Doom of Mokhaiotl | OSRS Index

This fight takes place in an instance.

On death, all unprotected items will be moved to a grave outside the instance. Any items left on the ground will be lost.

This article has a strategy guide.

All information on mechanics and strategy will be on this page.

Delve 1Delve 2Delve 3Delve 4Delve 5Delve 6Delve 7Delve 8Deep Delve
Doom of Mokhaiotl



Released		23 July 2025 (Update)
Members		Yes
Combat level		558
Size		5x5
Examine		A demonic digger.
League region		Varlamore✓

Combat info

Attribute		Demon
XP bonus		+62.5%
Max hit		47 60 (charge)
Aggressive		Yes
Poisonous		Yes (venom)
Attack style		Melee, Magic, Ranged
Attack speed		6 ticks (3.6 seconds)

Combat stats


525	300	190	90	275	110

Aggressive stats


+210	+45	+125	+30	+120	+50

Melee defence


+300		+300		+60

Magic defence


+160			No elemental weakness

Ranged defence


+160		+160		+160

Immunities

Poison		0% resistance
Venom		Converts to poison
Cannons		Immune
Thralls		Not immune

Open in DPS calculator
Advanced data

Monster ID		14707
Link		MOID

Delve 1Delve 2Delve 3Delve 4Delve 5Delve 6Delve 7Delve 8Deep Delve
Doom of Mokhaiotl (Shielded)



Released		23 July 2025 (Update)
Members		Yes
Combat level		558
Size		5x5
Examine		It's protecting itself with a demonic shield!
League region		Varlamore✓

Combat info

Attribute		Demon
XP bonus		+62.5%
Max hit		60
Aggressive		Yes
Poisonous		Yes (venom)
Attack style		Melee, Magic, Ranged
Attack speed		6 ticks (3.6 seconds)

Combat stats


525	300	190	90	275	110

Aggressive stats


+210	+45	+125	+30	+120	+50

Melee defence


+300		+300		+60

Magic defence


+160			No elemental weakness

Ranged defence


+160		+160		+160

Immunities

Poison		100% resistance
Venom		100% resistance
Cannons		Immune
Thralls		Immune

Open in DPS calculator
Advanced data

Monster ID		14708
Link		MOID

Delve 5Delve 6Delve 7Delve 8Deep Delve
Doom of Mokhaiotl (Burrowed)



Released		23 July 2025 (Update)
Members		Yes
Combat level		758
Size		5x5
Examine		You can run, but it can dig.
League region		Varlamore✓

Combat info

Attribute		Demon
XP bonus		+62.5%
Max hit		99 (charge)
Aggressive		Yes
Poisonous		Yes (venom)
Attack style		Melee, Magic, Ranged
Attack speed		6 ticks (3.6 seconds)

Combat stats


625	300	190	90	275	110

Aggressive stats


+210	+45	+125	+30	+120	+50

Melee defence


+300		+300		+60

Magic defence


+160			No elemental weakness

Ranged defence


+160		+160		+160

Immunities

Poison		0% resistance
Venom		Converts to poison
Cannons		Immune
Thralls		Not immune
Freeze		100% resistance

Open in DPS calculator
Advanced data

Monster ID		14709
Link		MOID

The Doom of Mokhaiotl, also referred to as Osto-Ayak, is a giant insect-like, demonic boss found in the Ruins of Mokhaiotl, which is accessed during The Final Dawn quest, deep beneath the Tlati Rainforest.

The Doom is described as a delve boss, sharing similarities to RuneScape 3's streaking mechanics: upon defeating the Doom, it will descend deeper underground, with each "delve level" increasing the difficulty of the fight up to delve level 8. Players can also continue to deeper delves, which will have the same mechanics and difficulty as level 8. The initial delve levels are stated by the boss's developers to be comparable to the Corrupted Gauntlet, with the deepest delve levels requiring a good understanding of game mechanics and "the ability to stay cool when things get really, really tough".^[1]

Defeating the Doom of Mokhaiotl at deeper delve levels increases the chance to receive its unique drops, starting from delve 2, and an additional drop is added to the table until delve 4. The drop rate of these items will increase until delve 9, at which they are rolled at their highest possible rate.

