Dungeon Frigost Island
The Obsidemon's Hypogeum
Level 160 dungeon in the Tears of Ouronigride, on Frigost, at [-71,-83]: seven rooms of Sulfuriouses and an invulnerable boss that you have to make vulnerable by pushing an ally into it, the Obsidemon. Quests to start, strategy, monsters, achievements, secret map and loot.
![The Obsidemon's Hypogeum: the dungeon entrance, at [-71,-83] (Tears of Ouronigride)](/wp-content/uploads/dofus/donjon-hypogee-de-l-obsidiantre-entree-grand.webp)
Quests linked to the Obsidemon's Hypogeum
The dungeon quest, Lavomatic, starts at the hypogeum entrance; For Whom the Belt Holds follows it and is also completed on the Obsidemon. Accept them before entering: a fight won without the quest in progress doesn't count.
The dungeon quest, started in front of the entrance. Lavaz Za wants to give his companions a decent burial: discover the hypogeum, beat the Obsidemon in a single fight, then bring him the Staved-in Skull.
- Start
- Lavaz Za, Tears of Ouronigride
- Prerequisites
- Level 50
Staved-in Skullto hand over to Lavaz Za, 25,825,200 XP
Your city's agent wants the Obsidemon. Beat it in a single fight, discover the end of the dungeon, then report to Michele Seyroth for Bonta, or to Jammy Rokwai for Brakmar.
- Start
- Michele Seyroth, Frigost Village
- Prerequisites
- Level 130 and Lavomatic
Ice Kama2 ice kamas and 21,521,000 XP
For later
The Obsidemon is one of the four guardians to beat. Thomahon's Disciple asks you to defeat Sphincter Cell, Buck Anear, Kimbo and the Obsidemon under specific idol alterations.
- Start
- Thomahon's Disciple, Tears of Ouronigride
Obsidemon Vertebraand 25,825,200 XP
A Sulphurous Plant awaits you after the Obsidemon. To gain the trust of the S.L.I.P. prophets, Nicki Kerrs asks for three sulphurous plants: one at Feudala, one in the Desecrated Highlands, and the last after the boss.
- Start
- Onme Eadson, Tears of Ouronigride
- Prerequisites
- Level 100
Mooring Ball10 Ice Kamas and 36,604,000 XP
The hypogeum leads to Ignemikhal's cave. On the trail of the flame dragon, explore the hypogeum, approach the burning current and beat the Flame Keeper to meet Ignemikhal.
- Start
- Rosal, Otomai Island
- Prerequisites
- A Painted Shadow
Mofette Tuffand 165,253,200 XP
During events
- Tiwaapi Simulation
Tiwaapi can designate the Obsidemon as the guardian to defeat. Incarnam, .
Other Frigost quests go through the hypogeum: An Obsidemon Hack and Slash (reach its last room), In Search of Al Ive (up to room 4, without beating the boss), Blushing Blooms and Drilling Fields (plants and seeds), as well as Snow Business and Supply Depot, which meet you there at night.
The 7 rooms of the Obsidemon's Hypogeum
Seven fights against the Sulfuriouses, who pull, erode and resurrect their allies. For each room: the scenery, then the tactical view with the starting cells (blue: you, red: the monsters). Tap an image to enlarge it.
Room 1


Room 2


Room 3


Room 4
For the quest In Search of Al Ive, there's no need to go further: you just have to reach this room, without defeating the Obsidemon.


