Endwalker content

Eureka Orthos (Floors 31-40)

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See also: Eureka Orthos

Deep Dungeon.png

Eureka Orthos (Floors 31-40)

EO 31-40 Banner.png
Level
90 (Sync: 90)
Difficulty
Normal
Party size
Flexible
1-4 man 1-4 Any class frame icon.png
Unsyncing
Not Allowed
Time limit
60 minutes
Req. quest
Feature quest Rage Extinguished
Entrance
Mor Dhona (X:34.8, Y:19.2)
Patch
6.35

In the late Third Astral Era, when the ancient Allagan Empire was at the zenith of its glory, researchers toiled deep under the Crystal Tower to uncover secrets which might uplift their motherland to even greater heights. Their laboratory was dubbed Eureka Orthos, where impossible concepts of immortality, cloning, and dominion over the divine were made reality. So fantastic was this research that the legend of Eureka has endured through the ages, and now you have been tasked by the archmagus Noah to bring the laboratory's buried secrets into the light of day.

— In-game description

Eureka Orthos (Floors 31-40) is a level 90 deep dungeon introduced in patch 6.35 with Endwalker.

Floors 1-40 Guide by Joonbob

Enemies

Enemies
Enemy Level Aggro Type Known Floors Notes
Orthobug 90 Proximity 31-32
Orthoiksalion 90 Sight 31-33
Orthos Shabti 90 Sight 31-34
Orthospider 90 Sound 32-35 Late telegraph: Particle Collision - Point blank circle, inflicts minimum
Orthos Lamia 90 Sight 33-36
Orthotaur 90 Sight 35-38 Late telegraph: 111-tonze Swing - Point blank circle, 11-tonze Swipe - Front cone
Orthopredator 90 Sight 36-38
Orthochimera 90 Proximity 36-39 Untelegraphed: Dragon's Voice - donut. Ram's Voice - point blank circle
Orthoempuse 90 Sound 37-39 Kneeling Snath: Runs behind target and inflicts knockback
Orthos Reptoid 90 Sight 37-39
Mimic 90 Proximity 31-39 Silver Chests
Patrolling Enemies
Enemy Level Aggro Type Known Floors Notes
Orthos Mirrorknight 90 Sight 31-34 Gaze inflicts 20 second stun
Orthonaga 90 Sight 34-36 Gaze inflicts slow
Phantom Orthoray 90 Sight 36-39 Late telegraph: Forearming - Massive 180 degree AOE, Atmospheric Displacement - point blank circle AOE
Dread Beasts
Enemy Level Aggro Type Known Floors Notes
Demi-Cochma 90 Sight 31-39 Grants 30m Vulnerability Down buff (10%) upon defeat
Lamia Queen 90 Sight 31-39 Grants 30m Rehabilitation buff upon defeat
Meracydian Clone 90 Sight 31-39 Grants 30m Damage Up buff (10%) upon defeat

External Links

Deep Dungeon Compendium Floor 31-40 guide

Floor 40 Boss

Aggressive difficulty r6.png Twintania Clone

Twintania Clone's arena is a large circle.

Twister: At the end of the cast, spawns a small tornado at each player's feet. If a player stands on one, it kills them instantly, so be sure to be moving at the end of the cast bar.

Meracydian Cyclone: Spawns many puddle AoEs that remain until after Turbine. Inflicts Windburn if stepped into.

Meracydian Squall: 4 puddle AoEs targeted on each player. Make sure to leave a clear path for Turbine.

Turbine: Knockback from centre.

Twisting Dive: Twintania Clone goes to the edge of the arena and telegraphs a line charge down the middle. At the end of the cast bar, spawns a Twister tornado, so be sure to keep moving.

Rotation

  • Beginning of fight:
    • Twister
    • Meracydian Cyclone
    • Meracydian Squall
    • Turbine
    • Twister
    • Meracydian Squall
    • Twisting Dive
  • Repeating:
    • Twister
    • Meracydian Cyclone
    • Meracydian Squall
    • Turbine