A journal-derived encounter reference for The Steamvault, not a strategy guide: every section quotes the Adventure Guide. Open Database for the raw journal tree and the full loot grid.
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30-second TL;DR
Adventure Guide says
Coilfang Reservoir is the name for a naga-dominated compound that lurks under Zangarmarsh's deepest waters.
The reservoir, punctured throughout by massive open pipes and pistons, seems big enough to house armies - and, yet, its purpose isn't strictly military.
At the height of the night elf empire, the Highborne Thespia delighted in art and music. Her love of these things vanished during the Great Sundering, when she and many of her kin were sucked into Azeroth's deeps and transformed into hateful naga. In the millennia that followed, Thespia remained a close confidant of her childhood friend, Lady Vashj. Without hesitation, she journeyed with her comrade to Zangarmarsh and vowed to oversee the naga's quest to drain the region's water supply.
The irradiation of Gnomeregan transformed many of the city's survivors into leper gnomes. Among these victims was the brilliant Mekgineer Steamrigger. Although he escaped Gnomeregan and retained his intellect, whatever ethics and compassion he had once possessed were gone. He wandered Azeroth, selling his knowledge to a number of unscrupulous groups such as the Bloodsail Buccaneers. Recently, the naga hired Steamrigger to operate the intricate machinery in Zangarmarsh's Steamvault.
Deep within the Steamvault, the naga have begun experimenting with a mysterious substance to strengthen their warriors and purge them of fear. Kalithresh was one of Lady Vashj's first servants to volunteer as a test subject for this dark elixir. As reward, he has been charged with guarding the expansive Steamvault and ensuring the region's arcane machinery operates without interruption.
The game data places the dungeon entrance for The Steamvault in Zangarmarsh at map coordinates 50.2, 33.3. The The Steamvault database page carries the raw journal and the full loot grid.
Player strategy
This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal.
Questions
How many bosses are in The Steamvault?
The Adventure Guide lists 3 encounters.
What loot does The Steamvault drop?
The journal lists 26 drops across its encounters. Open a boss guide or the database page for the per-encounter tables.
Is this the database page for The Steamvault?
No. This is the journal-derived encounter reference, not a strategy guide. The encyclopedia page with the raw journal tree and the full loot grid is linked as Database on this page.
Where does this guide's text come from?
Quoted Adventure Guide sections come from TheWoWDB's retail datamine (client build 12.1.0.69875, ingested 2026-09-18). We do not invent positioning, assignments, or cooldown timings.
Source and build
This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal. Quoted sections come from TheWoWDB Adventure Guide datamine (client build 12.1.0.69875, ingested 2026-09-18). Ability names link to first-party spell pages. When a newer retail build is ingested, this page updates with it.
TheWoWDB
Cloak of Whispering Shells
Fathomheart Gauntlets
Gauntlets of the Bold
Incanter's Gloves
Moonrage Girdle
Scintillating Coral Band
