"Chambers" redirects here. For other uses, see Chamber.
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Mount Quidamortem
Location on World Map
Xeric's Shrine
Unknown Chambers of Xeric Lizardman Settlement
Kingdom of Varlamore
Chambers of Xeric logo

The Chambers of Xeric is a large cave system underneath Mount Quidamortem, built by Xeric in the Kebos region. It serves as the first raid. It was released on 5 January 2017.


Path to Raids

Getting to Mount Quidamortem from the Shayziens' Wall.

The Chambers of Xeric are located on Mount Quidamortem, which can be quickly accessed via the mine cart system with the Lovakengj House. This will require the player to bring a minecart control scroll from Miriam and bring it to Stuliette on the mountain. Doing so requires the player to have earned 65% favour with the Lovakengj House.

Otherwise, players will need to head to the Shayziens' Wall and make their way west to Mount Quidamortem; be wary of aggressive lizardmen and lizardmen brutes. For those arriving there without the mine cart system, speak to the Mountain Guide (who is located on the mountain next to Gnosi, Historian Duffy, and the Natural Historian) before leaving; doing so will establish a two-way transportation system between the mountain and the Shayziens' Wall.

Once players receive an ancient tablet as a reward from the Chambers of Xeric, they are able to use it on Xeric's talisman to instantly teleport to the mountain.


The Chambers of Xeric uses a unique party finding system to help determine how strong the team is. This will affect the strength of the monsters and bosses, in addition to the requirements needed in the skilling rooms. Players can bring their own supplies in (tools not needed), but will need to utilise the chambers' resources in order to defeat the increasingly strong bosses.

To start a raid, the leader must create a team. This "team" is the leader's Clan Chat; which other players may join by manually typing in the clan chat's name or by requesting to join the chat. Once everyone is ready, the leader should enter the chambers, where a starting room is located. The raid officially starts once the leader confirms that everyone is in the room; when that happens, all the mechanics will be calculated and no one may join the instance if they were not in by the time the raid started. If the leader leaves by any means, the next leader will be whoever has the ability to kick players from the Clan Chat; if no suitable rank is found, everyone is thrown out of the instance.

There are multiple demi-bosses/resource/puzzle rooms, and a final boss in every raid. There are three floors in each raid; the final floor is always the same, housing the final boss. At the end of the first and second floors is an energy well that fully replenishes the players' energy when interacted with.

Communication and teamwork is needed for players to defeat the bosses and complete the raid.

Challenge Mode

Chambers of Xeric Challenge Mode icon

Challenge Mode is a "hard" version of the existing Chambers of Xeric. All combat and puzzle rooms are featured, and the enemies themselves have significantly increased stats. The layout is always linear, and has four floors due to all combat/puzzle rooms being featured.

Completion of the mode can yield metamorphic dust to reskin an olmlet, and a cosmetic cape.


Fighting Great Olm

A group of players fighting the Great Olm.


Player rewards are based on "participation" points. As the team collects more points, they have an increased chance of obtaining unique items. Individually, these points determine what common rewards are given and the quantity of these rewards. If a player dies in a raid, they will lose 40% of the points that they had before their death. If the player dies with no or extremely few personal points, the team's overall points are reduced instead.

For example, if a player has 25,000 points and received ranarr weed drop and uncut rubies, they would get $ 25,000*8 $ coins worth of ranarr weed and uncut ruby, which works out to be 30 ranarr weeds and 88 uncut rubies. This has not been proven, but has been inferred by looking at the value of drops and the points received.

The current maximum amount of points attainable per player is 131,071 points.

As of an update on 23 March 2017, if a member of a raid party leaves early, the points multiplier for that raid will be reduced based on the number of people remaining in the party. However, the difficulty of the bosses will remain the same. In addition, the amount of raids points lost for the team when a player with low points dies has been increased.

Loot table

If the team does not roll into the unique drop table, players will obtain two random common rewards instead. The third slot is reserved for the dark journal if players do not have it already, and the metamorphic dust for players completing a challenge mode raid.

Unique drop table

Upon the Great Olm's death, if a unique reward item is given, it will be announced in the game chat. The beam of light covering the chest will change from white to purple for the player(s) who obtained a unique reward.

