In Horizon Forbidden West, Rockbreakers are terrifying mole-like machines. Their most difficult fighting mechanic is their ability to burrow underground and emerge right beneath Aloy, causing massive damage on impact. The best way to combat this powerful machine is to remove some of the key body parts that allow it to perform these devastating attacks.

Taking out the Rockbreaker’s Blaze Sac will disable its ability to perform attacks with Fire effects, saving Aloy some extra HP during battle. Players can also target the Mining Claws, which, if destroyed, will disable the Rockbreaker’s ability to burrow underground.

Rockbreaker’s information

Screenshot by Pro Game Guides

Strengths and Weaknesses

Players can attack machines with different kinds of elemental attacks. Elemental attacks in the game include Fire, Shock, Frost, Plasma, Purgewater, and Acid. Rockbreakers will be weak to damage from Shock and Frost attacks. They will also be strong against damage from Fire attacks.

Related: How to defeat Tideripper in Horizon Forbidden West?

Body Parts

There are many different body parts on a Rockbreaker, and each one will drop different loot and deal different amounts of damage to the machine when attacked by players. The body parts on a Rockbreaker are:

  • Body
  • Mining Claw
  • Blaze Sac
  • Resource Canister
  • Exhaust Port


Machines in Horizon Forbidden West will drop different loot items, with many being specific to each kind of machine. Some can be looted from a fallen machine, while others will need to be removed (shot off with an arrow or removes with a hit from the spear) while the machine is still alive. The Rockbreaker will drop a long list of loot items:

  • Volatile Sludge (Very Rare) – Dropped from Body and Blaze Sac
  • Blaze (Common) – Dropped from Body and Blaze Sac
  • Metal Shards (Common) – Dropped from Body
  • Rockbreaker Circulator* (Uncommon) – Dropped from Body
  • Large Machine Core (Rare) – Dropped from Body and Resource Canister
  • Rockbreaker Primary Nerve* (Rare) – Dropped from Body and Resource Canister
  • Machine Muscle (Uncommon) – Dropped from Body
  • Braided Wire (Common) – Dropped from Body and Resource Canister
  • Crystal Braiding (Very Rare) – Dropped from Body
  • Metal Bone (Rare) – Dropped from Body
  • Luminous Brainstem (Very Rare) – Dropped from Body
  • Sturdy Hardplate (Common) – Dropped from Body and Resource Canister
  • Rockbreaker Mining Claw* (Very Rare) – Dropped from Mining Claw
  • Blastpaste (Rare) – Dropped from Resource Canister

*Loot items marked with an asterisk are exclusively dropped from the Rockbreaker machine.


In Horizon Forbidden West, Cauldrons allow players to override the machines within that Cauldron once they have completed it. Completing a Cauldron usually means traversing through its dungeon-like corridors and facing off against a boss at the end. The Rockbreaker is a part of the Kappa Overrides Cauldron.

Interested in other machine guides in Horizon Forbidden West? Check out How to defeat the Slitherfang in Horizon Forbidden West on Pro Game Guides!

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