Moons of Peril

This article has a strategy guide. All information on mechanics and strategy will be on this page.

This is a dangerous activity. On death, Hardcore Ironmen will lose their status. Unprotected items will be moved to a grave.

Eclipse MoonBlue MoonBlood Moon

Moons of Peril
Released								20 March 2024 (Update)
Type								Boss
Members								Yes
Location								Neypotzli
Participants								1
Map

The Moons of Peril are three nagua bosses imprisoned in Neypotzli, a prison located beneath Cam Torum. Aimed at mid-level players of at least level 75 combat, players may fight each boss one-by-one, using the powerful resources within Neypotzli to restock inbetween fights. Completing the Perilous Moons quest acts as an introduction to Neypotzli and the bosses, and is required to fight them.

During the time of the Old Ones, the Moons of Peril were summoned by a powerful shaman facing imminent death, and wished to inflict the same on others. Her companions disapproved, and created Neypotzli to imprison her and the three nagua, and summoned Eyatlalli, a nagua of earth and stream, to keep them in check.

The Moons of Peril are popular for mid-level players due to their fairly generous resource rewards (especially for ironmen) and the armour sets, while the free resources given in-between fights reduce the cost of fighting them. In particular, the blood moon set gives valuable melee strength bonus, serving as a stepping-stone towards Bandos armour.

The player's trip into Neypotzli begins in the antechamber, expanding outwards along three accessible entrances. Each of these - the Streambound Cavern, Earthbound Cavern, and the Ancient Prison - have different resources where players can create food and potions that are more powerful than even the best found outside; as such, it is highly recommended to gather supplies from within these caverns rather than bringing in supplies from outside. Campsites around the three areas will also have supply crates that store the required tools to gather resources, and cooking stoves to cook food and fully restore run energy.

Once the player is ready, they can proceed to face the Moons of Peril; the three bosses share a unique mechanic where their basic attack will hit three times, each dealing more damage than the last; however, if one hit misses, the remainder will as well. This means having good defence bonuses will result in less damage taken overall. Protection prayers will not do anything against any of their attacks.

While they can be fought by multiple players simultaneously, the boss's health is tied to individual players, meaning each player will effectively have to deal all damage on their own. Ironmen are thus eligible for full rewards.

Comparing the defensive stats of each of the Moons of Peril shows that each has a lower defence bonus against a specific melee style:

• Eclipse Moon - vulnerable to stab
• Blood Moon - vulnerable to slash
• Blue Moon - vulnerable to crush

Additionally, each Moon has an elemental weakness to air, however melee is still recommended due to their very high Magic defence of +500.

Monster	Combat Level	Hitpoints	Stab Def	Slash Def	Crush Def	Flat Armour	Elemental Weakness	Weakness %
Eclipse Moon	329	500	0	100	100	4	Air	15
Blood Moon	329	500	100	0	100	-2	Air	15
Blue Moon	329	500	100	100	0	-5	Air	15

The following money making guides are available for Moons of Peril:

Method	Hourly profit	Skills
Moons of Peril	1,727,582	70+ , 70+ , 70+ recommended for Melee 70+ recommended for Piety 20+ to catch Moss lizards 30+ to cook Cooked moss lizard 38+ to make Moonlight potions 50+ 50+ 50+ strongly recommended
Killing Blood Moon	1,668,002	75+ , 75+ , 75+ 70+ recommended for Piety. 20+ to catch Moss lizards. 30+ to cook Cooked moss lizard. 38+ to make Moonlight potion.

Like the Barrows, the rewards earned are based on how many Moons of Peril are subdued. At least one Moon must be subdued to open the Lunar Chest, which resets each time the chest is opened.

• Blood moon armour - a set of melee equipment with the Bloodrager set effect.
• Blue moon armour - a set of magic equipment with the Frostweaver set effect.
• Eclipse moon armour - a set of ranged equipment with the Eclipse set effect.

