Complete Drowned Hopes Quest in Horizon Forbidden West

Q: How to start Drowned Hopes?

To start the Drowned Hopes side quest in Horizon Forbidden West, talk to Carja Scholars at the Carja Camp after completing the main quest 'Death's Door'. You'll need to find three Vault Keys from submerged ruins and an underground bunker, defeat various machines including Scroungers, Widemaws, a Skydrifter, Scrappers, a Ravager, two Leapslashers, and a Snapmaw. Finally, return to the Carja Camp to craft the Guardian Tripcaster using the Mobile Cover System Prototype and Data Disc.

Q: Where to find Jagged Deep Delve Vault Key?

To start the Drowned Hopes side quest in Horizon Forbidden West, talk to Carja Scholars at the Carja Camp after completing the main quest 'Death's Door'. You'll need to find three Vault Keys from submerged ruins and an underground bunker, defeat various machines including Scroungers, Widemaws, a Skydrifter, Scrappers, a Ravager, two Leapslashers, and a Snapmaw. Finally, return to the Carja Camp to craft the Guardian Tripcaster using the Mobile Cover System Prototype and Data Disc.

Q: How to defeat machines at Dread Bluff?

To start the Drowned Hopes side quest in Horizon Forbidden West, talk to Carja Scholars at the Carja Camp after completing the main quest 'Death's Door'. You'll need to find three Vault Keys from submerged ruins and an underground bunker, defeat various machines including Scroungers, Widemaws, a Skydrifter, Scrappers, a Ravager, two Leapslashers, and a Snapmaw. Finally, return to the Carja Camp to craft the Guardian Tripcaster using the Mobile Cover System Prototype and Data Disc.

Q: Where is the Vault in Drowned Hopes?

To start the Drowned Hopes side quest in Horizon Forbidden West, talk to Carja Scholars at the Carja Camp after completing the main quest 'Death's Door'. You'll need to find three Vault Keys from submerged ruins and an underground bunker, defeat various machines including Scroungers, Widemaws, a Skydrifter, Scrappers, a Ravager, two Leapslashers, and a Snapmaw. Finally, return to the Carja Camp to craft the Guardian Tripcaster using the Mobile Cover System Prototype and Data Disc.

Q: How to craft Guardian Tripcaster?

To start the Drowned Hopes side quest in Horizon Forbidden West, talk to Carja Scholars at the Carja Camp after completing the main quest 'Death's Door'. You'll need to find three Vault Keys from submerged ruins and an underground bunker, defeat various machines including Scroungers, Widemaws, a Skydrifter, Scrappers, a Ravager, two Leapslashers, and a Snapmaw. Finally, return to the Carja Camp to craft the Guardian Tripcaster using the Mobile Cover System Prototype and Data Disc.

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Walkthrough

1
Start the Quest: After completing the main quest 'Death's Door', travel southeast from Stone's Echo to the Carja Camp. Speak with the Carja Scholars to begin the Drowned Hopes quest. Note: You must also complete the main quest 'The Sea of Sands' to finish this side quest.
2
Clear the Dig Site: Head east across the river from the Carja Camp and follow the coast south to the Jagged Deep Delve. Defeat the two Scroungers and two Widemaws present.
3
Find the Jagged Deep Delve Vault Key: After clearing the area, dive west into the water. Locate a submerged ruin and use the Data Console within. Swim to the western side of the ruin, find a hole, swim through, and collect the first Vault Key. This triggers the 'Checkpoint Delta' datapoint and reveals a new location.
4
Find the Dread Bluff Vault Key: Travel to the ruins of Dread Bluff on the peninsula southwest of Jagged Deep Delve. Defeat the Skydrifter, two Scrappers, and a Ravager. Climb to the northern end of the fort for a vantage point to attack them. Afterward, find a building in the center of the ruins. Climb its northeastern corner, drop down a shaft to the west, and find an entrance to an underground bunker along the eastern wall. Activate the console and collect the second Vault Key. This triggers the 'Checkpoint Echo' datapoint.
5
Find the Devil’s Slide Vault Key: Go to the Devil’s Slide ruins northwest of Dread Bluff. Dive into the water, locate a submerged bunker, pry open two doors, activate the console, and collect the third Vault Key. This triggers the 'Checkpoint Foxtrot' datapoint.
6
Find the Vault: With all three Vault Keys, head south of Devil's Slide to the quest marker. Dive into a cave, pry open a weak section of wall, and swim east. Surface and follow the path to a clearing with machines: two Leapslashers and a Snapmaw. Defeat them, then enter the cave to the south. Crawl under a Corruptor to reach an ancient bunker.
7
Access the Prototype: Inside the bunker, find three terminals. Use each of your Vault Keys on the corresponding terminal. Enter the vault, obtain the 'Last Words' datapoint, and open the cache to find the Mobile Cover System Prototype.
8
Craft the Guardian Tripcaster: Return to the Carja Camp and speak with the Carja Scholars. You will receive the Data Disc. Use a nearby Workbench to craft the Guardian Tripcaster, completing the quest.

Tips

When fighting the machines at Jagged Deep Delve, use Silent Strikes on the Scroungers. The Widemaws are far enough apart to potentially fight them one-on-one.
For the Dread Bluff encounter, consider using Silent Strikes to soften up the machines before engaging conventionally. Alternatively, use the perch on the northern end of the fort to attack from above, prioritizing the Skydrifter first.
The machines guarding the vault (two Leapslashers and a Snapmaw) may be Apex variants. Be prepared for a challenging fight.
The Mobile Cover System Prototype and Data Disc are used to craft the Guardian Tripcaster.

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