Below is a walkthrough for the Level 15 side quest called The Deluge in Horizon Forbidden West. To obtain this quest, approach the sunken village to the far north of Scalding Spear.
Explore the Village
Swim to the giant tower in the middle of the village to find some damsels in distress.
Rescue the Survivors Trapped in the Metal Tower
Use your focus on the building to the north side of the tower to locate a vent at the waterline on the tower. Push down the tree across from the vent then climb across.
Once in the building, use your Pullcaster to pull it out the vent then pull down the crate above the climbing pegs on a metal post. Use the crate to climb up the pegs. Follow the rusted metal walkway around to end up on a metal beam. Use your Pullcaster to pull down another metal beam across the way.
Jump on to it then turn around and use your Pullcaster to pull down another beam on top of where you just were.
Jump to that beam then head through a vent hole. This will allow you to reach the top of the building. Jump over to the building with the people stuck in it then jump onto the ladder. After you fall into the building below, speak with the survivor. Afterwards, use your Pullcaster to pull down 2 metal beams then climb up and around to reach a ladder. Pull out the vent at the top then climb through.
Go to the Grotto
Head to the north end of the village to find some guys on top of a wooden platform atop a rock. Defeat the machines then talk to the survivors.
Go to the Eastern Cliffs
Travel to the east of the village to find more people trapped. Clear the rubble from the crane using your Pullcaster.
Next, dive into the water to find more rubble on the left side. Ignite the fire gleam to clear it. Climb up the tower next to the crane then use your Pullcaster to remove the counterweight. Next, climb up the crane and shoot the cables. Afterwards, speak with the survivors.
Talk to Natikka
Travel south of the city to speak with Natikka.
Go to the Gouge
Travel to the Gouge northwest of Natikka.
Clear the Debris
Use your Pullcaster to clear out the debris.
Enter the Gouge
Head inside and drop down the shaft to find Kentokk.
Find the Source of the Waterfall
Use your Pullcaster to reach a hanging beam then pull down the vent. Use your Pullcaster to reach the vent then head inside. Once you get through the vent, you’ll need to pull down a crate then use it to climb onto the ledge it was resting on. From there, keep climbing up until you reach the top of a platform in the elevator shaft. You’ll then jump across 2 beams. On the second beam use your Pullcaster to open up a hole across from you revealing a grapple point. Grapple over to the point then climb into the tunnel with the cart tracks. Follow the tunnel around and eventually you’ll find some fire gleam. Ignite it to trigger a cutscene! Afterwards, the quest will complete!
Rewards
- 4125 XP
- 2 Skill Points
- 1 Tenakth Vindicator