Brimstone key

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Brimstone key 10 detail.png

The brimstone key is a key obtained from killing monsters while on a Slayer task given by Konar quo Maten. It is used to open the brimstone chest. The average value of a drop from the brimstone chest is 96,257.85. Upon death in the Wilderness, a brimstone key converts to two coins for the killer.

The probability of receiving a key as a drop increases with the slain monster's Combat level. For monsters with combat level 100 or higher, the probability is between and , scaling linearly and capping at level 350. Specifically, the probability for a monster with combat level is[1]

.

For monsters with combat level smaller than level 100, the probability follows the curve[2]

.

Additionally, if the monster has a Slayer level requirement, there is a 20% boost in the drop probability.[3]

Drop sources[edit | edit source]

For an exhaustive list of all known sources for this item, see here (include RDT).
SourceLevelQuantityRarity
Aberrant spectre96 Multicombat.png11/82
Abhorrent spectre253 Multicombat.png11/55
Abyssal Sire350 Multicombat.png11/40
This content is present in Twisted League. Abyssal demon124 Multicombat.png11/76
Adamant dragon338 Multicombat.png11/52
Ahrim the Blighted98 Multicombat.png11/100
This content is present in Twisted League. Alchemical Hydra426 Multicombat.png11/40
Ancient Wyvern210 Multicombat.png11/62
Ancient Zygomite109 Multicombat.png11/78
This content is present in Twisted League. Ankou (m)75–98 Multicombat.png11/225
Aviansie69–148 Multicombat.png11/292
Baby black dragon83 Multicombat.png11/157
Baby blue dragon48 Multicombat.png11/640
This content is present in Twisted League. Baby red dragon48 Multicombat.png11/640
Basilisk Knight204 Multicombat.png11/63
Basilisk Sentinel358 Multicombat.png11/40
Basilisk61 Multicombat.png11/323
Berry71 Multicombat.png11/268
Black demon Level 178178 Multicombat.png11/85
This content is present in Twisted League. Black demon Level 172172 Multicombat.png11/85
This content is present in Twisted League. Black demon Level 184184 Multicombat.png11/85
Black dragon Level 227227 Multicombat.png11/74
Bloodveld76; 81 Multicombat.png11/172
Blue dragon111 Multicombat.png11/97
Brine rat70 Multicombat.png11/224
This content is present in Twisted League. Bronze dragon131; 143 Multicombat.png11/93
This content is present in Twisted League. Brutal black dragon318 Multicombat.png11/56
This content is present in Twisted League. Brutal blue dragon271 Multicombat.png11/65
This content is present in Twisted League. Brutal red dragon289 Multicombat.png11/62
Callisto470 Multicombat.png11/50
Cave kraken127 Multicombat.png11/75
Cerberus318 Multicombat.png11/56
Chaos Elemental305 Multicombat.png11/59
Chaos Fanatic202 Multicombat.png11/79
This content is present in Twisted League. Choke devil264 Multicombat.png11/53
Colossal Hydra309 Multicombat.png11/46
Commander Zilyana596 Multicombat.png11/50
Crazy archaeologist204 Multicombat.png11/79
Dagannoth (Waterbirth Island) Level 9090 Multicombat.png11/120
Dagannoth (Waterbirth Island) Level 8888 Multicombat.png11/128
Dagannoth Prime303 Multicombat.png11/59
Dagannoth Rex303 Multicombat.png11/59
Dagannoth Supreme303 Multicombat.png11/59
Dagannoth fledgeling70 Multicombat.png11/280
Dagannoth spawn42 Multicombat.png11/772
This content is present in Twisted League. Dagannoth74; 92 Multicombat.png11/235
Dark beast182 Multicombat.png11/66
This content is present in Twisted League. Deviant spectre169 Multicombat.png11/68
Dharok the Wretched115 Multicombat.png11/97
This content is present in Twisted League. Drake192 Multicombat.png11/64
This content is present in Twisted League. Dust devil93; 110 Multicombat.png11/87
This content is present in Twisted League. Fire giant86; 104; 109 Multicombat.png11/139
Flight Kilisa159 Multicombat.png11/88
Flockleader Geerin149 Multicombat.png11/90
Gargoyle111 Multicombat.png11/77
General Graardor624 Multicombat.png11/50
Giant Mole230 Multicombat.png11/74
This content is present in Twisted League. Greater Nechryael200 Multicombat.png11/64
This content is present in Twisted League. Greater abyssal demon342 Multicombat.png11/40
This content is present in Twisted League. Greater demon Level 92 (m)92 Multicombat.png11/112
Grotesque Guardians Multicombat.png11/56
Guardian Drake386 Multicombat.png11/40
Guthan the Infested115 Multicombat.png11/97
This content is present in Twisted League. Hellhound122; 127; 136 Multicombat.png11/95
This content is present in Twisted League. Hydra194 Multicombat.png11/64
Insatiable Bloodveld202 Multicombat.png11/63
