Brimstone chest

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ClosedOpened

The Brimstone chest can be found next to Konar quo Maten on Mount Karuulm. The chest is locked and can only be opened by using a brimstone key, which is obtained from killing monsters that Konar assigns the player.

The exact odds of receiving the key are 1/100 for level 100 monsters and 1/50 for level 350 monsters, scaling linearly and capping at 350 (-0.2 * lvl + 120).[1] For lower level monsters, it follows a curve (0.2 * (lvl - 100) ^ 2 + 100).[2]

Possible loot[edit | edit source]

The brimstone chest usually contains generic loot meant as a slight increase to the player's profits. There is also a rare chance of getting a broken dragon hasta, which can be repaired, for free, by simply showing it to Otto Godblessed (Barbarian Training in Smithing is not required for this). There's also a slim chance of obtaining pieces of the dusk mystic robe set, which come with a colour scheme similar to that of Mount Karuulm.

The average value of a drop from this table is 103,154.93.[3]

Item Quantity Rarity GE market price
Uncut diamond.png: Brimstone chest can drop the item Uncut diamond with rarity Common in quantity 25-35 (noted) Uncut diamond 25–35 (noted) Common (1/12) 73,200–102,480
Uncut ruby.png: Brimstone chest can drop the item Uncut ruby with rarity Common in quantity 25-35 (noted) Uncut ruby 25–35 (noted) Common (1/12) 34,900–48,860
Coal.png: Brimstone chest can drop the item Coal with rarity Common in quantity 300-500 (noted) Coal 300–500 (noted) Common (1/12) 46,800–78,000
Coins 10000.png: Brimstone chest can drop the item Coins with rarity Common in quantity 50000-150000 Coins 50,000–150,000 Common (1/12) Not sold
Gold ore.png: Brimstone chest can drop the item Gold ore with rarity Common in quantity 100-200 (noted) Gold ore 100–200 (noted) Common (1/15) 35,600–71,200
Dragon arrowtips.png: Brimstone chest can drop the item Dragon arrowtips with rarity Common in quantity 50-200 Dragon arrowtips 50–200 Common (1/15) 46,050–184,200
Iron ore.png: Brimstone chest can drop the item Iron ore with rarity Common in quantity 350-500 (noted) Iron ore 350–500 (noted) Common (1/20) 34,300–49,000
Rune full helm.png: Brimstone chest can drop the item Rune full helm with rarity Common in quantity 2-4 (noted) Rune full helm 2–4 (noted) Common (1/20) 41,446–82,892
Rune platebody.png: Brimstone chest can drop the item Rune platebody with rarity Common in quantity 1-2 (noted) Rune platebody 1–2 (noted) Common (1/20) 38,611–77,222
Rune platelegs.png: Brimstone chest can drop the item Rune platelegs with rarity Common in quantity 1-2 (noted) Rune platelegs 1–2 (noted) Common (1/20) 37,987–75,974
Raw tuna.png: Brimstone chest can drop the item Raw tuna with rarity Common in quantity 100-350 (noted) Raw tuna[A 1] 100–350 (noted) Common (1/20) 7,500–26,250
Raw lobster.png: Brimstone chest can drop the item Raw lobster with rarity Common in quantity 100-350 (noted) Raw lobster[A 1] 100–350 (noted) Common (1/20) 15,400–53,900
Raw swordfish.png: Brimstone chest can drop the item Raw swordfish with rarity Common in quantity 100-300 (noted) Raw swordfish[A 1] 100–300 (noted) Common (1/20) 29,000–87,000
Raw monkfish.png: Brimstone chest can drop the item Raw monkfish with rarity Common in quantity 100-300 (noted) Raw monkfish[A 1] 100–300 (noted) Common (1/20) 34,900–104,700
Raw shark.png: Brimstone chest can drop the item Raw shark with rarity Common in quantity 100-250 (noted) Raw shark[A 1] 100–250 (noted) Common (1/20) 61,800–154,500
Raw sea turtle.png: Brimstone chest can drop the item Raw sea turtle with rarity Common in quantity 80-200 (noted) Raw sea turtle[A 1] 80–200 (noted) Common (1/20) 52,320–130,800
Raw manta ray.png: Brimstone chest can drop the item Raw manta ray with rarity Common in quantity 80-160 (noted) Raw manta ray[A 1] 80–160 (noted) Common (1/20) 75,120–150,240
Runite ore.png: Brimstone chest can drop the item Runite ore with rarity Uncommon in quantity 10-15 (noted) Runite ore 10–15 (noted) Uncommon (1/30) 113,660–170,490