Room 5


Room 6


Room 7 — the Obsidemon


Defeat the Obsidemon
The Maglob's fifth turn
At the end of its turn 5, the Maglob explodes with Shutout and kills all characters more than 7 RNG away from it. Count its turns from the moment it is summoned: kill it, make it Pacifist, or gather everyone within 7 cells or less of it.
Level 160
8,000 HP
16 AP
6 MP
- Resistances (%)
Earth 23%
Fire 27%
Water 21%
Air 26%
Neutral 25%
It starts invulnerable, for the whole fight, as long as you don't push an ally into it. It strikes in a line up to 10 RNG, swaps places with you at 3 RNG, hits harder as it loses HP and summons a Maglob every 3 turns. Weak Point: Water, at 21%.
ObjectionFire Whack with life steal, in a line up to 10 RNG: get out of its lines.
SilicurseSummons a Maglob every 3 turns. Count its turns: it explodes at the end of turn 5.
AndespiteResurrects the last dead ally with 10% of their HP, up to 4 RNG.
SilicutPlace swap up to 3 RNG and Earth damage that climbs with the boss's lost HP.
The four-step strategy against the Obsidemon
The monsters, Atomystique first. Kill the Atomystique first: Democritic resurrects the last dead monster, and its death takes the resurrected one with it. Then watch out for the Solfatara, which heals its allies when hit.
Making the boss vulnerable. Push one of your characters against the Obsidemon, with push damage: it becomes vulnerable for 3 turns. Pushing a summon, or pushing the boss onto an ally, doesn't work. It gains 50 damage for 4 turns in the process.
Three turns to strike. The window starts as soon as it is pushed: use your biggest damage right away, then prepare the next push. The more HP it loses, the harder Silicut hits: don't stay 3 RNG away from it.
Never a monster against it. Pushing a monster onto a cell adjacent to the Obsidemon triggers Objurgation: it heals itself for 2,000 HP and gains 50 damage for 4 turns. All your pushes must target your allies, never the monsters near it.
The Maglob
Silicurse summons it every 3 turns. It is Heavy, so it can't be carried or swapped, and its Tag effect reflects 150 damage to you with every hit. Its only spell, Shutout, makes it explode at the end of its turn 5 and kills all characters more than 7 RNG away.
Two choices: kill it while taking the reflects, or gather the team at 1 within 7 RNG of it at the right turn, even if you have to push it to position it. A spell that makes it Pacifist on the turn of the explosion also prevents it.
The monsters of the Obsidemon's Hypogeum
Five level 152 Sulfuriouses with 3,500 HP, each very weak to a different element. Kill the Atomystique first: it is the one that resurrects the dead. The resistances in red are their weaknesses.
In which order to kill the monsters
- Atomystique — it resurrects the last dead monster every 2 turns, and the resurrected one dies with it.
- Solfatara — under Sulpheeling Better, each hit it takes heals its allies within a radius of 3.
Level 152
3,500 HP
12 AP
5 MP
- Resistances (%)
Earth 20%
Fire 35%
Water 19%
Air -30%
Neutral 12%
Democritic resurrects the last dead monster with 10% of its HP, every 2 turns. On contact, Prothon makes you Weakened, and Neuthron gives 200 damage to an ally for 4 turns. Very weak to Air.
Prothon
DemocriticResurrects the last dead monster with 10% of its HP, recast every 2 turns. Killing the Atomystique makes the resurrected one fall.
Neuthron200 damage for 4 turns and the Nukleon state on an ally, up to 6 RNG.
Level 152
3,500 HP
12 AP
5 MP
- Resistances (%)
Earth 15%
Fire -24%
Water 20%
Air 29%
Neutral 10%
Frasch gives it the Sulpheeling Better state: each hit received heals its allies within a radius of 3. Mercaptan removes 3 MP in a line, Brimstone steals life over 3 cells in front of it. Move its allies away before hitting it; weak to Fire.
Brimstone
