Cnidarian Reef

Last updated: Exalt Version (Feb 2024)
Cnidarian Reef
Difficulty: 5.5Difficulty: 5.5Difficulty: 5.5Difficulty: 5.5Difficulty: 5.5Difficulty: 5.5
Teleportation Disabled
Limit of 25 player(s)
Dust Drops
Green Dust
Red Dust
Purple Dust

The Cnidarian Reef is a high-level dungeon consisting only of a boss fight. The Reef is a source of various stat increase pots (mostly Attack and Defense) and two unique Untiered abilities: the Bottled Medusozoan and Cnidaria Rod. It is also the drop location for two pieces of the Slurp Scion Wizard ST Set.

Uniquely, the dungeon has an underwater theme much like the Ocean Trench. Like the Trench before it, players have to watch their oxygen levels unless they want to die of suffocation. However, suffocating is an even larger risk in this dungeon since it drains air much faster than the Ocean Trench, in addition to positioning the air vents in much more perilous locations.

The dungeon is accessible via the Court of Oryx.

This dungeon must be completed to earn ‘Travel of the Decade‘, ‘Enemy of the Court‘, ‘Hero of the Nexus’ and ‘Realm of the Mad Godfame bonuses.

The Realm Eye says:
The Royal Cnidarian is invaluable to Oryx, as its electric jellyfish ensnare all trespassers moving in or out of the Realm’s seas and imprisons them to await judgement.
However, the cnidarian had long suffered during the weekly machinations of Oryx’s court, as it is 95 percent water and was drying out at each meeting.
A reef was created at the mouth of a great river to house the Royal Cnidarian. The outflow carries the electricity of its stingers, creating a swath of unnavigable seas.


Reef Key The Reef Key is available in the Nexus for 100 Realm Gold.



The boss starts in the middle. Players will spawn in on the air bubbles surrounding it.

Example Layout

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Screenshot 1 Screenshot 2

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Drops of Interest

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Tips and Strategies

  • There are safe spots on each Air Bubble where you can still gain air, but won’t be hit by the continuous dazing shots that the Royal Cnidarian fires.
  • Air is drained faster in this dungeon than in the Ocean Trench. Keep an eye on your air meter.
  • When the boss becomes invulnerable, you’ll need to attack Gold Cnidarians that appear randomly. Focus these as soon as possible, since killing them quickly greatly shortens the length of the boss’ phases.
  • Do not get close to any of the oval-shaped shots. The boss shoots them in large numbers and they deal huge amounts of armor-piercing damage. If you really need air, touch the daze bubbles; they do less damage.
  • The Gold Cnidarian is the only enemy here (save the boss) that is immune to stasis, making the mystic really helpful for isolating it and making it easier to kill.
  • Don’t rely on other players to bodyblock for you, as most of the boss’ attacks hit multiple targets.
  • During the last phase, shooting down the minions is highly recommended since they can drop lots of stat pots, in addition to making it easier to get a clear shot at the now-moving boss.
  • More good advice can be found here.

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  • The dungeon was designed by Atrapper, a member of the “User-Generated Content” (UGC) group. It was on Public Testing before being officially released in Patch X.27.0.0 (June 2018).
  • The Reef is the 4th Court dungeon to be introduced (3rd if one excludes the event-exclusive Ice Tomb).

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