Horizon Forbidden West: Grimhorn -boss, how to beat? Horizon Forbidden West guide, walkthrough
This page of the Horizon Forbidden West guide contains the walkthrough of the duel with the Grimhorn boss - the machine from the main quest Dying Land.
Last update: 28 June 2022
On this page of the guide to Horizon 2 Forbidden West you'll find a walkthrough of the boss fight against the Grimhorn which takes place while exploring the TAU Cauldron in The Dying Lands main quest. The walkthrough will tell you of the Grimhorn's weaknesses, how to obtain its launcher, how to weaken it and how to destroy it.
Boss fight location and preparing for the battle
The Grimhorn is a large machine you must face during The Dying Lands main quest. The battle takes place during exploration of the TAU Cauldron, also known as Repair Bay TAU. The Grimhorn awaits in the Cauldron's final chamber and the battle begins once you deactivate the forcefield surrounding it.
Once the battle starts you should scan the boss and read through its description in the machine catalogue. This will let you learn the boss' weaknesses - at this stage of the game you should already have access to acid damage (ranged weaponry and/or acid traps).
Defeating the Grimhorn
Reading the Grimhorn's entry will tell you of the boss' weak spots. Those are the horns, the tank on its back, the tail and the Cluster Launcher. If you attack the launcher you can eventually detach it, pick it up and use it as a heavy weapon.
During the battle rely on elemental attacks and regular attacks aimed at the boss' weak spots. Try to be on the move at all times. This should let you avoid its melee attacks and its ranged fire attacks.
Smaller machines will join the fray but you should try to save them for later. Prioritize destroying the boss while carefully watching the remaining machines so you can dodge their attacks. After defeating the Grimhorn deal with them as well.