This content is present in Twisted League. Insatiable mutated Bloodveld278 Multicombat.png11/51
This content is present in Twisted League. Iron dragon189; 215 Multicombat.png11/82
Jelly78 Multicombat.png11/156
K'ril Tsutsaroth650 Multicombat.png11/50
Kalphite Guardian141 Multicombat.png11/91
Kalphite Queen333 Multicombat.png11/53
Kalphite Soldier85 Multicombat.png11/145
Kalphite Worker28 Multicombat.png11/1,136
Karil the Tainted98 Multicombat.png11/100
King Black Dragon276 Multicombat.png11/64
King kurask295 Multicombat.png11/48
Kraka91 Multicombat.png11/116
Kraken291 Multicombat.png11/48
Kree'arra580 Multicombat.png11/50
Kurask106 Multicombat.png11/78
This content is present in Twisted League. Lizardman brute73 Multicombat.png11/245
This content is present in Twisted League. Lizardman shaman150 Multicombat.png11/90
This content is present in Twisted League. Lizardman53; 62 Multicombat.png11/541
This content is present in Twisted League. Lizardman53; 62 Multicombat.png11/388
Long-tailed Wyvern152 Multicombat.png11/71
Marble gargoyle349 Multicombat.png11/40
Mithril dragon304 Multicombat.png11/59
Monstrous basilisk135 Multicombat.png11/74
This content is present in Twisted League. Mountain troll69; 71 Multicombat.png11/292
This content is present in Twisted League. Mutated Bloodveld123 Multicombat.png11/76
Nechryael115 Multicombat.png11/77
This content is present in Twisted League. Nechryarch300 Multicombat.png11/48
Night beast374 Multicombat.png11/40
Nuclear smoke devil280 Multicombat.png11/51
Pee Hat91 Multicombat.png11/116
This content is present in Twisted League. Red dragon152 Multicombat.png11/89
This content is present in Twisted League. Repugnant spectre335 Multicombat.png11/42
Rock (Troll)111 Multicombat.png11/97
Rune dragon380 Multicombat.png11/50
This content is present in Twisted League. Sarachnis318 Multicombat.png11/56
Scorpia225 Multicombat.png11/75
This content is present in Twisted League. Screaming twisted banshee144 Multicombat.png11/72
Shadow Wyrm267 Multicombat.png11/52
Skeletal Wyvern140 Multicombat.png11/73
This content is present in Twisted League. Skotizo321 Multicombat.png11/55
Smoke devil160 Multicombat.png11/70
Spiked Turoth244 Multicombat.png11/56
Spitting Wyvern139 Multicombat.png11/73
This content is present in Twisted League. Steel dragon246; 274 Multicombat.png11/70
Stick104 Multicombat.png11/99
Taloned Wyvern147 Multicombat.png11/72
This content is present in Twisted League. Temple Spider75 Multicombat.png11/225
Thermonuclear smoke devil301 Multicombat.png11/47
Thrower Troll67 Multicombat.png11/317
Torag the Corrupted115 Multicombat.png11/97
Troll general113 Multicombat.png11/97
Turoth83; 85; 87; 89 Multicombat.png11/125
Twig71 Multicombat.png11/268
This content is present in Twisted League. Twisted Banshee89 Multicombat.png11/99
Venenatis464 Multicombat.png11/50
Verac the Defiled115 Multicombat.png11/97
Vet'ion454 Multicombat.png11/50
Vitreous Jelly206 Multicombat.png11/62
This content is present in Twisted League. Vitreous warped Jelly241 Multicombat.png11/56
Vorkath392; 732 Multicombat.png11/50
Vyrewatch Sentinel151 Multicombat.png11/89
Vyrewatch87–125 Multicombat.png11/133
This content is present in Twisted League. Warped Jelly112 Multicombat.png11/77
Waterfiend115 Multicombat.png11/97
Wingman Skree143 Multicombat.png11/91
This content is present in Twisted League. Wyrm99 Multicombat.png11/80
Zulrah725 Multicombat.png11/50
Zygomite74; 86 Multicombat.png11/188
Zygomite74; 86 Multicombat.png11/111

Gallery[edit | edit source]

Changes[edit | edit source]

Date Changes
28 May 2020
(update)
A bug causing the Brimstone key drop rate to be lower than intended for monsters with a combat level of 100 or higher was fixed.[4]

Trivia[edit | edit source]

  • The symbol on the key is that of Yin and yang ("阴阳"/"陰陽"), which, in Chinese philosophy, are the two "primal" elements which create, shape, and influence everything in existence and have to be kept in balance. This references the philosophy of the Kahlith and their masters, the Tasakaal, which is to maintain the balance between life and death.

References[edit | edit source]

  1. Jagex. Mod Kieren's Twitter account. 16 January 2019. (Archived from the original on 26 May 2020.) 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. (Archived from the original on 29 April 2020.) Mod Kieren: "0.2*(CBLEVEL - 100)^2 + 100"
  3. Jagex. Mod Ash's Twitter account. 8 June 2020. (Archived from the original on 11 June 2020.)
  4. Jagex. Mod Ash's Twitter account. 6 June 2020. (Archived from the original on 8 June 2020.) Mod Ash: "Actually Mod Maylea & I had this fixed in the update before last - sorry it didn't make the newspost at the time."