After defeating the Doom, the player can choose to continue their pursuit or leave and claim their rewards. If the player descends into a deeper delve level and is killed by the Doom, they will forfeit all accumulated drops from that run. Claiming the rewards, dying to the boss, or teleporting out will reset the delve level back to 1. Attempting to delve deeper upon receiving a unique reward will prompt a warning message.

Drops from the Doom of Mokhaiotl include the Mokhaiotl cloth, used to upgrade the tormented bracelet into the confliction gauntlets, the eye of ayak, a 3-tick powered staff, and the avernic treads, a pair of hybrid boots with improved offensive and defensive bonuses over aranea boots and can be further upgraded with the Cerberus boots (primordial, eternal and pegasian) to create best-in-slot combat boots.

A scoreboard found in the lobby area leading up to the Doom can be found to the east side of the wall, recording the player and global records against the boss.

History

Known to the Old Ones as Osto-Ayak, which translates to "Under-Creature", the origin of the demonic insectoid is not known. What is known is that it was in a deep slumber beneath the earth, and was inadvertently awoken when construction of Mokhaiotl was well underway by human and dwarven refugees, who fled the mainland during the God Wars. The Kuhu sacrificed themselves to give the builders time to escape.^[2]

While various measures had already been put in place to protect the knowledge that would have been stored in Mokhaiotl, the Doom made no attempt to leave the premises, where it would remain isolated for an unknown amount of time, since the cavern had been sealed off and protective measures put in place, though it would consume anything unfortunate enough to disturb it, as indicated with various remains and carcasses scattered across its habitat.

Eventually, during the events of the Final Dawn, its rest is disturbed once again with the death of Metzli, Teokan of Ranul, and it presumably consumes her corpse after the adventurer, Prince Itzla Arkan, and Furia Tullus left Mokhaiotl, though it appears to have made no attempt to leave the surrounding area.

Fight overview

As a delve boss, pursuing the Doom of Mokhaiotl into deeper delve levels will increase the difficulty of the fight, up to delve level 8. In its most basic form (delve level 1), the Doom attacks with ranged and magic similar to that of the Leviathan; orbs from a distance, with blue being magic and green being ranged, blocked by praying before impact and a melee attack if directly next to it. Additionally, it will also use a rock throw attack which disables protection prayers upon shattering, then launching a magic or ranged projectile. Around a minute into the fight, it will then prepare a shockwave attack that the player must counter by making use of the volatile earth around the area.

As the player descends down the burrow hole, the Doom of Mokhaiotl's health slightly increases; the rest of its stats stay the same. Additionally, new mechanics are added and existing mechanics are enhanced upon, making the fight more challenging. After clearing delve 8, the player is awarded a "deep delve" count, and players can continue descending further down. These subsequent levels are level 8 in theory, though the Doom's health is reduced to 625 and hazards from previous levels continue to persist which practically make it more difficult.

Similar to Yama, players who die fighting the Doom are sent back to the lobby area instead of their respawn point, where their graves are also located. Players will have their reclamation fee reduced by 75% until they have 20 total delves, after which the standard death cost will apply.

Transportation

Players can use a Mokhaiotl waystone to teleport to the Ruins of Mokhaiotl.
Players can use Pendant of ates and teleport to the Kastori waystone and then run north-west.
Use a Quetzal whistle to fly to Tal Teklan, and then run east to the Tonali Cavern.
Once inside the Crypt of Tonali, players can search the chest to the west of the lift platform to collect two ancient teleporters to place in the cavern and shorten the speed to get back to the boss. The teleporters must be placed within 30 tiles of each other.

