Deralium upgrade materials
Find a Deralium Chunk in Revelation Depths
A fixed rare material pickup near Lost Berescu can fund a high-tier weapon upgrade when you reach Revelation Depths.
WHERE & HOW TO FARM
Find a Deralium Chunk in Revelation Depths
Revelation Depths: from the Vestige of Lost Berescu, ascend the stairs and ladders past the miners’ encampment, break the bridge barricade, and search the cave beyond.
Before you go
- Reach Revelation Depths and activate the Vestige of Lost Berescu.
- Have a weapon or other means to break the barricade at the bridge.
- Be prepared to fight or avoid the enemies along the upward route and inside the cave.
Farming steps
- Rest at Lost Berescu and check that you have enough healing for the climb and cave approach.
- Follow the stairs and ladders upward from the Vestige toward the miners’ encampment.
- Pass through the encampment, dealing with enemies only as needed to keep the route safe.
- Continue to the bridge and break through its barricade.
- Enter the miner cave beyond the bridge and search behind the rocks for the Deralium Chunk pickup.
- Collect the item and check your inventory so you do not mistake this fixed pickup for a repeatable drop.
- At Gerlinde’s forge, inspect your chosen weapon’s next upgrade and use the Chunk only when that tier calls for it.
- Check your inventory before making another trip; this item is a fixed pickup, not a respawning farm.
- Pair the Chunk with the smaller materials required by the weapon’s upgrade screen.
Repeat, collect and use
One-time fixed pickup. Normal resting or resetting enemies does not make the Chunk respawn; collect it once and use it for a matching upgrade.
Common mistakes
- Searching the cave repeatedly after collection: confirm the item is in inventory and move on.
- Expecting enemies to drop replacement Chunks: use Gerlinde’s stock and other progression pickups for material needs.
- Spending the Chunk on a backup weapon without checking tiers: reserve it for the weapon that best supports your build.
When to stop or switch
Stop searching once the Chunk is collected. Switch to Gerlinde’s renewable stock or continue the area if you still need other Deralium tiers.
Sources & fact checks
What you can get here
Open a guide to find other locations and see what the item is used for.