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Horizon Forbidden West

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Prototype Spike Thrower (Uncommon)

Staci Miller

The Prototype Spike Thrower is part of the Spike Thrower archetype. Spike Throwers are simply spikes thrown that explode a few seconds after landing. While their execution can be very slow, they hit hard when they land, so they can be great in some situations.

The Prototype Spike Thrower is one of the earliest accessible Spike Throwers in the game, and likely the first you’ll get.


Built by Delah and Boomer, this weaon can launch Explosive Spikes that detonate after a short delay. Spikes must be thrown at full draw in order to penetrate armor.

Where to get the Prototype Spike Thrower

To get this weapon, you’ll have to unlock the errand in Chainscrape called A Bigger Boom. Talk to two Oseram tinkers to unlock it, and they will offer to build Aloy a weapon… if she can find the right parts.

You’ll have to collect 3x Charger Horn and 1x Fanghorn Rib from Machines.

Ammo Types

Name Effect
Explosive Spikes Deals Impact and Explosive damage

Weapon Stats

This weapon deals two kinds of damage.

Impact Damage

Level Damage
Base Level 20
Level One 22
Level Two 26
Level Three 30

Explosive Damage

Level Damage
Base Level 70
Level One 78
Level Two 91
Level Three 105


Upgrade I: Increased Weapon Stats

  • MetalShardsIconHorizonForbiddenWest.png50 Metal Shards: The main way to get these is by exploring crates.
  • 1x Braided Wire: Dropped by machines. It’s possible for any machine in the game to drop one.

Upgrade II: Increased Weapon Stats

  • MetalShardsIconHorizonForbiddenWest.png75 Metal Shards
  • 1x Braided Wire
  • 1x Scrounger Circulator: dropped from a Scrounger after battle, or shot off during.

Upgrade III: Increased Weapon Stats, Unlocked Coil

  • MetalShardsIconHorizonForbiddenWest.png95 Metal Shards
  • 2x Braided Wire
  • 1x Scrounger Spark Coil
  • 1x Small Machine Core


This weapon has no perks.

Best Use

Spike Throwers are best used for slow machines that you want to get rid of quickly. Although the damage they can deal is shockingly mighty, it takes quite a while to load them up and quick machines may get the better of you in that time.

They’re also great to use from some cover or a slight distance, where even the fastest machines might take a second to get to you.


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Guide Information

  • Publisher
    Sony Interactive Entertainment
  • Platforms,
    PS4, PS5
  • Genre
    Action RPG
  • Guide Release
    16 February 2022
  • Last Updated
    31 March 2022
    Version History
  • Guide Author

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This guide for Horizon Forbidden West includes the following:

  • A Walkthrough for Main Quest
  • A Guide for all Errands, Side Quests and Cauldrons
  • An in depth analysis for Weapons and Armor.
  • Information on all new and returning Machines
  • How to find and complete all four Melee Pits
  • How to unlock and complete all stages of the Arena
  • How to find and override all five Tallnecks
  • Locations on all Collectibles
    • Ornaments
    • War Totems
    • Vista Points
    • Survey Drones
    • Signal Towers
    • Black Boxe

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