Money making

The following money making guides are available for Doom of Mokhaiotl:

Method	Hourly profit	Skills
Killing The Doom of Mokhaiotl (Delve 1-8)	11,619,889	90+ , 70+ , 90+ , recommended 80+ 77+ recommended
Killing the Doom of Mokhaiotl (Delve 1-16)	15,481,797	90+ , 70+ , 90+ , recommended 80+ 77+ recommended

Drops

The quantities for all drops below, aside from uniques, are shown for delve level 3, due to the drop table's unique nature. See the table in the "Mechanics" section to find how quantities vary with delve level.

The Doom reward interface.

After defeating the Doom of Mokhaiotl, it will burrow down into the next level. Upon interacting with the burrow hole the Doom leaves behind, players are shown a list of rewards and given the option to claim them and leave, or to risk them by continuing the pursuit.

Similarly to the Fortis Colosseum, unique drops become available after completing specific delve levels, and the rates of all eligible uniques have their drop rates increased as the player descends further down.

If the player completes a delve but leaves without claiming their loot, a chest across from the scoreboard can be searched to collect any unclaimed rewards.

Mechanics

Each delve level rolls once on the regular loot table (with additional guaranteed demon tears at certain delve levels), modifying them by using the following equation:

, where is the quantity received at delve and is the quantity multiplier as listed in the table below. removes anything after a decimal point, rounding up for negative numbers and down for positive ones.

As such, delve levels modify most of the common drops by rolling for an item, choosing a quantity as if it were level 3, multiplying it by the quantity multiplier at the given delve level, truncating the product, then adding it to the original quantity. For example, a player is equally likely to receive 2, 3, or 4 dragon platelegs at delve level 3. Delve level 2 has a -0.35x quantity multiplier, which gives possible quantities of 2, 2, and 3, respectively, meaning there is a 2/3 chance to receive two sets and a 1/3 chance to receive three sets.

For uniques, each one has a minimum delve level that must be completed in order for it to be rolled, with their drop rates increasing the deeper the delve level. If a unique drop is rolled (including Dom, if it has not been logged yet), a light will emerge from the burrow hole, and attempting to descend deeper will result in the player being warned if they intend to risk the item.


Delve level	Quantity multiplier	Guaranteed demon tears^[a]	Cumulative demon tears	Potential unique
1	-0.5	0	0	N/A
2	-0.35	0	0	Mokhaiotl cloth
3	0	50	50	Eye of ayak
4	0.05	60	110	Avernic treads
5	0.1	70	180	N/A
6	0.12	80	260	Dom
7	0.14	90	350	N/A
8	0.17	100	450	N/A
> 8	0.2	100	550+	N/A

^ In addition, if the player is carrying an Eye of Ayak that has been charged with demon tears, every floor cleared will silently add 10-20(random) charges

A graph that shows the unique item rates per delve level.

The drop rates for uniques increase with delve level as follows:


Delve level	Overall chance	Cumulative chance	Mokhaiotl cloth	Eye of ayak	Avernic treads	Dom
2	1/2,500	1/2,500	1/2,500 Cumulative: 1/2,500	N/A	N/A	N/A
3	1/1,000	~1/714	1/2,000 Cumulative: ~1/1,111	1/2,000 Cumulative: 1/2,000	N/A	N/A
4	1/450	~1/276	1/1,350 Cumulative: ~1/610	1/1,350 Cumulative: ~1/806	1/1,350 Cumulative: 1/1,350	N/A
5	1/270	~1/137	1/810 Cumulative: ~1/348	1/810 Cumulative: ~1/404	1/810 Cumulative: ~1/506	N/A
6	1/255	~1/89	1/765 Cumulative: ~1/239	1/765 Cumulative: ~1/264	1/765 Cumulative: ~1/305	1/1,000 Cumulative: 1/1,000
7	1/240	~1/65	1/720 Cumulative: ~1/179	1/720 Cumulative: ~1/193	1/720 Cumulative: ~1/214	1/750 Cumulative: ~1/429
8	1/210	~1/50	1/630 Cumulative: ~1/140	1/630 Cumulative: ~1/148	1/630 Cumulative: ~1/160	1/500 Cumulative: ~1/231
9	1/180	~1/39	1/540 Cumulative: ~1/111	1/540 Cumulative: ~1/116	1/540 Cumulative: ~1/123	1/250 Cumulative: ~1/120

Uniques

The drop rates for uniques increase with delve level. See the table above for exact rates at each level.

