Ancient chest

ClosedOpened
Crystal
Released	5 January 2017 (Update)
Members	Yes
Quest	No
Location	Great Olm's room, Chambers of Xeric
Options	None
Examine	There seems to be something locked in the heart of the crystal.
Map
Advanced data
Object ID	30027

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. Depending on the points obtained in the raid, players have a chance to obtain a reward from the unique drop table. If the player does not roll into the unique drop table, they will obtain two rolls of standard loot instead (which cannot both be the same loot), with their quantity depending on points obtained.

A player receives a unique reward from the ancient chest.

Regardless of whether a unique drop was obtained, players may always additionally obtain the dark journal if they do not have it already, and the metamorphic dust/twisted ancestral colour kit for players completing a challenge mode raid if successfully rolled on.

By default, a white light will shine above the chest; if the player obtained an item from the unique drop table, the light is purple; if the player obtained a metamorphic dust, it is turquoise; if the player obtained a twisted ancestral colour kit, it is green. If multiple such drops are obtained simultaneously, the light alternates between each appropriate colour.

Unlike the other two raids, if the player attempts to leave the Chambers of Xeric with loot in the chest, they will be lost upon exiting.

Loot table[edit | edit source]

Unique drop table[edit | edit source]

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.

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.

Accessing this table is required in order to be eligible for Olmlet.

Item	Quantity	Rarity	Price	High Alch
Dexterous prayer scroll	1	20/69^[2]	39,095,777	48,000
Arcane prayer scroll	1	20/69^[2]	3,577,389	48,000
Twisted buckler	1	4/69^[2]	17,444,401	54,000
Dragon hunter crossbow	1	4/69^[2]	60,116,691	48,000
Dinh's bulwark	1	3/69^[2]	16,430,957	336,000
Ancestral hat	1	3/69^[2]	57,081,131	27,000
Ancestral robe top	1	3/69^[2]	181,793,004	72,000
Ancestral robe bottom	1	3/69^[2]	143,250,298	48,000
Dragon claws	1	3/69^[2]	92,226,472	123,000
Elder maul	1	2/69^[2]	8,625,686	300,006
Kodai insignia	1	2/69^[2]	88,495,173	90,000
Twisted bow	1	2/69^[2]	1,481,168,696	2,400,000

Runes and ammunition[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Death rune	1–3,640	2 × 1/33	93–338,520	108–393,120
Blood rune	1–4,095	2 × 1/33	196–802,620	240–982,800
Soul rune	1–6,553	2 × 1/33	235–1,539,955	180–1,179,540
Rune arrow	1–9,362	2 × 1/33	97–908,114	240–2,246,880
Dragon arrow	1–648	2 × 1/33	951–616,248	480–311,040

Herbs[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Grimy ranarr weed	1–163 (noted)	2 × 1/33	6,296–1,026,248	18–2,934
Grimy toadflax	1–248 (noted)	2 × 1/33	4,272–1,059,456	11–2,728
Grimy irit leaf	1–809 (noted)	2 × 1/33	1,668–1,349,412	10–8,090
Grimy avantoe	1–404 (noted)	2 × 1/33	4,000–1,616,000	10–4,040
Grimy kwuarm	1–338 (noted)	2 × 1/33	3,746–1,266,148	12–4,056
Grimy snapdragon	1–97 (noted)	2 × 1/33	7,649–741,953	12–1,164
Grimy cadantine	1–394 (noted)	2 × 1/33	3,954–1,557,876	13–5,122
Grimy lantadyme	1–526 (noted)	2 × 1/33	1,775–933,650	13–6,838
Grimy dwarf weed	1–655 (noted)	2 × 1/33	2,337–1,530,735	14–9,170
Grimy torstol	1–161 (noted)	2 × 1/33	4,132–665,252	15–2,415