Eyatlalli will accept certain items found inside Neypotzli in exchange for extra rewards. (See article: Eyatlalli)

Note: Using a piece of the Blood, Blue, or Eclipse moon equipment on Eyatlalli will give the option to sacrifice it for a ~1/50 chance at another equipment roll; players can receive the same item they sacrificed.

Atlatl darts may be looted regardless of which of the Moons have been subdued.

The Moons of Peril have 13 collection log items.

Item	Collections	Comp%
Blue Moon spear	Moons of Peril	18.5%
Atlatl dart	Moons of Peril	51.7%
Dual macuahuitl	Moons of Peril	18.9%
Eclipse atlatl	Moons of Peril	18.2%
Eclipse Moon chestplate	Moons of Peril	13.5%
Eclipse Moon tassets	Moons of Peril	12.3%
Eclipse Moon helm	Moons of Peril	15.3%
Blue Moon chestplate	Moons of Peril	14.2%
Blue Moon tassets	Moons of Peril	12.9%
Blue Moon helm	Moons of Peril	15.9%
Blood Moon chestplate	Moons of Peril	14.2%
Blood Moon tassets	Moons of Peril	13.2%
Blood Moon helm	Moons of Peril	15.9%

There are 12 Combat Achievement tasks (totalling 33 points) available for the Moons of Peril.

Name	Description	Type	Tier	Comp%
Perilous Novice	Open the Reward Chest 5 times.	Kill Count	Medium (2 pts)	50.9%
Lunar Triplet	Open the Reward Chest after defeating all three Moons.	Kill Count	Medium (2 pts)	59.1%
Moons of Peril Speed-Trialist	Defeat all three Moons in one run in under 8 minutes.	Speed	Medium (2 pts)	48.5%
Back to Our Roots	Defeat all three Moons in one run by only attacking with a Dragon Scimitar.	Restriction	Medium (2 pts)	34.3%
The Clone Zone	Defeat the Eclipse moon by only attacking its clones.	Mechanical	Hard (3 pts)	37.4%
Betrayal	Defeat a Moon using its associated weapon drop.	Restriction	Hard (3 pts)	32.1%
Fortified	Defeat a Moon without consuming any supplies.	Restriction	Hard (3 pts)	48.9%
Perilous Dancer	Defeat all the Moons in one run while only taking damage from regular attacks.	Perfection	Hard (3 pts)	31.1%
Perilous Champion	Open the Reward Chest 25 times.	Kill Count	Hard (3 pts)	43.2%
Moons of Peril Speed-Chaser	Defeat all three Moons in one run in under 6 minutes.	Speed	Hard (3 pts)	41.8%
Fat of the Land	Defeat 30 Moons of Peril bosses without leaving the dungeon.	Stamina	Hard (3 pts)	42.1%
High Hitter	Defeat a Moon before they start their second special attack.	Mechanical	Elite (4 pts)	52.4%

• 
  A group of players fighting the Eclipse Moon of Peril.
• 
  A group of players fighting the Blue Moon of Peril.
• 
  A group of players fighting the Blood Moon of Peril.

• 
  Concept art of the Moons of Peril, by Mod Skylark.
• 
  Concept art of the Eclipse Moon's chamber, by Mod Jerv.
• 
  Concept art of the Blue Moon's chamber, by Mod Jerv.
• 
  Concept art of the Blood Moon's chamber, by Mod Jerv.
• 
  Concept art of the ancient shrine, by Mod Jerv.

• The Moons of Peril's spawn animation, by Mod Hend.
• The Moons of Peril's melee attack, by Mod Hend.
• An unused animation for a magic attack, by Mod Hend.

• The Moons of Peril was originally conceived from an unshared project Mod West and Mod Skylark made as part of Game Jam.
• Within 36 hours of release, players spent 7,967,123,490 reclaiming items from their gravestone.^[1]
  • Within a week of release, players spent 11,382,239,258 reclaiming items from their gravestone.