Item	Quantity	Rarity	Price	High Alch
Avernic treads	1	1/1,350–1/540^{[d 1]}	170,285,614	115,200
Eye of ayak (uncharged)	1	1/2,000–1/540^{[d 2]}	43,001,642	3,600,000
Mokhaiotl cloth	1	1/2,500–1/540^{[d 3]}	Not sold	120,000

^ Only dropped upon completion of delve level 4 and deeper.
^ Only dropped upon completion of delve level 3 and deeper.
^ Only dropped upon completion of delve level 2 and deeper.

Weapons and armour

Item	Quantity	Rarity	Price	High Alch
Dragon med helm	1 (noted)	5/104	58,090	60,000
Dragon platelegs	2–4 (noted)	1/104	322,052–644,104	324,000–648,000
Mystic earth staff	1 (noted)	5/104	24,922	25,500
Rune pickaxe	1–3 (noted)	5/104	18,637–55,911	19,200–57,600

Runes and ammunition

Item	Quantity	Rarity	Price	High Alch
Death rune	50–70	5/104	9,250–12,950	5,400–7,560
Chaos rune	50–70	5/104	5,300–7,420	2,700–3,780
Earth rune	500–1,000	5/104	2,500–5,000	1,000–2,000
Fire rune	500–1,000	5/104	2,500–5,000	1,000–2,000
Steel cannonball	200–600	5/104	54,400–163,200	600–1,800
Onyx bolts	5–15	5/104	41,670–125,010	40,895–122,685

Ores

Item	Quantity	Rarity	Price	High Alch
Coal	15–50 (noted)	5/104	2,190–7,300	405–1,350
Gold ore	20–60 (noted)	5/104	2,880–8,640	1,800–5,400
Runite ore	3–6 (noted)	5/104	30,675–61,350	5,760–11,520

Seeds

Item	Quantity	Rarity	Price	High Alch
Celastrus seed	1	3/104	16,427	324
Ranarr seed	1–3	2/104	28,028–84,084	30–90
Spirit seed	1	3/104	Not sold	0

Resources

Item	Quantity	Rarity	Price	High Alch
Aether catalyst	151–400	5/104	50,887–134,800	18,120–48,000
Dragon dart tip	30–90	5/104	36,660–109,980	4,500–13,500
Raw shark	20–35 (noted)	10/312	14,360–25,130	2,040–3,570
Shark lure	40–70^{[d 1]}	5/312	11,640–20,370	240–420
Sun-kissed bones	18–75	5/104	Not sold	1,728–7,200

^ Only drop in even-numbered quantities (on wave 3).

Other

Item	Quantity	Rarity	Price	High Alch
Tooth half of key (moon key)	1	1/104	Not sold	60
Demon tear	100–300	7/104	30,200–90,600	30,000–90,000
Mokhaiotl waystone	1–2	7/104	39,982–79,964	6,000–12,000
Clue scroll (elite)	1	1/75; 1/50^{[d 1]}	Not sold	12
Dom	1	1/1,000–1/250^{[d 2]}	Not sold	N/A

^ 1/75 at delve levels 1 and 2, 1/50 afterwards.
^ 1/1000 at delve level 6, 1/750 at delve level 7, 1/500 at delve level 8, and 1/250 at delve level 9 and beyond.

Tertiary

	Item	Quantity	Rarity	Price	High Alch
	Demon tear	50^{[d 1]}	Always	15,100	15,000

^ Tears are guaranteed upon completion of delve level 3 and deeper. Level 3 gives 50 tears, and each subsequent delve gives 10 additional tears up to a maximum of 100 tears starting at level 8.