Steel bar.png: Brimstone chest can drop the item Steel bar with rarity Uncommon in quantity 300-500 (noted) Steel bar 300–500 (noted) Uncommon (1/30) 114,900–191,500
Magic logs.png: Brimstone chest can drop the item Magic logs with rarity Uncommon in quantity 120-160 (noted) Magic logs 120–160 (noted) Uncommon (1/30) 137,520–183,360
Dragon dart tip.png: Brimstone chest can drop the item Dragon dart tip with rarity Uncommon in quantity 40-160 Dragon dart tip 40–160 Uncommon (1/30) 128,240–512,960
Palm tree seed.png: Brimstone chest can drop the item Palm tree seed with rarity Rare in quantity 2-4 Palm tree seed 2–4 Rare (1/60) 75,442–150,884
Magic seed.png: Brimstone chest can drop the item Magic seed with rarity Rare in quantity 2-3 Magic seed 2–3 Rare (1/60) 279,968–419,952
Celastrus seed.png: Brimstone chest can drop the item Celastrus seed with rarity Rare in quantity 2-4 Celastrus seed 2–4 Rare (1/60) 157,838–315,676
Dragonfruit tree seed.png: Brimstone chest can drop the item Dragonfruit tree seed with rarity Rare in quantity 2-4 Dragonfruit tree seed 2–4 Rare (1/60) 319,546–639,092
Redwood tree seed.png: Brimstone chest can drop the item Redwood tree seed with rarity Rare in quantity 1 Redwood tree seed 1 Rare (1/60) 32,570
Torstol seed.png: Brimstone chest can drop the item Torstol seed with rarity Rare in quantity 3-5 Torstol seed 3–5 Rare (1/60) 151,551–252,585
Snapdragon seed.png: Brimstone chest can drop the item Snapdragon seed with rarity Rare in quantity 3-5 Snapdragon seed 3–5 Rare (1/60) 154,944–258,240
Ranarr seed.png: Brimstone chest can drop the item Ranarr seed with rarity Rare in quantity 3-5 Ranarr seed 3–5 Rare (1/60) 116,100–193,500
Pure essence.png: Brimstone chest can drop the item Pure essence with rarity Rare in quantity 3000-6000 (noted) Pure essence 3,000–6,000 (noted) Rare (1/60) 9,000–18,000
Broken dragon hasta.png: Brimstone chest can drop the item Broken dragon hasta with rarity Rare in quantity 1 Broken dragon hasta 1 Rare (1/200) 41,044
Mystic hat (dusk).png: Brimstone chest can drop the item Mystic hat (dusk) with rarity Very rare in quantity 1 Mystic hat (dusk) 1 Very rare (1/1,000) 116,803
Mystic robe top (dusk).png: Brimstone chest can drop the item Mystic robe top (dusk) with rarity Very rare in quantity 1 Mystic robe top (dusk) 1 Very rare (1/1,000) 299,566
Mystic robe bottom (dusk).png: Brimstone chest can drop the item Mystic robe bottom (dusk) with rarity Very rare in quantity 1 Mystic robe bottom (dusk) 1 Very rare (1/1,000) 222,647
Mystic gloves (dusk).png: Brimstone chest can drop the item Mystic gloves (dusk) with rarity Very rare in quantity 1 Mystic gloves (dusk) 1 Very rare (1/1,000) 41,592
Mystic boots (dusk).png: Brimstone chest can drop the item Mystic boots (dusk) with rarity Very rare in quantity 1 Mystic boots (dusk) 1 Very rare (1/1,000) 83,753
  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 The type of raw fish obtained is dependant on the player's Fishing level.

Changes[edit | edit source]

Date Changes
21 February 2019 (update) Loot obtained from the chest is now broadcasted in the chatbox to players within the vicinity.
14 March 2019 (update | poll) The brimstone chest now tracks the amount of times the player has opened it.

Trivia[edit | edit source]

  • Several items can be seen inside the brimstone chest while it is open, including coins, stacks of banknotes, and vials of a yellow potion. This is of course a reference to the loot players can receive from the chest.
  • The drop table contents found when opening a brimstone chest had seen several changes before the chest was introduced.

References[edit | edit source]

  1. Jagex. Mod Kieren's Twitter account. 16 January 2019. Mod Kieren: "It follows a curve up until level 100 then scales linearly between those 2 values upto level 350 combat. Creatures over thsi[sic] will cap at 1/50. [1]"
  2. Jagex. Mod Kieren's Twitter account. 16 January 2019. Mod Kieren: "0.2*(CBLEVEL - 100)^2 + 100"
  3. The Old School Team. "Revised Post Kebos Poll Blog". 21 January 2019. Developers' Blogs.