Discharges swarms of infested spores

Swarm Mutalist MOAs are Infested Corpus MOA that launch swarms of infested spores which hinder targets by diminishing visibility and dealing minor damage over time, while granting armor to light infested units.

Farming Locations[]

These are based on opinions and may not be 100% true. These should be viewed as advice for finding the enemies until better facts are proven.

Target Planet Name Type Level Tile Set
IconInfestedB.svg Earth Tikal Excavation (Dark Sector) 6 - 16 Grineer Forest
IconInfestedB.svg Europa Cholistan Excavation (Dark Sector) 23 - 33 Corpus Ice Planet
IconInfestedB.svg Eris Isos Capture 32 - 36 Infested Ship
IconInfestedB.svg Eris Brugia Rescue 32 - 36 Infested Ship


  • Launches a volley of three projectiles that explode into a swarm cloud that sticks to players and enemies alike. This cloud dims player vision and reduces damage dealt, along with dealing damage over time with a chance to proc.
    • Swarms can spread from and to other players and AI units when they come into contact with a swarmed target.
    • Swarms stack, meaning multiple clouds can blur the player's vision to almost no visibility.
    • Swarms provide a large Ferrite Armor buff to allied Infested that carry them.
    • The armor boost can be added to all non-heavy Infested enemies, but not other Swarm Mutalist MOAs.
    • The base armor boost is 700. However, just as with other armored units, the armor bonus increases with level according to the same formula: Armor = Base Armor × (1 + ((Current Level − Base Level)1.75 ÷ 200))
  • Can leap away to put distance between themselves and their enemies.
  • As with Tar-Mutalist MOAs, they can perform a ground stomp similar to Shockwave MOA, stunning and knocking back players touched by the shockwave.
  • Swarm clouds attached to players can be escaped from by rolling or performing melee attacks.
  • Shooting its "tail" will deal a significant amount of damage.
  • Has a faster movement speed than other infested units and can leap up in the air when the player aims their weapon at them to avoid damage.


  • The Swarm Mutalist MOA was first introduced in Devstream 35, alongside its Tar counterpart. It was initially referred to as the Nanite MOA.
    • Curiously the Nanite MOA moniker was referring to the design that would later be used for the Tar-Mutalist MOA and vice versa.
  • Swarm Mutalist MOA was introduced in the Operation: Mutalist Incursions event in Update 15.5 (2014-11-27).
  • For a very long time after their introduction, swarms produced by these enemies while under MindControl130xDark.png Mind Control or in Shadow form, would damage and blind players.
  • Ancients, Boilers, Brood Mothers, and Swarm Mutalist MOAs cannot benefit from the swarm's armor bonus.
  • The 700 armor granted by the swarms is the second highest in the game, after the Zeplen. It can easily scale to absurd damage reduction at high levels.


  • When choosing what damage type to best use against the Infested, the Swarm Mutalist MOA makes Corrosive damage recommended, as it deals 75% more damage to ferrite armor, with the proc reducing armor, and to the Damage/Fossilized health type, which is shared by the Swarm and Tar Mutalist MOA as well as other dangerous 'heavy' Infested.
  • If players are looking to perform Synthesis, Tikal on Earth is a good mission choice for the Scans.


  • Swarms produced by the MOA will still affect players even when under MindControl130xDark.png Mind Control or when produced by Shadows.
  • Swarm-clouds, that managed to latch on players, are recognized as a separate enemy-entity allowing players to perform Enemy Vaulting indefinitely within their duration.
  • If a swarm cloud is prematurely destroyed, the moment after it latches on a player, it can darken the player's view permanently until another swarm manages to latch on the player.


Patch History[]

Hotfix 24.5.6 (2019-03-26)

  • Fixed Swarm Mutalist spore clouds blocking bullets.

Update 24.0 (2018-11-08)

  • Fixed Infested spore swarms spawned by Swarm Mutalist MOAs applying buffs to non-Infested agents (e.g. the Arbitration Drone).

Update 23.10 (2018-10-12)

  • Fixed Nezha’s Blazing Chakram flight path getting blocked by Swarm Mutalist MOA’s spores.

Update 21.0 (2017-06-29)

  • Possible fix for a crash caused by the Swarm Mutalist MOA’s projectiles.

Hotfix 19.12.2 (2017-03-06)

  • Changed formatting of ‘MUTALIST’ names to avoid using a dash.

Hotfix 15.5.7 (2014-12-03)

  • Infested Tar Mutalist MOA, Swarm Mutalist MOA, Boiler and Brood Mother have all been added to regular Infested missions throughout the star chart!

Hotfix 15.5.6 (2014-12-02)

  • Swarm Mutalist MOA’s nanite cloud visual effects will now only become thicker when attaching to players, not enemies as well.

Update 15.5 (2014-11-27)

  • Introduced.

See also[]