Eureka Orthos (Floors 1-10)

See also: Eureka Orthos

Eureka Orthos (Floors 1-10)

Level

81 (Sync: 90)

Difficulty

Normal

Party size

Flexible
1-4 man • 1-4

Unsyncing

Not Allowed

Time limit

60 minutes

Req. 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 1-10) is a level 81 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 Imp	81	Sight	1-2
Orthoiron Claw	81	Proximity	1-3
Orthos Dahak	83	Sight	1-4
Orthos Grenade	83	Sight	3-5	Late telegraph: Big Burst - Point blank circle
Orthos Demon	83	Sight	4-5
Orthos Behemoth	84	Sight	5-7
Orthos Water Sprite	84	Proximity	6-7
Orthos Bhoot	84	Sound	6-9
Undead Orthos Dragon	85	Sight	8-9
Orthos Thanatos	85	Sound	8-9
Mimic	85	Proximity	7-9	Bronze Chests

Patrolling Enemies

Enemy	Level	Aggro Type	Known Floors	Notes
Orthos Succubus	82	Sight	1-3
Orthos Vassago	83	Sight	4-6
Orthos Fachan	85	Sight	7-9	Dread Gaze - inflicts paralysis

Dread Beasts

Enemy	Level	Aggro Type	Known Floors	Notes
Demi-Cochma	90	Sight	1-9	Grants 30m Vulnerability Down buff (10%) upon defeat
Lamia Queen	90	Sight	1-9	Grants 30m Rehabilitation buff upon defeat
Meracydian Clone	90	Sight	1-9	Grants 30m Damage Up buff (10%) upon defeat

External Links

Deep Dungeon Compendium Floor 01-10 guide

Floor 10 Boss

Gancanagh

Gancanagh's arena is a 3x3 grid, with each square containing a Pachypodium mine.

Authoritative Shriek: Gancanagh activates a random set of mines, which will then cast Mandrashock. Mandrashock is a telegraphed point-blank circle AoE that deals damage and Vulnerability Up if it hits.

Mandrastorm: Proximity AoE on Gancanagh, get away.

Rotation

• Authoritative Shriek
• Authoritative Shriek
• Mandrastorm
• Mines activate in rows/columns marked with 1, 2 and 3 dots, and explode in that order. The middle set is always the first set to explode; stand at set 3 and move to set 1 after it explodes

---

Eureka Orthos

 Deep Dungeons