FraschApplies the Sulpheeling Better state: while it lasts, hitting the Solfatara heals its allies within a radius of 3.
MercaptanRemoves 3 dodgeable MP, in a line from 3 to 7 RNG.
Level 152
3,500 HP
12 AP
3 MP
- Resistances (%)
Earth 28%
Fire 19%
Water -28%
Air 14%
Neutral 16%
Crackture pulls you 8 cells in a line, and Crackers steals life and removes 2 AP all around it. Crackitulation heals an ally, gives them 2 MP and 100 damage. Only 3 MP; weak to Water.
Crackers
CrackitulationOn an ally in a line: heal, 2 MP and 100 damage for 3 turns.
CrackturePulls 8 cells, in a line up to 8 RNG. Don't stay lined up with the Steam Crackler.
Level 152
3,500 HP
12 AP
5 MP
- Resistances (%)
Earth 37%
Fire 25%
Water -41%
Air 23%
Neutral 15%
In a line, Novarupta removes 100 dodge up to 4 RNG and Námafjall steals 2 RNG from 3 to 8 RNG. Yellowstone minimizes your random effects, and therefore your damage. Very weak to Water (-41%).
Novarupta
YellowstoneMinimizes your random effects for 2 turns: your damage drops to the minimum.
NámafjallSteals 2 RNG for 4 turns, in a line from 3 to 8 RNG.
Level 152
3,500 HP
12 AP
5 MP
- Resistances (%)
Earth 17%
Fire 10%
Water 9%
Air 31%
Neutral -29%
Fettle protects an ally: for 2 turns, each of your hits has a one in two chance of healing it or doubling the damage it takes. Fettuccine teleports it and heals around its arrival cell, Fetish erodes on contact. Weak to Neutral.
FetishOn contact: Water damage and 20% erosion for one turn.
FettleFor 2 turns, each hit on the targeted ally has a one in two chance of healing it or doubling its damage. Switch targets in the meantime.
Fettuccine
Preparing your run through the Obsidemon's Hypogeum
A level 150 to 160 dungeon for teams that know how to push and position themselves. You come here for the many Frigost quests, the achievements, the secret map and the capture of the Obsidemon, with a Soul Stone for Huge Souls (captures up to level 200).
How to enter the Obsidemon's Hypogeum
The entrance is in the Tears of Ouronigride, on Frigost Island, at ; the nearest zaap is the one at the Harebourg Castle Entrance . To access the zone, you must have completed the Violent Grolander Wreck once. Three ways to open it: an Obsidemon's Hypogeum Key (consumed), the key ring if it is registered there, or the automatic group search.
Crafting the Obsidemon's Hypogeum Key
It is crafted at a handyman. Four ingredients drop in the hypogeum: Solfatara Residue, Steam Crackler Heart, Atomystique Stone and Fresh Meat. Lard Bass, Belladonna and Corn complete the recipe.
| Ingredient | Quantity | Level |
|---|---|---|
| 2 | 150 | |
| 2 | 150 | |
| 2 | 150 | |
| 2 | 160 | |
| 2 | 160 | |
| 2 | 160 | |
| 2 | 160 |
Which team to bring against the Obsidemon
A character who pushes allies. Making the boss vulnerable requires pushing an ally into it with push damage. The Pandawa is ideal; any class able to push an ally will do.
Something to deal with the Maglob. Damage to kill it despite its reflects, positioning to gather the team within 7 RNG of it at the right turn, or a spell that makes it Pacifist. Plan for at least one of these solutions before its turn 5.
The five achievements of the Obsidemon's Hypogeum
Each achievement gives 21,521,000 XP and 2 Obsidemon Slag; Duo doubles the XP. Pushes on your allies never count against you: only those aimed at enemies make Special fail.
| Achievements | Condition | Points | XP |
|---|---|---|---|
| Defeat Obsidemon in his dungeon while completing the “At Apogeum” challenge. | 10 | 21 521 000 | |
| Defeat the Obsidemon in his dungeon while completing the “First” challenge. | 10 | 21 521 000 | |
| Defeat the Obsidemon in his dungeon while completing the “Statue” challenge. | 10 | 21 521 000 | |
| Defeat the Obsidemon in his dungeon while completing the “Duo” challenge. | 20 | 43 042 000 | |
| Defeat the Obsidemon in this boss's dungeon. | 10 | 21 521 000 |