Loot calculator

This dynamic calculator requires JavaScript.

This page takes user input via JavaScript and may use changing prices from the Grand Exchange Market Watch.

module=Doom of Mokhaiotl loot
form=DoMForm
result=DoMResult
param = max_delve|Maximum delve level|1|int|0-544
autosubmit = disabled

Please input the data and submit the form.

To calculate personal completions, see here.

Combat Achievements

There are 15 Combat Achievement tasks (totalling 79 points) available for Doom of Mokhaiotl.

Name	Description	Type	Tier	Comp%
Doom Adept	Defeat the Doom of Mokhaiotl at delve level 3.	Kill Count	Elite (4 pts)	12.3%
Doom Crawler	Defeat the Doom of Mokhaiotl level 1 in less than 30 seconds.	Speed	Elite (4 pts)	2.7%
Exposed Doom	Defeat the Doom of Mokhaiotl during its Melee charge phase.	Mechanical	Elite (4 pts)	11%
Mokhaiotl Drift	Defeat the Doom of Mokhaiotl at level 8 or above before he finishes the first burrow phase.	Mechanical	Master (5 pts)	2.9%
Grub Patrol	Defeat the Doom of Mokhaiotl levels 1-8 without ever letting a grub be absorbed.	Mechanical	Master (5 pts)	3.1%
Doom Chaser	Defeat the Doom of Mokhaiotl levels 1-8 in less than 10:00.	Speed	Master (5 pts)	2.5%
Mine's Better	Defeat the Doom of Mokhaiotl levels 1-8 whilst always wearing a shield.	Restriction	Master (5 pts)	0.9%
Doom Veteran	Defeat the Doom of Mokhaiotl at delve level 8.	Kill Count	Master (5 pts)	5.2%
Duel of Mokhaiotl	Defeat the Doom of Mokhaiotl levels 1-8 whilst only damaging the boss with one-handed melee attacks.	Restriction	Grandmaster (6 pts)	0.7%
Darkness Is Your Ally?	Defeat the Doom of Mokhaiotl levels 1-8 without equipping a demonbane weapon.	Restriction	Grandmaster (6 pts)	1.1%
Perfect Doom	Defeat the Doom of Mokhaiotl levels 1-8 without taking any damage from the boss, letting any grubs be absorbed, or stepping in acid blood.	Perfection	Grandmaster (6 pts)	1.1%
The Praying Mantis	Defeat the Doom of Mokhaiotl levels 1-8 without restoring your prayer points through any method.	Restriction	Grandmaster (6 pts)	1.1%
Doom Racer	Defeat the Doom of Mokhaiotl levels 1-8 in less than 7:15.	Speed	Grandmaster (6 pts)	0.6%
It's Dark Down Here	Defeat the Doom of Mokhaiotl at delve level 16.	Stamina	Grandmaster (6 pts)	1.5%
Mopping up	Clear at least 8 acid splats in a single Volatile Earth special attack.	Mechanical	Grandmaster (6 pts)	2.7%

Gallery

Concept art of the Doom of Mokhaiotl, by Mod Jerv.
Mod Jerv's early concepts for the Doom of Mokhaiotl, taking heavy inspiration from aggressive mimicry in nature.
Concept art of the arena, by Mod Jerv.
Official artwork of the Doom of Mokhaiotl, by Mod Jerv.

