Horizon Forbidden West: Slaughterspine - Cauldron GEMINI boss, how to defeat? Horizon Forbidden West guide, walkthrough
This page of the tutorial for Horizon Forbidden West contains a description of the duel with the boss Slaughterspine - it's a gigantic machine from the GEMINI cauldron.
Last update: 09 March 2022
This page of the Horizon 2 Forbidden West game guide contains a walkthrough of the boss fight against Slaughterspine, a large machine encountered during the main quest in Cauldron GEMINI. From our guide, you will learn the boss's weaknesses, Slaughterspine's main attacks and how to dispose of the big machine once and for all.
Location of the fight with Slaughterspine
The battle against Slaughterspine takes place in the Assembly Chamber of Cauldron GEMINI, a unique location visited during one of the game's final main quests.
The Slaughterspine won't appear in the assembly chamber when Aloy first enters it. The main character will first have to perform certain activities in the smaller chambers of the cauldron and then return to the great hall later.
Boss battle description
As per usual, begin the Slaughterspine battle by scanning the enemy machine. You will learn that the Slaughterspine is weak to two elements: freeze and purgewater. Try to adjust your equipment to take full advantage of these two weaknesses (optionally, you can also resort to traps).
In turn, the boss's attacks mainly use the plasma element, so it would be a good idea to put on an outfit that increases your resistance to plasma before the battle. This allows Aloy to take less damage if she is hit by one of Slaughterspine's strong attacks.
Carefully sift through all the tabs of Slaughterspine's entry to determine the components necessary to launch the plasma attacks. Attacking them (preferably with the right elements) should become your priority. The faster you can stop Slaughterspine's strong attacks, the easier it will be for you to keep Aloy alive.
Until the boss is stripped of its main components, try to run and dodge around the arena as much as possible, especially when Slaughterspine is preparing to launch one of its strong attacks.
You should especially pay attention to the two Plasma Energizers located on the sides of the enemy machine. If the Slaughterspine manages to fully charge them, its attacks will become stronger. You should try to sabotage them.
Another part of the armor that you should try to target is the Spinetail, which consists of several components. It can be used to launch plasma attacks, but more importantly, detaching it will give you access to a heavy weapon known as the Spinetail Launcher. It's worth using at least one of these to damage the giant machine.
After winning the battle, don't forget to search the defeated machine to obtain tons rare loot.