Special: At Apogeum
Enemies must not be attracted or pushed. Push damage that removes invulnerability is obviously not counted. The ideal choice is to use a Pandawa to make the Obsidemon vulnerable. However, give up on pushing the Maglob: gather the team around it or kill it.
Drops and loot of the Obsidemon's Hypogeum
Base game rate, before Prospecting bonuses. The Obsidemon's Hypogeum Secret Key, at 6% on the boss, opens the secret map described below.
On the Obsidemon
Obsidemon SlagStone22 %
Obsidemon's Hypogeum Secret KeyFrigost Island6 %
Nougat Rabmarac BarTreat6 %
Obsidemon VertebraBone3,64 %
Bag of Eternal AshesContainer3 %
Fresh CarrionMeat1,09 %
Al Howin GobtubbyCeremonial pet0,65 %
On the henchmen of the Obsidemon
Fresh MeatMeat · Solfatara22 %
Solfatara ResidueStone · Solfatara22 %
Aline RoseFrigost Island · Steam Crackler20 %
Atomystique StoneStone · Atomystique18 %
Fumaroller StoneStone · Fumaroller18 %
Mofette StoneStone · Mofette17 %
Steam Crackler HeartStone · Steam Crackler16 %
Little Piece of FutureFrigost Island · Atomystique15 %
Solfatara UlnaBone · Solfatara3,64 %
Atomystique TephraStone · Atomystique2,96 %
Fumaroller ArtefactPrecious stone · Fumaroller2,96 %
Mofette TuffStone · Mofette2,76 %
Steam Crackler EggEgg · Steam Crackler2,68 %
Mother of Pearl BroochFrigost Island · Atomystique1,2 %
The Masked Avenger Map fragment 2/5Map fragment · Atomystique1 %
Bag of Eternal AshesContainer · Atomystique1 %
The Masked Avenger Map fragment 3/5Map fragment · Steam Crackler1 %
The Masked Avenger Map fragment 1/5Map fragment · Solfatara1 %
The Masked Avenger Map fragment 4/5Map fragment · Atomystique0,65 %
The Masked Avenger Map fragment 5/5Map fragment · Atomystique0,65 %
Soul capture and secret map
Capturing the soul of the Obsidemon
A Soul Stone for Huge Souls (captures up to level 200) suits the Obsidemon, who is level 160.
| Stone ingredient | Quantity |
|---|---|
| 10 | |
| 2 |
The secret map and the Inferno quest
The Obsidemon's Hypogeum Secret Key, dropped by the boss, gives access to a hidden map of the dungeon. The Inferno quest doesn't start with an NPC: use the key, beat the Enraged Maglob in a single fight, then bring the crate you find to Granny Capping. She requires you to have completed In Search of Al Ive and offers the Inferno Signal Carrier.
Where is the Obsidemon's Hypogeum?
In the Tears of Ouronigride, on Frigost, at . The nearest zaap is the one at Harebourg Castle Entrance ; you must have completed the Violent Grolander Wreck once to access the zone.
What level should you be for the Obsidemon's Hypogeum?
From level 150, comfortably at 160. The Obsidemon has 8,000 HP and its monsters 3,500 each.
How do you make the Obsidemon vulnerable?
Push one of your characters against it, with push damage. It becomes vulnerable for 3 turns; pushing a summon, or pushing it onto an ally, doesn't work.
Do you have to kill the Maglob?
Not necessarily: it reflects 150 damage with every hit. You can also gather the team within 7 RNG of it on turn 5, or make it Pacifist for that turn.
Why does the Obsidemon heal itself?
You pushed a monster against it. Objurgation then heals it for 2,000 HP and gives it 50 damage: only push your allies against it.
Which monster should you target first in the Obsidemon's Hypogeum?
The Atomystique, which resurrects the last dead monster; its death makes the resurrected one fall. The Solfatara, which heals its allies when hit, comes next.
Which quest should you do at the Obsidemon's Hypogeum?
Lavomatic, at Lavaz Za's, in front of the entrance , then For Whom the Belt Holds, with your city's agent in Frigost Village: both are completed on the Obsidemon.
Which stone should you use to capture the Obsidemon?
A Soul Stone for Huge Souls (captures up to level 200). The Obsidemon is level 160.
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