Dungeons consist of a network of rooms, containing various types of monsters based on the theme of the dungeon. The last room will contain one or more boss enemies, which may drop special items. These items may be considered as inferior, or extremely useful.

To reach a dungeon, it is necessary to kill certain enemies, which will randomly or systematically open the entrance to that dungeon. Any player can enter to fight the monsters inside, usually by clicking “Enter” or using the interact key when standing on an entrance.

Some dungeons have a multi-stage layout with portals connecting different stages. Details of these are described on the individual dungeon pages.

All portals stay open for 30 seconds before vanishing, except for the Locked Wine Cellar Portal which will remain for two minutes if not opened. An unlocked Wine Cellar portal remains open indefinitely.

Passing through the exit portal of most dungeons results in a completion statistic being counted on that player’s character. The Tunnel Rat fame bonus is awarded to characters that have completed all the requisite Tunnel Rat dungeons. These are indicated in the tables below. Not every dungeon tracks a completion stat - the dungeons that have no functioning counter are indicated with NC. Some dungeons have no completion/exit portal, these are indicated by NP.


  • Dungeons were added to the game in Build 74, representing the largest addition of content to the game since the extra Classes were first introduced.
  • When the first dungeons were added, monsters dropped Dungeon Keys, which were then used to open the portal. This was changed in build 110, with the exception of the Beach Bum.
  • Since build 111, Keys are available in the Nexus for Realm Gold.

Realm Dungeons

Realm Event Dungeons

These dungeons drop from enemies which can spawn up to once per realm. With a few exceptions, they are generally more difficult than Realm Dungeons and include some of the hardest dungeons in the game.

Name Portal Key Dropped Difficulty TR
Beachzone Beachzone Beachzone Key Beach Bum
Guaranteed drop
1 NP
Davy Jones’s Locker Davy Jones's Locker
Davy's Key Ghost Ship
Guaranteed drop
4 N
Mountain Temple Mountain Temple Mountain Temple Key Jade Statue Garnet Statue
Guaranteed drop
4 N
Deadwater Docks Deadwater Docks Deadwater Docks Key Crystal Prisoner
Guaranteed drop
5 N
Woodland Labyrinth Woodland Labyrinth Woodland Labyrinth Key Lucky Ent God
Guaranteed drop
5 N
The Crawling Depths The Crawling Depths The Crawling Depths Key Lucky Djinn
Guaranteed drop
5 N
Ocean Trench Ocean Trench Ocean Trench Key Hermit God
Guaranteed drop
5 Y
Ice Cave Ice Cave Portal Ice Cave Key Lord of the Lost Lands 5 N
Malogia Malogia Malogia Key Alien UFO
Guaranteed drop
5 NC
Untaris Untaris Untaris Key Alien UFO
Guaranteed drop
5 NC
Forax Forax Forax Key Alien UFO
Guaranteed drop
5 NC
Katalund Katalund Katalund Key Alien UFO
Guaranteed drop
5 NC
Lair of Draconis Lair of Draconis Draconis Key Rock Dragon 5 N
Tomb of the Ancients Tomb of the Ancients Tomb of the Ancients Key Grand Sphinx 5 Y
Fungal Cavern Fungal Cavern Portal Fungal Cavern Key Crystal Worm Father 5 N
Crystal Cavern Crystal Cavern Portal Crystal Cavern Key Crystal Worm Mother
Guaranteed drop
5 N
The Nest The Nest Portal The Nest Key Killer Bee Nest 5 N
The Shatters The Shatters Shatters Key Avatar of the Forgotten King 5 N
Lost Halls Lost Halls Lost Halls Key Lost Sentry 5 N*

*Lost Halls has three separate counters: one for Marble Colossus only, one for Cultists, and one for Void Entity (after defeating the Colossus).

Heroic Dungeons

These dungeons are a more difficult version of the boss room of their non-heroic counterparts, although they do provide better rewards in compensation. All heroic dungeons do not allow pets. None of these are required for the Tunnel Rat fame bonus.

Both heroic dungeons used to have a chance of dropping from the bosses of the respective non-heroic dungeon (Septavius the Ghost God and Archdemon Malphas) but they currently do not drop, meaning they are only accessible from keys. However, the keys are not currently sold in the Nexus.

Name Portal Key Dropped Difficulty TR
Heroic Undead Lair Heroic Undead Lair Heroic Undead Lair Incantation None 5 NC
Heroic Abyss of Demons Heroic Abyss of Demons Heroic Abyss of Demons Key None 5 NC

Oryx’s Castle

Two minutes after the realm closes, all players within the realm (not in dungeons) will be transported to Oryx’s Castle, which consists of multiple areas. None of these are required for the Tunnel Rat fame bonus.

Name Portal Dropped Difficulty TR
Oryx’s Castle No portal Automatically transported into it 2 minutes after realm closes 4 NC
Oryx’s Chamber Oryx's Chamber Stone Guardians Stone Guardians
Guaranteed drop
5 NC
Wine Cellar Wine Cellar Wine Cellar Oryx the Mad God
Locked portal a guaranteed drop
Must be opened with a Wine Cellar Incantation
5 NC
Court of Oryx Court of Oryx Oryx the Mad God
Guaranteed drop
- NC

Mini Dungeons

Mini dungeons are accessible from Court of Oryx by defeating Janus the Doorwarden in Oryx Castle. None are required for the Tunnel Rat fame bonus.

Special Event Dungeons

Special Event Dungeons are dungeons that were only available for a limited time. None of these dungeons are required for Tunnel Rat.

Name Portal Key Dropped Difficulty Available TR
Battle for the Nexus Battle for the Nexus Battle Nexus Key None 5 Sep 2013; Occasional mystery boxes N
Belladonna’s Garden Belladonna's Garden Bella's Key None 4 Player Appreciation Event Feb 2014; Valentine’s Day 2017 N
Halloween Haunted Cemetery Halloween Haunted Cemetery Halloween Cemetery Key Headless Horseman 3 Halloween Event Oct-Nov 2016 NC
Ice Tomb Ice Tomb Ice Tomb Key Court of Oryx 5 Winter 2016-17, 2017-18 NC
Rainbow Road Rainbow Road Rainbow Road Key Leprechaun
Guaranteed drop
1 St. Patrick’s Day Event Mar-Apr 2017 NP
Santa’s Workshop Santa's Workshop Santa's Workshop Key None 1 Oryxmas 2017 NC
Mad God Mayhem Mad God Mayhem Mad God Mayhem Key Spirit of Oryx
Guaranteed drop
N/A MotMG 2018 NC

Other Dungeons

These dungeons are neither dropped by enemies nor opened by keys. None are required for Tunnel Rat.

Name Portal Found Difficulty TR
Tutorial Tutorial Spawn point for new players, and also can be accessed directly by /tutorial command 0 NC
Oryx’s Kitchen Oryx's Kitchen The third stage of the tutorial, can be accessed indirectly via /tutorial or /nexustutorial commands 0 NC
The Arena The Arena Northwest area of Nexus, accessed by paying a fame or gold cost Raises each wave NP