View source for Eureka Orthos (Floors 81-90)

{{see also|Eureka Orthos}}
{{Duty infobox
| name = Eureka Orthos (Floors 81-90)
| description = 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. 
| image = EO 81-90 Banner.png
| type = Deep Dungeon
| level = 90
| level-sync = 90
| size = flex4
| unsync = n
| time-limit = 60
| roulette = 
| tomestones = 
| entrance = Mor Dhona
| entrance-coordinates = 34.8, 19.2
| req-quest = Rage Extinguished
| patch = 6.35
| release = endwalker
}}
{{#ev:youtube|YMQBQ0F7wog|350|right|Floors 71-99 Guide by Joonbob}}
==Enemies==
{| {{STDT|sortable pve align-left}}"
|+ Enemies
|-
! Enemy !! Level !! Aggro Type !! Known Floors !! Notes
|-
| '''[[Orthos Hecteyes]]''' || 90 || Sound || 81-83 || Catharsis - Massive telegraphed point-blank AoE
|-
| '''[[Orthos Persona]]''' || 90 || Proximity || 81-83 ||
|-
| '''[[Orthos Catoblepas]]''' || 90 || Sight || 81-84 || Out of Combat: Demon Eye - Gaze inflicts [[petrify]]
|-
| '''[[Orthos Deepeye]]''' || 90 || Sight || 83-85 ||
|-
| '''[[Orthos Pudding]]''' || 90 || Sight || 84-86 || Dark II - Massive telegraphed frontal conal AoE
|-
| '''[[Orthos Abyss]]''' || 90 || Sight || 84-87 ||
|-
| '''[[Orthos Spartoi]]''' || 90 || Sight || 85-88 || Late Telegraph: Triple Trial - frontal conal AoE
|-
| '''[[Orthos Pegasus]]''' || 90 || Sight || 86-89 || Late Telegraph: Nicker - point-blank AoE
|-
| '''[[Orthos Wraith]]''' || 90 || Proximity || 86-89 || Late Telegraph: Scream - large point-blank AoE inflicts [[stun|terror]]
|-
| '''[[Orthos Ahriman]]''' || 90 || Sight || 87-89 || Blistering Blink - massive telegraphed line AoE
|-
| '''[[Mimic (Eureka Orthos)|Mimic]]''' || 90 || Proximity || 81-89 || Gold Chests
|}
{| {{STDT|sortable pve align-left}} "
|+ Patrolling Enemies
|-
! Enemy !! Level !! Aggro Type !! Known Floors !! Notes
|-
| '''[[Orthoiron Corse]]''' || 90 || Proximity || 81-84 || Late Telegraph: Glass Punch -  Small frontal conal AoE
|-
| '''[[Orthos Gourmand]]''' || 90 || Proximity || 84-86 || Untelegraphed: Inhale - pulls in players. Untelegraphed/fast cast: Moldy Sneeze - small frontal conal AoE
|-
| '''[[Orthos Specter]]''' || 90 || Proximity || 86-89 || Late Telegraph: Left/Right Sweep - Massive 210 degree cleave on corresponding side. Ringing Burst - massive donut AoE. Surrounding Burst - large point-blank AoE.
|}
{| {{STDT|sortable pve align-left}} "
|+ Dread Beasts
|-
! Enemy !! Level !! Aggro Type !! Known Floors !! Notes
|-
| '''[[Demi-Cochma]]''' || 90 || Sight || 81-89 || Grants 30m Vulnerability Down buff (10%) upon defeat
|-
| '''[[Lamia Queen]]''' || 90 || Sight || 81-89 || Grants 30m Rehabilitation buff upon defeat
|-
| '''[[Meracydian Clone]]''' || 90 || Sight || 81-89 || Grants 30m Damage Up buff (10%) upon defeat
|}
===External Links===
'''[https://www.ddcompendium.com/eo_floorsets/081.html Deep Dungeon Compendium Floor 81-90 guide]'''

==Floor 90 Boss==
===[[File:Aggressive difficulty r6.png|link=]] [[Administrator]]===

{{Deep dungeon nav|Eureka Orthos}}