Ancient chest

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ClosedOpened
Crystal
Released5 January 2017 (Update)
MembersYes
QuestNo
LocationGreat Olm's room, Chambers of Xeric
League regionKourend Kourend✓
OptionsNone
ExamineThere seems to be something locked in the heart of the crystal.
Map
Advanced data
Object ID30027
LinkMOID

The ancient chest is found in the Great Olm's room in the Chambers of Xeric raid, and can be searched for rewards after defeating the Great Olm. If players leave the Chambers without looting the reward chest, any unclaimed regular loot is placed on the ground upon leaving the raid.

The lootbeam alternating between purple and green, indicating the player received both a unique drop and a twisted kit

Depending on what the player obtains, the light shining down on the chest will vary in colour:

  • A white light indicates the player has not received a unique. This will always consist of two different drops; they cannot be the same.
  • A purple light indicates that the player has received a unique drop.
  • A turquoise light indicates that the player has received the metamorphic dust drop.
  • A green light indicates that the player has received the twisted ancestral colour kit drop.

If multiple rolls on special items are successfully rolled, then the light will alternate between the available colours.

Loot table

Players will always find a dark journal inside unless it is stored in their bank.

Unique drop table

Upon the Great Olm's death, if a unique reward item is given, it will be announced in the game chat.

For every 8,676 total points obtained, a 1% chance to obtain a unique loot is given. If one of these items is received, no common rewards are given.

This chance is capped at 65.7% (570,000 points) - any further points will be sent to roll for a second unique loot. For example, a team who possesses 855,000 points in total has a 65.7% chance to receive a unique loot, and then a 32.85% chance to obtain a second unique loot.[1] Up to six unique rewards can be obtained per raid, assuming that there are enough points to roll for them.

In groups, the player's points will also determine who is more likely to obtain the unique drop if rolled on, with higher points giving a greater chance at it.

Once the game has chosen which player will receive the unique loot, an item is chosen from the table below. The higher the weighting, the more likely a player will receive that item.

Item Quantity Rarity Price High Alch
Dexterous prayer scroll.png: Ancient chest drops Dexterous prayer scroll with rarity 20/69 in quantity 1Dexterous prayer scroll120/69[2]18,703,30748,000
Arcane prayer scroll.png: Ancient chest drops Arcane prayer scroll with rarity 20/69 in quantity 1Arcane prayer scroll120/69[2]5,843,05248,000
Twisted buckler.png: Ancient chest drops Twisted buckler with rarity 4/69 in quantity 1Twisted buckler14/69[2]13,916,80854,000
Dragon hunter crossbow.png: Ancient chest drops Dragon hunter crossbow with rarity 4/69 in quantity 1Dragon hunter crossbow14/69[2]32,193,28548,000
Dinh's bulwark.png: Ancient chest drops Dinh's bulwark with rarity 3/69 in quantity 1Dinh's bulwark13/69[2]12,311,487336,000
Ancestral hat.png: Ancient chest drops Ancestral hat with rarity 3/69 in quantity 1Ancestral hat13/69[2]44,571,60027,000
Ancestral robe top.png: Ancient chest drops Ancestral robe top with rarity 3/69 in quantity 1Ancestral robe top13/69[2]104,570,91672,000
Ancestral robe bottom.png: Ancient chest drops Ancestral robe bottom with rarity 3/69 in quantity 1Ancestral robe bottom13/69[2]72,384,31048,000
Dragon claws.png: Ancient chest drops Dragon claws with rarity 3/69 in quantity 1Dragon claws13/69[2]40,820,632123,000
Elder maul.png: Ancient chest drops Elder maul with rarity 2/69 in quantity 1Elder maul12/69[2]97,115,472300,006
Kodai insignia.png: Ancient chest drops Kodai insignia with rarity 2/69 in quantity 1Kodai insignia12/69[2]54,899,80390,000
Twisted bow.png: Ancient chest drops Twisted bow with rarity 2/69 in quantity 1Twisted bow12/69[2]1,426,657,4132,400,000

Common drop table

If no unique drops are rolled or not given to the player, they will make two rolls on the common drop table. Unlike the other two raids, the two rolls cannot end on the same drop.

Runes and ammunition

Item Quantity Rarity Price High Alch
Death rune.png: Ancient chest drops Death rune with rarity 2 × 1/33 in quantity 1-3640Death rune1–3,6402 × 1/33188–684,320108–393,120
Blood rune.png: Ancient chest drops Blood rune with rarity 2 × 1/33 in quantity 1-4095Blood rune1–4,0952 × 1/33375–1,535,625240–982,800
Soul rune.png: Ancient chest drops Soul rune with rarity 2 × 1/33 in quantity 1-6553Soul rune1–6,5532 × 1/33381–2,496,693180–1,179,540
Rune arrow.png: Ancient chest drops Rune arrow with rarity 2 × 1/33 in quantity 1-9362Rune arrow1–9,3622 × 1/3347–440,014240–2,246,880
Dragon arrow.png: Ancient chest drops Dragon arrow with rarity 2 × 1/33 in quantity 1-648Dragon arrow1–6482 × 1/331,734–1,123,632480–311,040