Changes

Date	Changes
6 May 2026 (Update)	During the orb phase of the Doom of Mokhaiotl, striking a volatile earth with double-hitting weapons will no longer cause the orb to spawn and despawn.
1 October 2025 (Update)	Sunfire splinters have been removed from the Doom of Mokhaiotl's loot table.
3 September 2025 (Update)	Combat Achievements have been added for the Doom of Mokhaiotl. As criteria for the Doom's speed tasks were tracked on release, these were automatically completed upon opening the Combat Achievements interface. The "Attack" option on all volatile earth is now hidden when the earthen shield spawns. The "Attack" option on demonic larvae is now hidden until their spawn animation finishes.
20 August 2025 (Update)	Standard attacks from the Doom after a melee punish will now take into account rock throw projectiles, ensuring that two styles will never overlap (i.e. a melee projectile when a magic projectile from the rock throw is inbound). This still means that there are two attacks of the same style inbound if the player melee punishes too early, thus missing the prayer will result in the full impact of both attacks. Attacks that are nulled during the transition to the Doom's shielded form will now instead count as damage towards the shield, even if the damage came from a non-demonbane weapon. A bug in which the Doom's burrowed form deals trample damage whilst zooming diagonally, even if the player is not standing within its path, has been fixed. Rocks which fall when the Doom begins to burrow will no longer disappear when landing on acid blood. Players will no longer get pushed out-of-bounds when the burrow hole spawns in a corner. The burrow hole will no longer sparkle when a player receives a duplicate pet drop.
13 August 2025 (Update)	Further altered the shape of the Ranged projectile to ensure it appears noticeably different to Melee. Fixed a bug where valuable loot drops received from the Doom of Mokhaiotl did not broadcast to the clan chat.
8 August 2025	Hotfix The Doom's transition to the shielded phase is now triggered by his attack timer instead of on-hit. To avoid instant phase transitions, he will also wait for 2 attacks after the last orb phase before triggering the shield. The Doom can no longer heal unintentionally after firing his beam. Giant larvae will now stay in place when KO damage is incoming, to match the behaviour of small larvae.
7 August 2025	Hotfix The holy water effect should now be guaranteed when killing the boss during the melee punish phase. To prevent a bug that allowed the Doom to start a melee punish phase before switching to the blue shield phase a few ticks later, the beam charge during the melee punish phase can no longer be interrupted by grub damage. Larvae no longer despawn and persist into the car phase. The surge potion cooldown timer now pauses between delve levels. Fixed a bug that caused some projectile attacks to be nullified when the Doom switched from the melee punish to the blue shield phase. Fixed a bug that caused larvae spawning in to have an expanded clickbox that could overlap with volatile earth.
6 August 2025	Hotfix Re-equipping the lightbearer between delve levels no longer causes special attack energy to resume regenerating. Giant demonic larvae will no longer incur attack delays even when using demonbane weapons.
6 August 2025 (Update)	Loot: Elite clue scrolls have been added to the drop table, with a drop rate of 1/75 for delve levels 1 and 2, and a drop rate of 1/50 for delve levels 3+. The burrow hole will now glow yellow when a unique item has been rolled. Unclaimed loot from the burrow hole can now be retrieved from a chest in the lobby if players leave before claiming loot. The loot interface can now also be accessed from further away. Special Beam Cannon/melee punish: The charging effects were slightly shrunken to reduce the chance of misclicking. Firing of the Special Beam Cannon has been delayed by one tick (0.6s). The standard attack delay has been removed if the player is about to perform a melee punish. Recurrent damage from a melee punish will now trigger the holy water effect if it results in the Doom's defeat. The holy water effect will now restore a flat amount of 32 Hitpoints, 24 prayer points, and 25% special attack energy. Previously, they would restore players to 49 health and prayer points if they were lower than that. Demonic larvae: Triple larvae spawns at delve levels 8+ have been replaced with a single giant demonic larva that has doubled health, a larger explosion radius, and tripled penalties if allowed to reach the Doom. Larvae will now try to spawn further away from the boss in addition to spawning on the same side as the player. Melee larvae will now only appear during the shield phase. Ranged larvae will now be one-shot when attacking with holy water equipped Magic larvae will now be one-shot when attacking with the Eye of Ayak, which also now grants the attack delay-removing effect given by demonbane weapons. Shockwave: Permanent rocks from the Rock Throw attack will no longer appear if the player is struck by it whilst under the protection of the earthen shield. The centre tile of the earthen shield will now remove any acid blood in its path. Other: The bone dagger's special attack now correctly guarantees a hit against the Doom when used on the first hit: Special attack energy no longer regenerates when the Doom is not present. The current delve level now appears in the Doom's health overlay, if enabled. The Doom's clickbox has been adjusted to help prevent players from clicking through it when they intended to attack. Rock Throw attacks are now less likely to be used in succession. The colour of the melee projectiles has been adjusted to be clearer for players with visual impairments. The dwarven multicannon can no longer be placed in the delve level 1 area.
30 July 2025 (Update)	Demonbane spells now benefit from reduced attack delay on demonic larvae. A bug causing loot from previous waves to not always appear in the 'Investigate' interface has been fixed. The clickbox for volatile earth nodes no longer appear before their spawn animation has finished. Clan broadcasts will now only trigger for waves 1-8 for a player's personal best rather than on every completion. The size of the beam charge-up effect has been reduced to help prevent misclicks.
29 July 2025 (Update)	Hotfix Rocks present underneath the boss when it performs its slam during the Burrow attack will now be destroyed after the boss has slammed.
24 July 2025 (Update)	Hotfix The protective effects offered by the earthen shield will now last one tick longer.

