In this guide, we’ll take you step-by-step through defeating the Exploiter Orb in Warframe. This boss fight drops the component blueprints for Hildryn, and while it’s a bit of a process to access and complete, it’s very doable solo with the right preparation — though co-op is ideal.

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Preparation and Requirements

Before we dive into the fight, here’s what you’ll need:

• Completed Profit-Taker Phase: You must have completed the Profit-Taker heists and progressed far enough with Little Duck.
• Diluted Thermia: One is required to initiate the Exploiter Orb fight. You get these from the recurring Thermia Fractures event on Orb Vallis.
• Strong Loadout: Bring a good Warframe (e.g., Wisp for mobility and healing), a solid AOE weapon like Epitaphfor the canister phases, and ideally, a Necramech and an On-Call Crew Member to assist you.
• Archwing Launcher: Traversing Orb Vallis quickly is essential, especially if solo.

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Accessing the Fight

1. Head to Fortuna (Venus) and fast travel to Little Duck.
2. Choose the Exploiter Orb node (not associated with Nox phases).
3. Exit to Orb Vallis and head east to the marked cave entrance. Place a waypoint or use Archwing to reach it fast.

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Phase 1 – Underground Cave Battle

Inside the cave, head to the back and use the Thermia at the terminal to summon the Orb.

Steps:

• Shoot the rock formations above the Orb to drop it down.
• Hit its ventilation ports — two rear, one on top — with Thermia canisters.
• Collect canisters from the terminal and toss them at exposed vents.
• Use your Operator or Necramech to avoid Slash procs and minimize damage.
• When all vents are broken, the Orb will retreat topside.

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Phase 2 – Surface Battle in Orb Vallis

Now out in the open world, the Exploiter Orb re-emerges.

Steps:

• Eliminate Thermia Canister drones (the small blue-top spiders).
• Collect dropped canisters, load them up at the coolant rigs, then throw them at the Orb.
• Use an AOE weapon like the Epitaph to detonate canisters mid-air for faster overheating.
• Each overheat phase lets you damage a weak spot: first the left, then right side, then the faceplate.

Pro tip: Collect 5–6 canisters before each DPS phase so you don’t run short mid-battle.

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Final Blow and Extraction

Once the final vent is destroyed:

• The Orb will enter a death animation.
• Quickly collect any rewards at the base of the spider.
• Fly away using Archwing — the Orb explodes shortly after.

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Rewards

• Hildryn Parts (Systems, Chassis, Neuroptics)
• Toroids and Various Resources
• Hildryn’s main blueprint is purchased from Little Duck (after enough rank progression).

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Tips for Success

• Bring healing (Wisp’s motes or Squad restores).
• Use AOE weapons to detonate Thermia.
• Necramechs are invaluable for defense and offense.
• Solo is possible, but a squad can help with spider drone cleanup and thermia tosses.