Herbs

Item Quantity Rarity Price High Alch
Grimy ranarr weed.png: Ancient chest drops Grimy ranarr weed with rarity 2 × 1/33 in quantity 1-138 (noted)Grimy ranarr weed1–138 (noted)2 × 1/33[d 1]5,270–727,26018–2,484
Grimy toadflax.png: Ancient chest drops Grimy toadflax with rarity 2 × 1/33 in quantity 1-210 (noted)Grimy toadflax1–210 (noted)2 × 1/33[d 2]1,893–397,53011–2,310
Grimy irit leaf.png: Ancient chest drops Grimy irit leaf with rarity 2 × 1/33 in quantity 1-675 (noted)Grimy irit leaf1–675 (noted)2 × 1/33[d 2]1,263–852,52510–6,750
Grimy avantoe.png: Ancient chest drops Grimy avantoe with rarity 2 × 1/33 in quantity 1-337 (noted)Grimy avantoe1–337 (noted)2 × 1/33[d 2]1,362–458,99410–3,370
Grimy kwuarm.png: Ancient chest drops Grimy kwuarm with rarity 2 × 1/33 in quantity 1-289 (noted)Grimy kwuarm1–289 (noted)2 × 1/33[d 2]1,854–535,80612–3,468
Grimy snapdragon.png: Ancient chest drops Grimy snapdragon with rarity 2 × 1/33 in quantity 1-84 (noted)Grimy snapdragon1–84 (noted)2 × 1/33[d 1]7,334–616,05612–1,008
Grimy cadantine.png: Ancient chest drops Grimy cadantine with rarity 2 × 1/33 in quantity 1-330 (noted)Grimy cadantine1–330 (noted)2 × 1/33[d 2]2,115–697,95013–4,290
Grimy lantadyme.png: Ancient chest drops Grimy lantadyme with rarity 2 × 1/33 in quantity 1-442 (noted)Grimy lantadyme1–442 (noted)2 × 1/33[d 2]1,234–545,42813–5,746
Grimy dwarf weed.png: Ancient chest drops Grimy dwarf weed with rarity 2 × 1/33 in quantity 1-546 (noted)Grimy dwarf weed1–546 (noted)2 × 1/33[d 2]1,345–734,37014–7,644
Grimy torstol.png: Ancient chest drops Grimy torstol with rarity 2 × 1/33 in quantity 1-134 (noted)Grimy torstol1–134 (noted)2 × 1/33[d 1]2,992–400,92815–2,010
  1. ^ 1.0 1.1 1.2 33% of these herbs will drop as seeds instead (at a rate of 7 herbs per seed).
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 33% of these herbs will drop as seeds instead (at a rate of 8 herbs per seed).

Ores and gems

Item Quantity Rarity Price High Alch
Silver ore.png: Ancient chest drops Silver ore with rarity 2 × 1/33 in quantity 1-6553 (noted)Silver ore1–6,553 (noted)2 × 1/3361–399,73345–294,885
Coal.png: Ancient chest drops Coal with rarity 2 × 1/33 in quantity 1-6553 (noted)Coal1–6,553 (noted)2 × 1/33147–963,29127–176,931
Gold ore.png: Ancient chest drops Gold ore with rarity 2 × 1/33 in quantity 1-2978 (noted)Gold ore1–2,978 (noted)2 × 1/33145–431,81090–268,020
Mithril ore.png: Ancient chest drops Mithril ore with rarity 2 × 1/33 in quantity 1-4095 (noted)Mithril ore1–4,095 (noted)2 × 1/33152–622,44097–397,215
Adamantite ore.png: Ancient chest drops Adamantite ore with rarity 2 × 1/33 in quantity 1-789 (noted)Adamantite ore1–789 (noted)2 × 1/33545–430,005240–189,360
Runite ore.png: Ancient chest drops Runite ore with rarity 2 × 1/33 in quantity 1-65 (noted)Runite ore1–65 (noted)2 × 1/3310,223–664,4951,920–124,800
Uncut sapphire.png: Ancient chest drops Uncut sapphire with rarity 2 × 1/33 in quantity 1-697 (noted)Uncut sapphire1–697 (noted)2 × 1/33231–161,00715–10,455
Uncut emerald.png: Ancient chest drops Uncut emerald with rarity 2 × 1/33 in quantity 1-923 (noted)Uncut emerald1–923 (noted)2 × 1/33467–431,04130–27,690
Uncut ruby.png: Ancient chest drops Uncut ruby with rarity 2 × 1/33 in quantity 1-541 (noted)Uncut ruby1–541 (noted)2 × 1/331,104–597,26460–32,460
Uncut diamond.png: Ancient chest drops Uncut diamond with rarity 2 × 1/33 in quantity 1-258 (noted)Uncut diamond1–258 (noted)2 × 1/332,441–629,778120–30,960

