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"The lesson will be taught in due time, Aloy. Until then, we wait."
This article contains heavy spoilers. Read ahead with caution.

"Don't like the look of those barbs on that thing's spine."
―Aloy, spotting a Slaughterspine

The Slaughterspine is a large combat-class machine first encountered in Horizon Forbidden West.

History[]

Like all combat class machines, the Slaughterspine was created by the rogue Subordinate Function HEPHAESTUS with the sole purpose of combating humans and curtailing the hunting of various machines.

The Nora huntress Aloy encountered Slaughterspines on multiple occasions during her adventures: first, when she, Varl, and Beta traveled into the aberrant Cauldron GEMINI, intending to merge HEPHAESTUS with GAIA, where a Slaughterspine ("Priority Unit S Mark 1") was fabricated by HEPHAESTUS in a last-ditch effort to prevent Aloy from returning to the Cauldron's core. Later, after Beta released HEPHAESTUS into Far Zenith's machine printing network as part of Aloy's final assault on the Zenith base, the rogue AI fabricated a number of Slaughterspines (along with Thunderjaws and Dreadwings) with which it combated the Zenith's Specter Drones, as well as the Zeniths themselves, to devastating effect.

Aloy also came across a Slaughterspine "guarding" a PSiClOPS survey drone on a mountain northwest of the Memorial Grove, as well as one on the same beach where she found a boat to the Isle of Spires, seemingly patrolling the coastline.

Later in the Burning Shores, Walter Londra summoned an Apex variant at Pangea Park in an attempt to kill Aloy and Seyka when they tracked him down.

Appearance[]

The Slaughterspine has a design based roughly on an outdated reconstruction of Spinosaurus. The face of the Slaughterspine easily shows the long extinct creature's influence in the machines design, with a long, slender snout with a split jaw, orange headpiece and a pair of quad optical sensors. It is covered head to tail in heavy armor plating, protecting it from plasma, fire, shock, and acid damage. Armor juts around the neck, up to the back. The Slaughterspine has a massive saw-bladed sail across its back, with two smaller, similarly sized spines around the main sail that serve as missile launchers. On its chest, it has a plasma earthblaster that covers a plasma core, and above it is a plasma energizer, which it uses to charge up its attacks. It has two massive legs, with the hips having circular plasma energizers that it uses to further charge its attacks, and two long forelimbs with Metalbite sacs on the shoulders. It has a long tail that ends in a three-pronged fan, each prong being capable of opening up to fire out lasers. Chillwater canisters are on its neck and Purgewater canisters are on its tail-limb.

Behavior[]

Like many large GAIA machines, Slaughterspines are solitary, never being seen in groups. They are frequently found along coasts, patrolling the beaches and attacking any human on sight.

Abilities[]

The Slaughterspine is one of the most dangerous machines created yet by HEPHAESTUS, combining agility with a large arsenal of Plasma attacks, as well as incredibly heavy armor which makes damaging the machine difficult. Both varieties of Slaughterspine are resistant to most elemental damages, with Shock and Plasma resistances being shared among them.

The Slaughterspine can bite the ground and try to charge into Aloy, slash her with its tail or stomp her if she gets too close. It can power up with the Plasma Energizers on its legs and release a massive plasma-infused shockwave, along with a high pitched screech that can deafen targets, giving the machine a window of opportunity to attack. Using its tail, it can fire 5 plasma beams at Aloy or infuse its normal attacks with Plasma. It can also blast a laser of plasma from its mouth, launch a plasma wave from its earthblaster, and shoot energized plasma missiles from its spinal launchers.

Weaknesses[]

While the Slaughterspine is incredibly deadly with its plasma attacks, it can only do this for so long before needing to recharge. Whenever it needs to recharge (or when the fight starts) it will open the plasma energizers on its hips and above the earthblaster. Hitting these allow for high damage and will cause them to retract, with one energizer fully retracting resulting in its deactivation. Shutting down all three prevents the Slaughterspine from getting enough charge, forcing it to attack with kinetics alone.

The Plasma Lancer and Plasma Spine Launcher can be shot off and used against it, though the machine itself is resistant to Plasma, making the weapons virtually useless against it.