For every 7,125 total points obtained, a 1% chance to obtain a unique loot is given. This chance is capped at 80% (570,000 points) - any further points will be sent to roll for a second unique loot. For example, a team who possesses 1,068,750 points in total has an 80% chance to receive a unique loot, and then a 70% chance to obtain a second unique loot. Up to three unique rewards can be obtained per raid, assuming that there is enough points to roll for them.

If no unique loot is obtained, random resources are chosen, with the player's points determining the quantity of the items they obtain. In groups of all sizes, a weighting system is added when a unique loot is rolled, based on the players' points. For example, a player who has 90,000 points is twice as likely to obtain a unique reward compared to a player with 45,000 points.

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 Weighting (% chance) GE market price
Dexterous prayer scroll Dexterous prayer scroll 20 (23.8%) 63,936,873
Arcane prayer scroll Arcane prayer scroll 6,414,307
Dragon sword Dragon sword 5 (5.95%) 1,679,523
Dragon harpoon Dragon harpoon 7,502,643
Dragon thrownaxe Dragon thrownaxe x100 385,800
Twisted buckler Twisted buckler 4 (4.76%) 9,706,028
Dragon hunter crossbow Dragon hunter crossbow 177,364,738
Dinh's bulwark Dinh's bulwark 3 (3.57%) 6,706,734
Ancestral hat Ancestral hat 13,609,325
Ancestral robe top Ancestral robe top 73,939,288
Ancestral robe bottom Ancestral robe bottom 60,299,092
Dragon claws Dragon claws 70,364,949
Elder maul Elder maul 2 (2.38%) 22,510,743
Kodai insignia Kodai insignia 70,044,452
Twisted bow Twisted bow 1,077,913,200

The chance of obtaining a unique loot can be calculated by performing the following steps:

  1. Calculate the chance of receiving a unique loot (number of points/7,125)
  2. Convert the result by (dividing result by 100)
  3. Calculate the chance of receiving a specific unique loot by dividing the weight of the item by the sum of the total weights (Item weight/84)
  4. Multiply the first result with the second result.

For example, we will calculate the drop rate of a pair of dragon claws if the team has 413,250 total points:

  1. Chance of receiving a unique loot: 413,250/7,125 = 58%, or 0.58
  2. Chance of receiving dragon claws from table: 3/84 (or 1/28)
  3. 0.58*1/28 = 0.020714, which equals a 2.0714% chance of receiving dragon claws.

Runes and ammunition

Item Quantity Rarity GE market price
Death rune Death rune 1–3,100 Uncommon 289–895,900
Blood rune Blood rune 1–4,095 Uncommon 325–1,330,875
Soul rune Soul rune 1–6,554 [1] Uncommon 145–950,330
Rune arrow 5 Rune arrow 1–9,437 Uncommon 87–821,019
Dragon arrow 5 Dragon arrow 1–926 Uncommon 1,115–1,032,490


Item Quantity Rarity GE market price
Grimy toadflax Grimy toadflax 1–354 (noted) Uncommon 1,846–653,484
Grimy ranarr weed Grimy ranarr weed 1–164 (noted) [2] Uncommon 7,970–1,307,080
Grimy irit leaf Grimy irit leaf 1–668 (noted) Uncommon 891–595,188
Grimy avantoe Grimy avantoe 1–354 (noted) Uncommon 2,140–757,560
Grimy kwuarm Grimy kwuarm 1–323 (noted) Uncommon 1,575–508,725
Grimy snapdragon Grimy snapdragon 1–131 (noted) Uncommon 9,091–1,190,921
Grimy cadantine Grimy cadantine 1–319 (noted) Uncommon 1,479–471,801
Grimy lantadyme Grimy lantadyme 1–446 (noted) Uncommon 1,378–614,588
Grimy dwarf weed Grimy dwarf weed 1–616 (noted) Uncommon 977–601,832
Grimy torstol Grimy torstol 1–153 (noted) Uncommon 11,371–1,739,763