Development history

The Doom's rewards underwent multiple iterations and revisions due to player feedback. The following is a list of scrapped rewards:

Trivia

The examine text is a reference to the demon spade, a proposed reward from the Doom that was initially pitched as the "demonic digger" before being renamed. The spade was later scrapped.
The Doom's design was inspired by in-game demons, the praying mantis, and aggressive mimicry, a form of mimicry used by predators to lure in prey.^[3]
If the player receives multiple Dom pet drops in one delve, when loot is claimed, the collection log will only add 1 pet to the log instead of the actual amount received.^[4]
Similarly to Yama, the Doom's killcount is counted differently; rather than kill count, it is "delves completed" and "deep delves completed".
- Unlike any other boss in Old School RuneScape, the actual "kill count" is the amount of deep delves completed; because of this, the kill count will not show in the player's HiScores until they have completed five deep delves. Since all drops are available on delve 6 and deeper, it is possible to complete the entire log without ever getting a proper kill count for the boss, a trait that it shares with the Chaos Elemental.
The Doom had a festive override wearing a santa hat during the 2025 Christmas event.

References

^ "Varlamore: The Final Dawn Out Now". Old School RuneScape News. Jagex. 23 July 2025. Archived from the original.
^ In The Final Dawn. "Stone tablet (The Final Dawn)". Old School RuneScape. "Mokhaiotl has fallen. We awoke something, deep beneath the archive. Now everything is lost. [...] Mokhaiotl may be gone, but we have to make sure something remains. Their last act was one of sacrifice. We have to honour them. We have to remember them."
^ Mod Jerv. "Osto-Ayak, the Doom of Mokhaiotl". Reddit. 4 August 2025. Archived from the original on 21 July 2026. Mod Jerv: "We wanted the design to be insectoid and demonic, and I tried a few different routes and sent them Mack’s way to see if any caught momentum and inspiration. I took inspiration from demons in game, a Praying Mantis and aggressive mimicry for the the final boss design! A lot of back and forth with animation to ensure the process of creating would be optimal."
^ Gregkow. "Jagex just scammed me out of a Dom pet, details in post". Reddit. 28 July 2025. Archived from the original on 21 July 2026.

Doom of Mokhaiotl

Monsters

Signature drops

	Demon tear Mokhaiotl waystone Mokhaiotl cloth Dom
Equipment	Eye of ayak Confliction gauntlets
Avernic treads	Normal Primordial Pegasian Eternal Primordial-Pegasian Primordial-Eternal Pegasian-Eternal Max

