Mad God Mayhem

Last updated: Exalt Version (Sep 2021)
Mad God Mayhem
Difficulty: 6Difficulty: 6Difficulty: 6Difficulty: 6Difficulty: 6Difficulty: 6

The Mad God Mayhem is a boss rush dungeon introduced for Month of the Mad God 2018. It drops from the Spirit of Oryx, the final boss of the Oryx Horde. The dungeon is a source of special UT items and a number of vanity weapons.

Note that the dungeon intentionally lacks a difficulty rating.

This dungeon must be completed to earn ‘Season’s Beatins’ and ‘Realm of the Mad Godfame bonuses.

The Realm Eye says:
To lure adventurers into the chamber of his special creation, Oryx constructed simulacrums of past foes with the enticing offer of three mighty abilities.
The enemies are nothing more than the mirror images of the monsters they represent, but like Oryx’s own simulacrum, the threat they pose is very real.


Mad God Mayhem Key
The Mad God Mayhem Key is not sold by itself in the Nexus. It is mainly obtained from certain Tinkerer quests and from the Shop during events.


The Dungeon

This dungeon is a ‘boss rush’ dungeon that has four bosses, all from Deca’s era, fought in succession. All players entering the dungeon spawn into a small starting room which contains no enemies, and shortly afterwards a portal to the first chamber will appear. Upon killing the boss of each chamber, a portal to the next will appear.

Mad God Mayhem Teleporter

The chambers are as follows:

The bosses in chambers 1 to 3 are able to drop the same tiered loot as their non-Mayhem counterparts, as well as some additional items including T12 weapons and T13 armor, and untiered items exclusive to the dungeon. The bosses do not drop things like Marks, Consumables (including Stat Potions), or the UT items of their original versions. So for example the Gulpord here cannot drop a Murky Toxin.

The final chamber will always be the Decaract, a much tougher variant of the Pentaract consisting of 10 Towers that must be killed in order to summon the main central tower.

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The layout for the boss rooms of all bosses are the same as their original counterparts, with the exceptions being the Permafrost Lord, Biff, and Decaract having their own custom boss rooms.

Mayhem Layouts


Starting Chamber Biff's Chamber

Final Chamber

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A variety of dungeon bosses as well as event bosses appear in this dungeon, with Decaract being the final boss.

Chamber 1:

Chamber 2:

Chamber 3:

Chamber 4:


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Drops of Interest

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Tips and Strategies

Using piercing weapons to deal with the Eyes quickly can make the fight go much smoother. Rogues can also use their Cloak to evade all of the bullets, though they must be wary of any Eyes left unchecked once they uncloak.
If at any point you get Sickened while below half HP, nexus. You can be easily surprised by a horde of Eyes that can rip you apart in seconds.

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The Mad God Mayhem was added to the game in Patch X.28.0 - Month of the Mad Samurai.


The Decaract chamber has the in-game name Oryx Pandemonium Decaract, possibly indicating that the whole dungeon was once intended to be named Oryx Pandemonium. Chest events hosted in the dungeon refer to the final chamber by this name.

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