Removing the armor around the plasma core in its chest reveals a key weak spot which can be shot for extra damage.

Finally, the machine has a Metalbite sack (Purgewater in case of the Apex variant) on each of its shoulders, which can be destroyed to cause an elemental explosion that automatically inflicts the status ailment on it.

The regular Slaughterspine is weak toward Freeze and Purgewater, whereas the Apex-variant is weak toward Acid and Fire.

Attacks[]

Name Windup Time Damage Trigger Range Description
Enraged Plasma Blast Short 15m - 45m
Raging Breath (Lead Up) Short 25m - 60m
Raging Breath (Wave) Short 25m - 60m
Enraged Atomic Breath Very Long 10m - 40m
Spine Barrage Medium 15m - 40m
Precision Spine Strike Long 15m - 40m
Lancer Wave Medium 15m - 50m
Lancer Eruption Long 0m - 52m
Core Earthblaster Medium 15m - 40m
Thundering Roar Very Short Deafened 0m - 31m
Raging Plasma Discharge Very Short 25m - 40m
Slaughter Bite Short 14m - 22m

30m - 90m

Rampage Rush Medium 31m - 62m
Dragging Plasma Sweep Medium 15m - 22m
Slaughter Sweep 180 Medium 12m - 32m
Slaughter Sweep 360 Medium 7m - 16m
Double Maul Medium 4m - 19m
Rampage Stomp Very Short 4m - 19m
Slaughter Crush Very Short 0m- 9m

Components[]

Name Variant Image Description Attributes
Body All Hard outer casing to protect synthetic muscle and operational systems. None
Processing Capsule All Resource and materials storage for internal functions. Tear off to collect its contents.
  • Detachable
  • Contains Valuable Resources
  • Destroyed When Killed
Purgewater Canister Standard Purgewater storage. Tear off to collect this resource or shoot with a Purgewater Arrow to detonate.
  • Chain Reaction
  • Detachable
  • Contains Valuable Resources
  • Destroyed When Killed
Acid Canister Apex Metalbite storage. Tear off to collect this resource or shoot with an Acid Arrow to detonate.
  • Chain Reaction
  • Detachable
  • Contains Valuable Resources
  • Destroyed When Killed
Metalbite Sac Standard Metalbite storage. Destroy to disable Acid attacks or leave intact to add loot to the carcass.
  • Explosive
  • Attack Removal
  • Persists When Killed
  • Contains Resources If Intact
Purgewater Sac Apex Purgewater storage. Destroy to disable Acid attacks or leave intact to add loot to the carcass.
  • Explosive
  • Attack Removal
  • Persists When Killed
  • Contains Resources If Intact
Plasma Core All Highly protected Plasma storage. Detach or destroy the Plasma Earthblaster to expose this weak spot.
  • Indestructible
  • Weak Spot
Plasma Earthblaster All Part of the Plasma arsenal, this devastating weapon launches homing payloads along the ground. Detach or destroy to disable.
  • Detachable
  • Attack Removal
  • Contains Valuable Resources
  • Destroyed When Killed
Plasma Energizer All When fully charged, this plasma generator can enhance the machine's attacks. Damage it is while it is charging to prevent this.
  • Indestructible
  • Ability Removal
Plasma Spine Launcher All Part of the Plasma arsenal, this powerful weapon fires homing orbs of Plasma.
  • Detachable
  • Attack Removal
  • Persists When Killed
  • Useable Weapon
Capacitator Capsule All Reinforced resource storage. Tear off to collect its contents.
  • Detachable
  • Contains Valuable Resources
  • Destroyed When Killed
Antenna All Signal transmitter used to call in machine reinforcements.
  • Detachable
  • Reinforcement Call Removal
  • Contains Valuable Resources
  • Destroyed When Killed
Chillwater Canister Standard Chillwater storage. Tear off to collect this resource or shoot with a Frost Arrow to detonate.
  • Chain Reaction
  • Detachable
  • Contains Valuable Resources
  • Destroyed When Killed
Blaze Canister Apex Blaze storage. Tear off to collect this resource or shoot with a Fire Arrow to detonate.
  • Chain Reaction
  • Detachable
  • Contains Valuable Resources
  • Destroyed When Killed
Tail Canister All Storage container for valuable resources. Tear off to collect its contents.
  • Detachable
  • Contains Valuable Resources
  • Destroyed When Killed
Spinetail Lancer All Part of the Plasma arsenal, this powerful weapon fires Plasma beans either as a long-range wave or a ground eruption.
  • Detachable
  • Attack Removal
  • Persists When Killed
  • Useable Weapon