Bosses

World bosses

	The Hueycoatl Scurrius Giant Mole Deranged archaeologist Sarachnis Kalphite Queen Corporeal Beast Gemstone Crab
The Barrows Brothers	Ahrim the Blighted Karil the Tainted Dharok the Wretched Guthan the Infested Torag the Corrupted Verac the Defiled
The Dagannoth Kings	Dagannoth Prime Dagannoth Rex Dagannoth Supreme
God Wars Dungeon	Kree'arra Commander Zilyana General Graardor K'ril Tsutsaroth Nex
Moons of Peril	Eclipse Moon Blue Moon Blood Moon
The Wilderness bosses	Revenant maledictus Chaos Fanatic Crazy archaeologist Scorpia King Black Dragon Chaos Elemental Vet'ion (Calvar'ion) Venenatis (Spindel) Callisto (Artio)

Instanced bosses

	Amoxliatl Brutus (Demonic) Royal Titans (Branda the Fire Queen) (Eldric the Ice King) Zulrah Vorkath Phantom Muspah The Nightmare (Phosani's Nightmare) Yama Doom of Mokhaiotl Maggot King Mad Angel
Sporadic bosses	Obor Bryophyta The Mimic Hespori Skotizo
The Forgotten Four	The Leviathan The Whisperer Vardorvis Duke Sucellus

Slayer bosses

Minigame bosses

Skilling bosses

Raids

Chambers of Xeric	Tekton Vanguard Vespula Vasa Nistirio Muttadile Great Olm
Theatre of Blood	The Maiden of Sugadinti Pestilent Bloat Nylocas Vasilias Sotetseg Xarpus Verzik Vitur
Tombs of Amascut	Akkha Ba-Ba Kephri Zebak Tumeken's Warden Elidinis' Warden

v t e Demons
Standard demons	Imp ^{(Castle Wars) (Champion) (Defender) (Scarred) (Yama)} Lesser demon ^(Champion) ^(Scar) ^(Scarred) Greater demon ^(POH) ^(Scarred) Black demon ^(Scarred)
Quest demons	Delrith Agrith-Naar ^{(Nightmare Zone)} Black demon (The Grand Tree) ^{(Nightmare Zone)} Kolodion Porazdir Doomion Holthion Othainian Bouncer ^{(Nightmare Zone)} Skeleton Hellhound ^{(Nightmare Zone)} Chronozon ^{(Nightmare Zone)} Nezikchened ^{(Nightmare Zone)} Jungle Demon ^{(Nightmare Zone)} Judge of Yama Tormented Demon Duke Sucellus
Slayer demons	Bloodveld Insatiable Bloodveld Mutated Bloodveld Insatiable mutated Bloodveld Nechryael ^{(Death spawn)} Greater Nechryael Nechryarch ^{(Chaotic death spawn)} Abyssal demon Greater abyssal demon Abyssal Sire Hellhound ^(Scarred) Cerberus
Fiends	Icefiend Pyrefiend Pyrelord Flaming pyrelord Infernal pyrelord Waterfiend
Revenants	Revenant imp Revenant pyrefiend Revenant hellhound Revenant demon
Personalities	Achtryn Alathazdrar Carrot Jim Lithil Mazchna Sageguard Melacar Sageguard Vandred Sergeant Damien Thammaron Voice of Yama Yama Zimberfizz
God Wars Dungeon	K'ril Tsutsaroth Balfrug Kreeyath Zakl'n Gritch Tstanon Karlak
Other	Implings Hell-Rat ^(Behemoth) Hellhound ^(POH) Arzinian Being of Bordanzan Blood Reaver Chocolate demon Demon of Light Demon of Balance Demon of Darkness Judge of Yama Skotizo Zalcano Tortured gorilla Demonic gorilla Ice demon Ripper Demon Doom of Mokhaiotl
Pets	Abyssal orphan Baron Hellcat Hellpuppy K'ril Tsutsaroth Jr. Skotos Smolcano Yami Dom
Demonic ashes	Fiendish ashes Vile ashes Malicious ashes Abyssal ashes Infernal ashes

Source site	Old School RuneScape Wiki
Canonical source	Doom of Mokhaiotl
Content license	CC BY-NC-SA 3.0
License status	declared
Picture	Doom of Mokhaiotl · file details