.

---

PS4 & Xbox One Patch

• Bug Fixes
  • Solved an issue where the Ravenous BiteRavenous Bite (Secondary)Poisonous. Slayer. Regenerative. Bite an enemy for 320% damage.
    Survivor: Acrid healing passive
    [ Regenerative ]

    Heal for 5% of your maximum health over 0.5s.
    would not activate.

---

Anniversary Update

• Major Content
  • Added New Lore Entry: Acrid

---

Early Access Content Update 5

• Gameplay Changes
  • Developer Notes: Acrid has always been a melee-ranged hybrid. We want greater rewards for engaging in melee and completing your M1 combo for players who enjoy a more aggressive playstyle.
    • NEW Buff: Regenerate
      [ Regenerative ]

      Heal for 5% of your maximum health over 0.5s.
      • Regenerate for 10% health over 0.5 seconds.
    • Vicious WoundsVicious Wounds (Primary)Maul an enemy for 200% damage. Every 3rd hit is Regenerative and deals 400% damage.
      Survivor: Acrid
      • Third hit of the combo now grants ‘Regenerate’ buff
    • Ravenous BiteRavenous Bite (Secondary)Poisonous. Slayer. Regenerative. Bite an enemy for 320% damage.
      Survivor: Acrid
      • Now grants ‘Regenerate’ buff
    • Frenzied LeapFrenzied Leap (Utility)Stunning. Leap in the air, dealing 550% damage. Reduce the cooldown by 2s for every enemy hit.
      Survivor: Acrid
      • 🌧Now (properly) stuns
        [ Stunning ]

        Interrupts enemies and briefly stuns them.
• (Undocumented) Updated description for PoisonPoison (Passive)Poisonous attacks apply a powerful damage-over-time.
  Survivor: Acrid, NeurotoxinNeurotoxin (Secondary)Poisonous. Spit toxic bile for 240% damage.
  Survivor: Acrid, Ravenous BiteRavenous Bite (Secondary)Poisonous. Slayer. Regenerative. Bite an enemy for 320% damage.
  Survivor: Acrid, Caustic LeapCaustic Leap (Utility)Poisonous. Stunning. Leap in the air, dealing 320% damage. Leave acid that deals 25% damage.
  Survivor: Acrid, Frenzied LeapFrenzied Leap (Utility)Stunning. Leap in the air, dealing 550% damage. Reduce the cooldown by 2s for every enemy hit.
  Survivor: Acrid, and EpidemicEpidemic (Special)Poisonous. Release a deadly disease that deals 100% damage. The disease spreads to up to 20 targets.
  Survivor: Acrid to include keywords

---

Early Access Artifacts Content Update

• Major Content
  • Added New Skill Variant: Acrid UtilityFrenzied Leap (Utility)Stunning. Leap in the air, dealing 550% damage. Reduce the cooldown by 2s for every enemy hit.
    Survivor: Acrid
    • Leap into the air, dealing 550% damage and stunning enemies on impact. Reduce the cooldown by 2s for every enemy hit.
  • Added New Skill Variant: Acrid PassiveBlight (Passive)Attacks that apply Poison apply stacking Blight instead, dealing 60% damage per second.
    Survivor: Acrid
    • Attacks that apply Poison apply stacking Blight instead, dealing 60% damage per second.
  • Added New Acrid Challenge: Easy PreyBlight (Passive)Attacks that apply Poison apply stacking Blight instead, dealing 60% damage per second.
    Survivor: Acrid
  • Added New Acrid Challenge: Bad MedicineRavenous Bite (Secondary)Poisonous. Slayer. Regenerative. Bite an enemy for 320% damage.
    Survivor: Acrid
• Gameplay Changes
  • Add 2 New Skill Variants
  • Improve Acrid’s poison VFX
  • Caustic LeapCaustic Leap (Utility)Poisonous. Stunning. Leap in the air, dealing 320% damage. Leave acid that deals 25% damage.
    Survivor: Acrid
    • The damage from the acid pool is no longer non-lethal
• Bug Fixes
  • Fix wrong death sound on Acrid

---

Early Access Hidden Realms Content Update

• Major Content
  • Added Survivor: Acrid
    • Acrid is a melee-range hybrid who uses powerful poisons to melt tanky enemies.
  • Added New Skill Variant: Acrid UtilityFrenzied Leap (Utility)Stunning. Leap in the air, dealing 550% damage. Reduce the cooldown by 2s for every enemy hit.
    Survivor: Acrid
    • Leap into the air, dealing 550% damage and stunning enemies on impact. Reduce the cooldown by 2s for every enemy hit.
  • Added New Skin: Acrid Skin
  • Added New Challenge: ...To Be Left AloneAcridAcrid is a melee-range hybrid who uses powerful poisons to melt tanky enemies.
    Class: Melee / Ranged
    HP: 160 (+48 per level)
    Damage: 15 (+3 per level)
    Armor: 20
    Umbra: Test Subject

Gallery

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  Default

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  Albino

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Trivia

• Acrid is the only returning character that is the same creature in both Risk of Rain and Risk of Rain 2.
• The challenge necessary to unlock Acrid, "...To be left alone" is a reference to Acrid's victory screen from the first Risk of Rain, which reads "...And so it left, with a new hunger: to be left alone."
• Acrid is referred to internally as "Croco," and the Regenerative buff is referred to as "CrocoRegen."
• Acrid is commonly known as “Poison Doggo” as an internet meme.
• Instead of starting in an Escape Pod, Acrid starts asleep on the surface of the planet. During its wake up animation, it is actually vulnerable to enemy attack before the player is given control if its spawn location is particularly unlucky.
• Acrid originally fell onto Petrichor V, along with the majority of the UES Contact Light's cargo, locked inside of a crate that landed atop the area known as Sunken Tomb. It can be presumed that void creatures managed to imprison it in the Void Fields between the events of Risk of Rain 1 and 2.
• Although Acrid somewhat resembles a LemurianLemurian
  HP: 80 (+24 per level)
  Damage: 12 (+2.4 per level)
  Class: Ranged / Melee
  Speed: 7 m/s
  Armor: 0, it has been confirmed by developer Hopoo that it is not a Lemurian.
• Epidemic's enemy limit is completely unfeasible to reach under normal gameplay circumstances; since it spreads to 2 enemies at a time, up to 20 times, it can affect a total of 1 + 2^20 = 1048577 enemies. For comparison, the maximum number of monsters that can exist at once is 40.
• The last few lines of Acrid’s Logbook may reference the Void Fiend Escaping the Void, as its considerable power could definitely cause a panic as it was definitely ready for vengeance.
• The way Acrid spawns on the 1st stage may actually be a reference to the way he is Unlocked. By clearing the Void Fields, you set Acrid free, and, since being in a prison, Acrid would have nothing better to do than sleep, so when you set him free, he is teleported to the surface, mid nap, and wakes up
• The word Acrid means "having an irritatingly strong and unpleasant taste or smell".