| Lunar Chest | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| Released | 20 March 2024 (Update) | ||||||||||||||||||
| Members | Yes | ||||||||||||||||||
| Quest | No | ||||||||||||||||||
| Location | Neypotzli | ||||||||||||||||||
| Options | Claim | ||||||||||||||||||
| Examine | It's decorated with fine stonework depictions of the moon in its various phases. | ||||||||||||||||||
| Map | |||||||||||||||||||
| Advanced data | |||||||||||||||||||
| Object ID | 51346 | ||||||||||||||||||
| Link | MOID | ||||||||||||||||||
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Unique drop sound effect |
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The sound that plays when receiving a unique drop.
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The Lunar Chest is a chest found in the Ancient Shrine within Neypotzli. It can be opened after defeating at least one of the Moons of Peril, although all Moons must be defeated once in order to unlock the chest for the first time. On average it takes approximately 320 openings in order to receive all uniques.
Loot mechanics
Defeating any one of the Moons of Peril grants the player a non-stackable 1/56 chance at a piece of their equipment: for example, defeating the Blood Moon will give a 1/56 chance at a piece of the Blood Moon armour set. If successfully rolled, a separate 1/(number of items in set not obtained yet)[1] roll is made to determine which remaining piece is given. As such, the player will not obtain duplicate pieces from a set until each piece in the set has been received at least once.
The Moons may be defeated alongside one another, with independent rolls being made for the respective unique items of each Moon defeated; it is possible to receive uniques from two or all three Moons in one chest. Defeating all three of the Moons of Peril will result in an overall chance of receiving at least one unique item of 1−(5556)3, (or 1/19).[2] The expected number of chests to complete all three sets is 320.
If a unique item is received, the standard loot table will not be rolled at all; otherwise, the table will be rolled a number of times depending on the number of Moons defeated:
- 1 Moon gives 1 roll
- 2 Moons give 3 rolls
- 3 Moons give 6 rolls
Calculations
Here are some values expressing how many chests you need to open to have a certain chance of getting the items.
| Odds | Specific Item[a] | Specific Set[b] | All Items[c] |
|---|---|---|---|
| ≥1% | 3 | 48 | 134 |
| ≥10% | 23 | 99 | 197 |
| ≥25% | 57 | 143 | 243 |
| ≥50% | 117 | 206 | 305 |
| ≥75% | 198 | 286 | 381 |
| ≥90% | 287 | 373 | 463 |
| ≥99% | 476 | 559 | 640 |
Rewards
The average Lunar Chest loot is worth 176,249.87 if all 3 Moons are defeated before opening the chest. Excluding uniques, the average loot is worth 43,645.88.
On average, each chest opening also provides 1470.75 prayer experience from the untradeable blessed bone shards and sun-kissed bones with blessed wine (or 2424.75 including Wyrmling bones) or 1764.9 with blessed sunfire wine (or 2909.7 including Wyrmling bones).
Uniques
The drop rates displayed below do not account for the duplicate protection system.
| Item | Quantity | Rarity | Price | High Alch | |
|---|---|---|---|---|---|
 | Eclipse atlatl | 1 | 1/224 | 661,594 | 96,000 |
 | Eclipse Moon helm | 1 | 1/224 | 822,808 | 61,800 |
 | Eclipse Moon chestplate | 1 | 1/224 | 1,493,378 | 174,006 |
 | Eclipse Moon tassets | 1 | 1/224 | 2,344,907 | 173,946 |
 | Dual macuahuitl | 1 | 1/224 | 5,041,238 | 174,006 |
 | Blood Moon helm | 1 | 1/224 | 812,022 | 61,800 |
 | Blood Moon chestplate | 1 | 1/224 | 3,666,593 | 174,006 |
 | Blood Moon tassets | 1 | 1/224 | 8,911,891 | 173,946 |
 | Blue Moon spear | 1 | 1/224 | 336,745 | 60,000 |
 | Blue Moon helm | 1 | 1/224 | 722,945 | 61,800 |
 | Blue Moon chestplate | 1 | 1/224 | 1,282,800 | 174,006 |
 | Blue Moon tassets | 1 | 1/224 | 3,606,374 | 173,946 |
Standard loot
| Item | Quantity | Rarity | Price | High Alch | |
|---|---|---|---|---|---|
 | Atlatl dart | 72–120 | 6 × 5/30 | 8,280–13,800 | 21,168–35,280 |
 | Blessed bone shards | 160–179 | 6 × 2/30 | Not sold | N/A |
 | Wyrmling bones | 42–54 (noted) | 6 × 1/30 | 24,024–30,888 | 42–54 |
 | Sun-kissed bones | 6–12 (noted) | 6 × 3/30 | Not sold | 576–1,152 |
 | Swamp tar | 79–119 | 6 × 4/30 | 316–476 | 0 |
 | Water orb | 30–45 (noted) | 6 × 2/30 | 28,980–43,470 | 5,400–8,100 |
 | Supercompost | 6–12 (noted) | 6 × 3/30 | 126–252 | 306–612 |
 | Soft clay | 15–25 (noted) | 6 × 3/30 | 1,830–3,050 | 15–25 |
 | Grimy harralander | 12–18 (noted) | 6 × 3/30 | 3,888–5,832 | 108–162 |
 | Grimy irit leaf | 12–18 (noted) | 6 × 1/30 | 15,924–23,886 | 120–180 |
 | Maple seed | 1–2 | 6 × 2/30 | 3,291–6,582 | 28–56 |
 | Yew seed | 1 | 6 × 1/30 | 21,647 | 85 |
Collection log
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% |
Transcript
| This article on scenery has an associated transcript page. Click here for the transcript. |
Changes
| Date | Changes |
|---|---|
| 3 April 2024 (Update) |
The opened version of the chest now also gives "Claim" option, so that multiple players can loot the chest at once. |
Notes
- ^ Calculated using stochastic matrices
- ^ Numerically determined using https://anydice.com/program/3fd3c
- ^ Numerically determined using https://anydice.com/program/3fd3d
References
- ^ "Varlamore Tweaks & Drop Rates". Old School RuneScape News. Jagex. 4 April 2024. Archived from the original. "In a move to enhance your looting experience, we've also implemented a duplication protection system. This means you won't receive duplicate items from a set until you've completed the set, ensuring a smoother progression towards collecting all set pieces."
- ^ "Undead Pirates, Colosseum Changes & more!". Old School RuneScape News. Jagex. 10 April 2024. Archived from the original. "Additionally, a clarification from last week's post: we made an error in our post last week with regards to the Perilous Moon drop rates. In it, we stated that each boss slain gave a 1/56 chance of obtaining its respective armour set, totalling a 3/56 (or ~1/18.67) chance for a unique. That much is correct! What's not correct is our statement that defeating all three bosses would provide an additional 1/56 roll at any item, for a total of 1/14. This is not the case and has never been the case, we just got some wires crossed with our post last week and can only apologise for that!" This is a correction made by Jagex after posting incorrect rates in a previous news post.