Loot[]

Body

Processing Capsule

Purgewater Canister

  • Purgewater Canister (100%)

Metalbite Sac

Plasma Core

  • None

Plasma Earthblaster

Plasma Energizer

  • None

Plasma Spine Launcher

Capacitor Capsule

Antenna

Chillwater Canister

Tail Canister

Spinetail Lancer

Body

Processing Capsule

Acid Canister

Purgewater Sac

  • Purgewater Canister (100%)

Plasma Core

  • None

Plasma Earthblaster

Plasma Energizer

  • None

Plasma Spine Launcher

Capacitor Capsule

Antenna

Blaze Canister

Tail Canister

Spinetail Lancer

Variants[]

Variant Weakness Strength
Slaughterspine Freeze-Icon Frost

Purgewater Icon Purgewater

Fire-Icon Fire

Shock-Icon Shock
Corruption-Icon Acid
Plasma Plasma

Apex Slaughterspine Fire-Icon Fire

Corruption-Icon Acid

Freeze-Icon Frost

Shock-Icon Shock
Purgewater Icon Purgewater
Plasma Plasma

Trivia[]

  • Slaughterspine sites are usually located along coasts and beaches. This appears to bear great similarity to its animal inspiration, as Spinosauri were semi-aquatic and frequently found on both land and water (although the Slaughterspine appears to lack any aquatic capabilities).
  • Beta notes that the construction of a Slaughterspine requires an abnormally massive amount of power; this is likely due to its heavy use of Plasma.
  • The Slaughterspine can be seen as something of a newer or more powerful alternative to the Thunderjaw introduced in Horizon Zero Dawn; this is similar to the film Jurassic Park III, where Spinosaurus was presented as a newer, deadlier alternative to the Tyrannosaurus Rex used in previous Jurassic Park films.
  • The Slaughterspine's appearance heavily deviates from its animal influence, Spinosaurus, in some areas. Most likely due to it being based on an outdated design:
    • Its legs seem to be based off typical bipedal theropods dinosaurs, whereas Spinosaurus' legs were relatively short compared to its bodylength and was thus likely partly quadrupedal.
    • Its tail is long and thin similar to typical theropods dinosaurs, whereas Spinosaurus' tail had a sail to propel itself through the water.
  • The Slaughterspine's combat behavior and attack styles are a heavy reference to the titular monster Godzilla from the franchise of the same name, specifically the incarnation from the 2016 Shin Godzilla, many of the Slaughterspine's attacks ranging from the mouth to the tail and the split beams are almost identical to Godzilla , even one of its attacks the Enraged Atomic Breath, is of the same name as Godzilla's infamous attack.

Gallery[]

Machines
Horizon Zero Dawn
Acquisition Class Broadhead - Charger - Fireclaw - Frostclaw - Glinthawk - Grazer - Lancehorn - Rockbreaker - Scrapper - Snapmaw - Strider - Trampler
Chariot Class Corruptor - Deathbringer - Metal Devil
Combat Class Ravager - Sawtooth - Scorcher - Stalker - Stormbird - Thunderjaw
Communication Class Tallneck
Recon Class Longleg - Watcher (Redeye Watcher)
Transport Class Behemoth - Bellowback - Shell-Walker
Unknown Class Control Tower
Horizon Forbidden West
Acquisition Class Bilegut - Bristleback - Clamberjaw - Fanghorn - Plowhorn - Scrounger - Spikesnout - Stingspawn - Sunwing - Tideripper - Waterwing - Widemaw
Combat Class Clawstrider - Dreadwing - Grimhorn - Shellsnapper - Slaughterspine - Slitherfang - Specter - Specter Prime - Tremortusk
Recon Class Burrower - Skydrifter
Transport Class Leaplasher - Rollerback
Unknown Class Defense Drone
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