A parasitic growth often found growing in mineral deposits.

—In-Game Description

Pustrels are a common Resource dropped by Eximus units found in the Infested Ship tileset, primarily Eris. They can also be found in Empyrean missions as a possible loot drop from destroying Grineer ships, killing Grineer ground units, or opening storage containers found on Crewships. They are used in constructing, upgrading, and maintaining the Railjack.

Blueprints Requiring Pustrels[edit | edit source]

Click to view the Blueprints requiring Pustrels
Blueprints Type Quantity
(Research)
Apoc Mk I Ship Turret 1,500
Carcinnox Mk I Ship Turret 1,500
Cryophon Mk I Ship Turret 1,500
Galvarc Mk I Ship Ordnance 1,500
Lavan Apoc Mk I Ship Turret 2,400
Lavan Carcinnox Mk I Ship Turret 2,400
Lavan Cryophon Mk I Ship Turret 2,400
Lavan Engines Mk I Ship Component 2,400
Lavan Photor Mk I Ship Turret 2,400
Lavan Pulsar Mk I Ship Turret 2,400
Lavan Reactor Mk I Ship Component 2,400
Lavan Shield Array Mk I Ship Component 2,400
Milati Mk I Ship Ordnance 1,500
Photor Mk I Ship Turret 1,500
Pulsar Mk I Ship Turret 1,500
Railjack Starboard Nacelle Component 30
Sigma Engines Mk I Ship Component 1,500
Sigma Reactor Mk I Ship Component 1,500
Sigma Shield Array Mk I Ship Component 1,500
Squad Health Restore (Large) x100 Gear (6,750)
Tycho Seeker Mk I Ship Ordnance 1,500
Vidar Apoc Mk I Ship Turret 2,400
Vidar Carcinnox Mk I Ship Turret 2,400
Vidar Cryophon Mk I Ship Turret 2,400
Vidar Engines Mk I Ship Component 2,400
Vidar Photor Mk I Ship Turret 2,400
Vidar Pulsar Mk I Ship Turret 2,400
Vidar Reactor Mk I Ship Component 2,400
Vidar Shield Array Mk I Ship Component 2,400
Zetki Apoc Mk I Ship Turret 3,000
Zetki Apoc Mk III Ship Turret 8,125
Zetki Carcinnox Mk I Ship Turret 3,000
Zetki Carcinnox Mk III Ship Turret 8,125
Zetki Cryophon Mk I Ship Turret 3,000
Zetki Cryophon Mk III Ship Turret 8,125
Zetki Engines Mk I Ship Component 3,000
Zetki Engines Mk III Ship Component 8,125
Zetki Photor Mk I Ship Turret 3,000
Zetki Photor Mk III Ship Turret 8,125
Zetki Pulsar Mk I Ship Turret 3,000
Zetki Pulsar Mk III Ship Turret 8,125
Zetki Reactor Mk I Ship Component 3,000
Zetki Reactor Mk III Ship Component 8,125
Zetki Shield Array Mk I Ship Component 3,000
Zetki Shield Array Mk III Ship Component 8,125
Total 144,730 (+6,750)
Research Ghost Clan x1   Shadow Clan x3   Storm Clan x10   Mountain Clan x30   Moon Clan x100

Last updated: Hotfix 29.9.1

Gathering Tips[edit | edit source]

  • Pustrels are significantly more common in Empyrean than in the Infested Ship tileset.
  • Kuva Lich and Arbitrations missions can spawn Eximus units more often as a result of their higher level, allowing for easier farming.
  • Any Endless mission types on Eris is a great source for Eximus units, with higher waves spawning more Eximus units.
  • Pustrels may be dropped as an end mission reward of Railjack missions at amounts of 1200, 1500 or 2700 depending on luck. (Empyrean Rewards)

Notes[edit | edit source]

  • When running Empyrean missions to farm Pustrels, all Pustrels, Carbides, Cubic Diodes, and Copernics are stored in the Railjack's Resource Forge in order to manufacture consumable items. The Forge holds a default of 200 of each resource, after which additional gathering is automatically distributed to the squad, until the mission is completed. Pressing the "Refine" button from one of the Forge station will distribute the resources to the entire squad.

Trivia[edit | edit source]

  • Prior to Update 28.0, Pustrels could be found through Mining on the Plains of Eidolon. Despite this, they would not drop from any Tusk Thumper.
  • With their design clashing with the more natural look of ores and gems, Pustrels are most likely the result of the Infested boil that crashed into the Plains in Operation: Plague Star.
  • Update 27.0 introduced the ability to get Pustrels (and some other resources) through Empyrean missions in the form of loot drops and successful mission rewards.

Media[edit | edit source]

Patch History[edit | edit source]

Update 29.10

  • Removed from drop tables.

We wanted to reduce the number of Resources we introduced in our original Railjack launch. They'll remain in your Inventory as we’ll be looking at possibly reintroducing them at a later date. All Blueprints that required these items have been updated to reflect viable Resources, and respective drops have been swapped to Ticor Plate where appropriate. These Resources have also been removed from Helminths Bile Feeding menu. If you spot any mentions of these Resources that we might have missed please let us know!

For Tenno who have partially contributed these Resources to Wreckage, the percentage of your contribution will be honoured for the Resource that replaces it. Ex: If you contributed 60% of the needed Copernics for a Carcinnox, that 60% contribution will be carried over when the Blueprints are updated.

Hotfix 28.0.5

  • Fixed Pustrels description to their updated drop locations.

Update 28.0

  • Removed Pustrels from Mining Nodes in the Plains of Eidolon and added to Eximus enemies in the Infested Ship tileset.

Update 26.1

  • Introduced.
Community content is available under CC-BY-SA unless otherwise noted.