Ores and gems

Item Quantity Rarity GE market price
Silver ore Silver ore 1–6,553 (noted) [3] Uncommon 80–524,240
Coal Coal 1–6,553 (noted) [4] Uncommon 254–1,664,462
Gold ore Gold ore 1–2,892 (noted) Uncommon 356–1,029,552
Mithril ore Mithril ore 1–2,892 (noted) [5] Uncommon 183–529,236
Adamantite ore Adamantite ore 1–729 (noted) Uncommon 1,040–758,160
Runite ore Runite ore 1–87 (noted) Uncommon 10,897–948,039
Uncut sapphire Uncut sapphire 1–642 (noted) Uncommon 980–629,160
Uncut emerald Uncut emerald 1–923 (noted) Uncommon 976–900,848
Uncut ruby Uncut ruby 1–524 (noted) [6] Uncommon 1,812–949,488
Uncut diamond Uncut diamond 1–253 (noted) Uncommon 3,737–945,461


Item Quantity Rarity GE market price
Dark journal Dark journal 1 Always [7] Not sold
Ancient tablet Ancient tablet 1 Common (1/10)[8] Not sold
Lizardman fang Lizardman fang 1–4,898 Uncommon 23–112,654
Pure essence Pure essence 1–65,535 (noted) [9] Uncommon 4–262,140
Saltpetre Saltpetre 1–5,461 (noted) [10] Uncommon 5–27,305
Teak plank Teak plank 1–1,310 (noted) [11] Uncommon 931–1,219,610
Mahogany plank Mahogany plank 1–550 (noted) Uncommon 2,039–1,121,450
Dynamite Dynamite 1–2,390 (noted) Uncommon 344–822,160
Torn prayer scroll Torn prayer scroll 1 Uncommon 45,474
Dark relic Dark relic 1 Uncommon Not sold
Clue scroll (elite) Clue scroll (elite) 1 Uncommon [12] Not sold
Metamorphic dust Metamorphic dust 1 Rare (1/400)[13] Not sold
Olmlet Olmlet 1 Very rare (1/65)[14] Not sold
  1. The number of Soul rune is determined by dividing your rounded point total by 20
  2. The number of ranarr weed is determined by dividing your rounded point total by 800
  3. The number of silver ores is determined by dividing your rounded point total by 20
  4. The number of coal is determined by dividing your rounded point total by 20
  5. The number of mithril ores is determined by dividing your rounded point total by 32
  6. The number of uncut rubies is determined by dividing your rounded point total by 250
  7. Tertiary drop. Only received if players do not have it stored in their bank.
  8. Only received if players do not own one or have consumed it already.
  9. The number of pure essence is determined by dividing your rounded point total by 2
  10. The number of saltpetre is determined by dividing your rounded point total by 24
  11. The number of teak planks is determined by dividing your rounded point total by 100
  12. If a player rolls the resource table, there is a 1/12 chance of the second resource slot being replaced with an elite clue instead of half the resources.
  13. Tertiary drop. Only obtainable in Challenge Mode and if the raid was completed within a certain time.
  14. 1/65 chance of obtaining the pet when you obtain a unique raids item (broadcasted rewards)

Concept art


  • On 8 February 2018, the Chambers of Xeric were given several updates:
    • A bronze axe spawn was added in the ice demon room to allow players to immediately chop down saplings for wood. Several weeks before this, a tinderbox spawn was added into the room.
    • Whenever a mini-boss is killed, a broadcast will go out to player as to who obtained its drops.
    • The party interface now shows how many times the player has successfully completed the Chambers of Xeric.
    • The three storage chests were modified to now require 2, 4 and 6 mallignum root planks respectively. Originally, the chests required 4, 8 and 15 planks in order to construct.
  • A poll was added asking if players would like to see a "challenge mode" version of the Chambers of Xeric. "Challenge Mode" is similar to the upcoming Theatre of Blood raid, with a static layout. The unique reward from completing the raid on such a mode would be pet reskins for the Olmlet, allowing it to change into other mini-bosses encountered in the raid. In addition, a cosmetic cape would be added for players who completed 100, 500, 1000, 1500 and 2000 raids respectively. All questions passed, being 85.5, 79.8 and 76.6% of the vote respectively, and was implemented on 17 May 2018.