Endwalker content

Eureka Orthos (Floors 11-20)

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See also: Eureka Orthos

Deep Dungeon.png

Eureka Orthos (Floors 11-20)

EO 11-20 Banner.png
Level
86 (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 Delve into Myth
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 11-20) is a level 86 deep dungeon introduced in patch 6.35 with Endwalker.

Enemies

Floors 1-40 Guide by Joonbob
Enemies
Enemy Level Aggro Type Known Floors Notes
Orthos Spirulina 86 Sight 11-12
Great Orthos Morbol 86 Sight 11-14 Bad Breath - inflicts various ailments
Orthos Netzach 87 Sight 11-14
Orthos Microsystem 88 Proximity 13-15
Orthos Belladonna 88 Sight 14-15
Orthosoldier 89 Sight 15-17
Orthosystem β 89 Proximity 16-17
Orthos Rafflesia 89 Sight 16-19
Orthohunter 90 Sight 18-19
Orthos Sawtooth 90 Sight 18-19 Late telegraph: Mean Thrash - Rear cone
Mimic 90 Proximity 11-19 Bronze Chests
Patrolling Enemies
Enemy Level Aggro Type Known Floors Notes
Orthos Keter 87 Sight 11-12
Orthos Wood Golem 88 Sight 14-16
Orthos Groundskeeper 90 Sight 17-19
Dread Beasts
Enemy Level Aggro Type Known Floors Notes
Demi-Cochma 90 Sight 11-19 Grants 30m Vulnerability Down buff (10%) upon defeat
Lamia Queen 90 Sight 11-19 Grants 30m Rehabilitation buff upon defeat
Meracydian Clone 90 Sight 11-19 Grants 30m Damage Up buff (10%) upon defeat

External Links

Deep Dungeon Compendium Floor 11-20 guide

Floor 20 Boss

Aggressive difficulty r6.png Cloning Node

Cloning Node's arena is a large circle, with cloning tanks on the outside.

Offensive Command: Cloning node tethers some adds outside the arena edge. These adds will then use Flame Breath, a large cone AoE with a late telegraph that inflicts Vulnerability Up.

Order Relay: Same as above, but commands 2 sets of adds which will resolve one set after another. Both sets will have a solo add, stand next to the second solo add for the first set, then the first solo add for the second set.

Piercing Laser: Line AoE, inflicts Vulnerability Up.

Rotation

  • Beginning of fight
    • Offensive Command: 3 adds tethered, stand beside any of them
    • Offensive Command: 5 adds tethered, stand beside add with no tether directly opposite
    • Piercing Laser
    • Order Relay
  • Repeating
    • Piercing Laser
    • Piercing Laser
    • Offensive Command: 5 adds tethered, stand beside add with no tether directly opposite
    • Order Relay