Ores and gems[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Silver ore	1–6,553 (noted)	2 × 1/33	34–222,802	45–294,885
Coal	1–6,553 (noted)	2 × 1/33	242–1,585,826	27–176,931
Gold ore	1–2,978 (noted)	2 × 1/33	202–601,556	90–268,020
Mithril ore	1–4,095 (noted)	2 × 1/33	81–331,695	97–397,215
Adamantite ore	1–789 (noted)	2 × 1/33	733–578,337	240–189,360
Runite ore	1–65 (noted)	2 × 1/33	10,878–707,070	1,920–124,800
Uncut sapphire	1–693 (noted)	2 × 1/33	263–182,259	15–10,395
Uncut emerald	1–923 (noted)	2 × 1/33	471–434,733	30–27,690
Uncut ruby	1–541 (noted)	2 × 1/33	1,054–570,214	60–32,460
Uncut diamond	1–255 (noted)	2 × 1/33	2,295–585,225	120–30,600

Other[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Ancient tablet	1	1/10^{[d 1]}	Not sold	45,000
Lizardman fang	1–4,681	2 × 1/33	26–121,706	36–168,516
Pure essence	1–65,535 (noted)	2 × 1/33	1–65,535	2–131,070
Saltpetre	1–5,461 (noted)	2 × 1/33	5–27,305	3–16,383
Teak plank	1–1,365 (noted)	2 × 1/33	778–1,061,970	300–409,500
Mahogany plank	1–548 (noted)	2 × 1/33	2,097–1,149,156	900–493,200
Dynamite	1–2,427 (noted)	2 × 1/33	916–2,223,132	60–145,620
Torn prayer scroll	1	2 × 1/33	46,652	48,000
Dark relic	1	2 × 1/33	Not sold	0

^ Only received if players do not own one or have not consumed it already. Replaces one of the loot rolls.

Tertiary[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Dark journal	1	Always^{[d 1]}	Not sold	0
Clue scroll (elite)	1	1/12^{[d 3]}^{[d 2]}	Not sold	12
Olmlet	1	1/53^{[d 4]}	Not sold	N/A
Twisted ancestral colour kit	1	1/75^{[d 5]}	Not sold	5,700
Metamorphic dust	1	1/400^{[d 5]}^[3]	Not sold	0

^ The dark journal is only received if players do not have it stored in their bank.
^ The elite clue scroll is only rolled when the player does not get a broadcasted unique reward.
^ The elite clue scroll drop rate increases to 1/11 after unlocking the elite Combat Achievements rewards tier.
^ 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.
^ ^5.0 ^5.1 Only obtainable in Challenge Mode and if the raid was completed within a certain time.

Rewards calculator[edit | edit source]

This dynamic calculator requires JavaScript.

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

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.

References[edit | edit source]

^ Jagex. Mod Ash's Twitter account. 15 January 2019. Archived from the original on 28 May 2020. Mod Ash: "Previously, every 570k points got the party a 80% chance of a unique. Now, every 570k points gets the party a 65.7% chance of a unique. Pets changed from 1/65 to 1/53 for a player who got a unique."
^ ^2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 ^2.11 Jagex. Mod Kieren's Twitter account. 12 May 2017. Archived from the original on 25 March 2019. Mod Kieren: "As requested by lots of people endlessly: Raids drop rates! [1]"
^ Old School RuneScape. "Old School Weekly Q&A - 20th June 2018 - Deadman, New JMods and Integrity" (in 3:20). Youtube video. 21 June 2018.

[3] Only received if players do not own one or have not consumed it already. Replaces one of the loot rolls.

[4] The dark journal is only received if players do not have it stored in their bank.

[5] The elite clue scroll is only rolled when the player does not get a broadcasted unique reward.

[6] The elite clue scroll drop rate increases to 1/11 after unlocking the elite Combat Achievements rewards tier.

[7] 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.

[cm-8] 5.0 ^5.1 Only obtainable in Challenge Mode and if the raid was completed within a certain time.

[1] Jagex. Mod Ash's Twitter account. 15 January 2019. Archived from the original on 28 May 2020. Mod Ash: "Previously, every 570k points got the party a 80% chance of a unique. Now, every 570k points gets the party a 65.7% chance of a unique. Pets changed from 1/65 to 1/53 for a player who got a unique."

[coxraidrate-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 Jagex. Mod Kieren's Twitter account. 12 May 2017. Archived from the original on 25 March 2019. Mod Kieren: "As requested by lots of people endlessly: Raids drop rates! [1]"

[metadrop-9] Old School RuneScape. "Old School Weekly Q&A - 20th June 2018 - Deadman, New JMods and Integrity" (in 3:20). Youtube video. 21 June 2018.

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Ancient chest

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