Zero District has a fixed lower-route Queen Tungsten pickup; the route is a one-time collection, not a boss farm.
PC / Global, base game
WHERE & HOW TO FARM
Where to farm
Depths: Zero District, lower route. The map is found in Provisional Government Outskirts after Queen’s Knight Reborn; Davis at Home Base opens the destination.
Zero District’s lower route contains one fixed Queen Tungsten pickup, a useful contribution toward late-game weapon upgrades. Treat it as a collectible rather than a renewable drop: replaying this dungeon is not a supported way to obtain it again. You must first reach the Provisional Government Outskirts, defeat Queen’s Knight Reborn, and collect the Zero District map beyond the boss route. Give that map to Davis at Home Base to unlock the dungeon. Inside, use the central area to explore the lower branch and collect the item. Queen’s Knight Reborn is the map’s progression gate, not a recorded Queen Tungsten reward source. If you need more of the material after this pickup, the supported repeatable target is Void District’s Cannoneer and Blade Bearer encounter.
Progress to Provisional Government Outskirts and defeat Queen’s Knight Reborn.
Collect the Zero District map after the boss route and give it to Davis at Home Base.
Be ready to explore the dungeon’s lower branch and deal with its enemies.
After defeating Queen’s Knight Reborn, continue along the route toward the Government Center transition.
At the area with two ladders, inspect the pickup beside the ladder; the map is not down the larger ladder.
Collect the Zero District map, then return to Home Base and speak with Davis.
Choose “Head to the Depths” and select Zero District.
From the dungeon’s central area, explore the branch that descends to the lower route.
Defeat or pass the enemies guarding the branch, then collect the fixed Queen Tungsten pickup.
Return to Home Base and check Murasame’s weapon upgrade options to see whether the material fits your current upgrade.
Farming tips
Keep this fixed pickup separate from Void District’s repeatable Cannoneer and Blade Bearer reward.
If the lower route is difficult, use the dungeon’s central Mistle as your reset point before continuing.
Repeat, collect and use
The lower-route Queen Tungsten is a one-time fixed pickup. Zero District can be replayed, but replaying it is not a supported way to collect this item again.
Common mistakes
Calling the gate boss Queen Revenant Reborn: the correct progression gate is Queen’s Knight Reborn.
Looking for Tungsten from Queen’s Knight Reborn: this boss is not a recorded source of that reward.
Expecting the pickup to respawn: collect it once, then use Void District’s named boss encounter for repeatable Queen Tungsten.
When to stop or switch
Stop once you collect the fixed pickup. If you still need Queen Tungsten, switch to Void District and defeat Cannoneer and Blade Bearer.
Depths: Zero District, lower route. The map is found in Provisional Government Outskirts after Queen’s Knight Reborn; Davis at Home Base opens the destination.
Progress to Provisional Government Outskirts and defeat Queen’s Knight Reborn.
Collect the Zero District map after the boss route and give it to Davis at Home Base.
Be ready to explore the dungeon’s lower branch and deal with its enemies.
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Related guides
More guides for gathering materials and making progress.