Other

Item Quantity Rarity Price High Alch
Ancient tablet.png: Ancient chest drops Ancient tablet with rarity 1/10 in quantity 1Ancient tablet11/10[d 1]Not sold45,000
Lizardman fang.png: Ancient chest drops Lizardman fang with rarity 2 × 1/33 in quantity 1-4681Lizardman fang1–4,6812 × 1/339–42,12936–168,516
Pure essence.png: Ancient chest drops Pure essence with rarity 2 × 1/33 in quantity 1-65535 (noted)Pure essence1–65,535 (noted)2 × 1/332–131,0702–131,070
Saltpetre.png: Ancient chest drops Saltpetre with rarity 2 × 1/33 in quantity 1-4681 (noted)Saltpetre1–4,681 (noted)2 × 1/335–23,4053–14,043
Teak plank.png: Ancient chest drops Teak plank with rarity 2 × 1/33 in quantity 1-1365 (noted)Teak plank1–1,365 (noted)2 × 1/33738–1,007,370300–409,500
Mahogany plank.png: Ancient chest drops Mahogany plank with rarity 2 × 1/33 in quantity 1-550 (noted)Mahogany plank1–550 (noted)2 × 1/331,873–1,030,150900–495,000
Dynamite.png: Ancient chest drops Dynamite with rarity 2 × 1/33 in quantity 1-2427 (noted)Dynamite1–2,427 (noted)2 × 1/33172–417,44460–145,620
Torn prayer scroll.png: Ancient chest drops Torn prayer scroll with rarity 2 × 1/33 in quantity 1Torn prayer scroll12 × 1/3346,85748,000
Dark relic.png: Ancient chest drops Dark relic with rarity 2 × 1/33 in quantity 1Dark relic12 × 1/33Not sold0
  1. ^ Only received if players do not own one or have not consumed it already. Replaces one of the loot rolls.

Tertiary

Item Quantity Rarity Price High Alch
Dark journal.png: Ancient chest drops Dark journal with rarity Always in quantity 1Dark journal1Always[d 1]Not sold0
Clue scroll (elite).png: Ancient chest drops Clue scroll (elite) with rarity 1/12 in quantity 1Clue scroll (elite)11/12[d 3][d 4][d 2]Not sold12
Olmlet.png: Ancient chest drops Olmlet with rarity 1/53 in quantity 1Olmlet11/53[d 5]Not soldN/A
Twisted ancestral colour kit.png: Ancient chest drops Twisted ancestral colour kit with rarity 1/75 in quantity 1Twisted ancestral colour kit11/75[d 6]Not sold5,700
Metamorphic dust.png: Ancient chest drops Metamorphic dust with rarity 1/400 in quantity 1Metamorphic dust11/400[d 6][3]Not sold0
  1. ^ The dark journal is only received if players do not have it stored in their bank.
  2. ^ The elite clue scroll is only rolled when the player does not get a broadcasted unique reward.
  3. ^ The elite clue scroll drop rate increases to 1/11 after unlocking the elite Combat Achievements rewards tier.
  4. ^ Clue scrolls will drop as scroll boxes after the completion of X Marks the Spot.
  5. ^ Olmlet is only rolled when the player gets a broadcasted unique reward; with 26,025 points per raid, the Olmlet rate is ~1/1,765.
  6. ^ 6.0 6.1 Only obtainable in Challenge Mode and if the raid was completed within a certain time.

Rewards calculator

template=Calculator:Chambers of Xeric/Template
form=CoXForm
result=CoXResult
param = personalPoints|Personal points|20000|int|0-|
param = groupPoints|Group points|60000|int|0-|
param = teamSize|Team size|3|string|1-100|
param = timeTaken|Time taken (minutes, optional)||string||
param = split|Split uniques?|yes|check|yes,no
autosubmit = disabled
Please input the data and submit the form.

Changes

Date Changes
26 June 2025
Hotfix

Seeds are no longer guaranteed drops, instead 33% chance of getting seeds instead of herbs, following the same intended ratio of seeds to herbs.

25 June 2025
(Update)

Seeds replaced herbs as a reward drop. The amount of herbs that could potentially be rewarded were cut by 20% for all except dwarf weed, which was 40%, and half of that amount would be turned into seed drops at a ratio of 1 seed for every 7 herbs.

8 January 2025
(Update)

To prevent megascale boosting abuse at Chambers of Xeric, we've changed how unique rewards are distributed. Now players who leave a raid in progress are eligible to receive unique items, but if they would do so, the reward is discarded instead. This ensures that leaving a CoX raid no longer transfers loot chances onto remaining participants.

References

  1. ^
  2. ^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11
  3. ^ Old School RuneScape. "Old School Weekly Q&A - 20th June 2018 - Deadman, New JMods and Integrity" (in 3:20). YouTube video. 21 June 2018.

Source

Content from the Old School RuneScape Wiki (operated by Weird Gloop), licensed under CC BY-NC-SA 3.0.

Source siteOld School RuneScape Wiki
Canonical sourceAncient chest
Content licenseCC BY-NC-SA 3.0
License statusdeclared
PictureCrystal (ancient chest) · file details

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