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Dungeon encounter reference

Gnomeregan Guide

A journal-derived encounter reference for Gnomeregan, 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

  • Built deep within the mountains of Dun Morogh, the wondrous city of Gnomeregan was a testament to the gnomes' intelligence and industry.
  • But when the capital was invaded by troggs, the gnomish high tinker was betrayed by his advisor Sicco Thermaplugg.
  • The Adventure Guide lists 5 encounters: Crowd Pummeler 9-60, Grubbis, Viscous Fallout, Electrocutioner 6000, Mekgineer Thermaplugg.

At a glance

Gnomeregan in the Adventure Guide
TypeDungeon
ExpansionClassic
Encounters5
Journal abilities12
Drops22
Item level18
Tradeable drops0

Encounters

Adventure Guide says

1Crowd Pummeler 9-60

In Gnomeregan's heyday, inventors would compete for status by pitting their creations against one another. The mekgineer Oglethorpe Obnoticus built an unbeatable robot, and this earned him respect in the high tinker's court. Sicco Thermaplugg stole Obnoticus's blueprints and then made a giant version of the machine. He set his forgery loose, and the horrific results drove the ruling council to banish the innocent Obnoticus. The Crowd Pummeler 9-60 is still one of Thermaplugg's favorite (stolen) inventions.

Arcing SmashCrowd PummelTrample

5 drops · item level 18 · 4 slots (Feet, Head, Two-Hand, Waist) · all Bind on Pickup

2Grubbis

The radioactive gas that flooded the city was meant to anger the troggs and kill the gnomes, and Thermaplugg's plan was brutally effective. One trogg, however, reacted oddly to the substance: Grubbis grew. And grew. It was a side effect that Sicco had not anticipated, but he's never been one to waste valuable (and dangerous) resources. This giant trogg now patrols the tunnels of Gnomeregan. His loyal basilisk pet, Chomper, helps Grubbis sniff out gas leaks, tasty fungi, and even tastier intruders.

Strike

4 drops · item level 18 · 4 slots (Hands, Head, Legs, Waist) · all Bind on Pickup

3Viscous Fallout

The formerly robust and elegantly complex waterways of Gnomeregan are now an irradiated mess filled with toxic slime. A lone water elemental who had dwelt in the gnomes' aquifer became trapped in the contamination, and the pollution corrupted its pure form. It currently wanders the halls of Gnomeregan in anger and agony, a liquid embodiment of the vile poison of Thermaplugg's betrayal.

Toxic Volley

6 drops · item level 18 · 5 slots (Chest, Feet, Head, One-Hand, Two-Hand) · all Bind on Pickup

4Electrocutioner 6000

Mekgineer Thermaplugg is not a patient gnome. Rather than putting his inventions through a battery of tests to determine their safety and effectiveness, he rushes them into the field and moves on to the next project. The Electrocutioner 6000 was his first attempt at harnessing electricity as a weapon via a super-charged mechano-tank. Lieutenant Tom "Sizzlepants" Crankle, the only soldier to survive piloting the Electrocutioner, is now something of a hero among the leper gnomes.

MegavoltShockChain Bolt

3 drops · item level 18 · 3 slots (Finger, One-Hand, Wrist) · all Bind on Pickup

5Mekgineer Thermaplugg

Murderer, traitor, and self-proclaimed king of the gnomes, the mekgineer Sicco Thermaplugg rules over the radioactive halls of Gnomeregan with a malfunctioning iron fist. His subjects are numerous, vicious, and insane enough to defend their crazed king against any intrusion from the upper world. It is Thermaplugg's madness that makes him so dangerous; he possesses the cunning to destroy everything around him, with no thought for his own life. There is a reason that even the monsters of Gnomeregan fear him.

Steam BlastPoundWelding BeamDetonate

4 drops · item level 18 · 4 slots (Finger, Head, Shield, Two-Hand) · all Bind on Pickup

3D Model

First-party render from the game files. Model © Blizzard Entertainment.

Mounts, toys, achievements, transmog

Only rows the journal loot table or an achievement title can prove for this encounter.

Achievements

Gnomeregan

Entrance and instance

Gnomeregan is a dungeon in the Adventure Guide. See the Gnomeregan database page for the raw journal, map, and loot grid. This guide does not invent coordinates or a walking path.

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 Gnomeregan?

The Adventure Guide lists 5 encounters.

What loot does Gnomeregan drop?

The journal lists 22 drops across its encounters. Open a boss guide or the database page for the per-encounter tables.

Is this the database page for Gnomeregan?

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.