While playing Horizon Forbidden West, players will encounter red crystals known as Fire Glitter. Here is a guide to help you...
Horizon Forbidden West Eye of the Earth Quest Walkthrough
Butcher79
Job level: 17
Demand: Complete the Dying Lands
Reward: +8500 XP, +2 skill points
Walkthrough "Eye of the Earth" Horizon Forbidden West
Enter the building and climb the stairs until you reach a door that can be opened. You won't be able to open the second door just yet.
After a short conversation with Varl and Zo, open the second door to start going up the elevator shaft. Figuring out where you need to go is tricky due to the blinding red light, so keep spamming your Focus.
Climbing up the elevator shaft, open a new door. Enter the only opening in the server room and you should see two hatches for your Pulkaster. From the way you entered, the one on the left leads to a small cache, and the one in front of us leads us forward.
Crouch through the vent and then climb up the wall to access the new one. Although you can crouch by the vent on the right, there is a door at the end of it that you cannot access yet.
This will take us outside, where we will need to climb a mountain wall. Climb up the log (use your Focus on the lift points), go back and pull yourself up to the next yellow lift point.
Spam your Focus here, because the next few ascent points are almost invisible and well camouflaged by the color of the stalactites. Keep climbing up and around the stalactites and the mountain wall, trying to spam your Focus. When you no longer see the lift point, you will notice Aloy extending her hand. This means she can jump to new lift points that are not within the current camera angle.
Sit on a log and activate Focus to highlight a mountain wall that you can climb up. To reach it easily, jump off the log and activate the shieldwing in the air, then climb up. Again, keep spamming your Focus if you need directions.
Pry up the stone wall to get back inside through another ventilation shaft. Climb up the stairs and go down. Interact with the console to insert the GAIA core. However, things don't go as planned, and MINERVA appears to be uncooperative. However, after some persuasion, she allows Aloy to overpower her. Finally, MINERVA returns to the GAIA matrix.
Head down the stairs and open the door that Varl and Zo entered from, then enter the second door to enter the lab. Approach the terminal to start crafting.
The manufacturing terminal shows how many and which machines can be redefined. First you need to locate the cauldron in the world. Only then will you be able to create a quest to hunt for the materials needed to be able to override the vehicle you have unlocked in the Cauldron. Specifically, here, press the "triangle" to create a quest for Plowhorn Override, then press "Yes" to set it as the active quest.
The game will now pin the quest you just created and activated to the side, allowing you to go hunting for the needed materials. However, instead we will continue this main quest. To re-activate the main quest, then Quests, then Main, then to the Eye of the Earth. Return to the control room to speak with GAIA.
GAIA will tell you that initialization is complete, but GAIA needs its "Subfunctions" to restore its core. These are: ETHER, DEMETRA, POSEIDON and HEPHAESTUS. While the first three can be "easily" subdued, HEPHAEST has evolved and is likely to be more difficult to obtain. However, as GAIA says, without it, Earth's extinction will only be delayed, not permanently averted. After debriefing, GAIA asks you which subfunction you want to use first. For AETHER you need to be level 17, for POSEIDON you need to be level 22, for DEMETER you need to be level 24.
In this case, it makes sense to select only ETHER, as this is the level we are currently closest to, but feel free to select any of the other sub-functions. If you choose any of the others, you may have to level up a bit before continuing the story, especially if you're playing the game on higher difficulty levels. Once you choose your preferred utility feature, GAIA will select it as the next main quest in your journal. You can always switch to another slave function at any time, but for the sake of linearity, we will continue to focus on ETHIR in this guide.
It's time to move further west. Go down the stairs and open the west door. Open the next few doors until you're outside. EFER, here we are.
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