Thermonuclear smoke devil

Thermonuclear smoke devil
Released	10 April 2014 (Update)
Members	Yes
Combat level	301
Size	4x4
Examine	Woah.
Combat info
Max hit	8
Aggressive	No
Poison	No
Attack style	Typeless Magical ranged
Attack speed
Slayer info
Slayer level	93
Slayer XP	240
Category	Boss, Smoke devil
Assigned by
Combat stats
Aggressive stats
Defensive stats
Immunities
Immune to poison	Immune to venom
Advanced data
Monster ID	499

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The thermonuclear smoke devil, often referred to as Thermy, is the boss version of the smoke devil, found in the Smoke Devil Dungeon. These require a minimum of 93 Slayer to kill. Located at the Smoke Devil Dungeon south of Castle Wars, the Thermonuclear smoke devil can only be attacked on a smoke devil task, with the exception of one kill for the Western Provinces Diary (provided that the player has 93 Slayer without boosting).

It is the only monster to drop the Smoke battlestaff and the pet smoke devil. Their non-boss variants also has a chance to drop the occult necklace, but at a lower drop chance.

A dwarf multicannon cannot be used inside the boss room. If attempted, the cannon will be destroyed (similar to areas like at KBD or KQ).

Drops[edit | edit source]

Drop rates estimated based on 79,084 kills from the Old School RuneScape Wiki drop log project, unless otherwise cited.

An average Thermonuclear smoke devil kill is worth 21,189.

100%[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Ashes	1	Always	50	1

Weapons and armour[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Rune dagger	1	5/128	4,406	4,800
Rune chainbody	1	4/128	29,479	30,000
Red d'hide body	1	3/128	6,057	6,738
Rune battleaxe	1	3/128	24,453	24,960
Mystic air staff	1	3/128	25,114	25,500
Mystic fire staff	1	3/128	25,110	25,500
Rune scimitar	1	2/128	14,988	15,360
Rune knife(p++)	50	1/128	22,450	4,950
Dragon scimitar	1	1/128	59,458	60,000
Ancient staff	1	1/128	61,232	60,000
Occult necklace	1	1/350^[1]	493,029	27,000
Smoke battlestaff	1	1/512^[1]	1,967,067	9,300
Dragon chainbody	1	1/2,000^[1]	362,746	150,000

Runes and ammunition[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Smoke rune	100	10/128	6,100	1,200
Air rune	300	8/128	1,500	600
Soul rune	60	8/128	8,760	10,800
Rune arrow	100	2/128	6,000	24,000

Consumables[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Ugthanki kebab	3	4/128	2,973	36
Tuna potato	3	3/128	4,380	201
Sanfew serum(4)	2	3/128	60,426	360
Prayer potion(4)	2	1/128	27,746	228

Resources[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Pure essence	300 (noted)	5/128	600	600
Molten glass	100 (noted)	2/128	15,100	100
Mithril bar	20 (noted)	2/128	13,020	3,600
Coal	150 (noted)	2/128	21,150	4,050
Magic logs	20 (noted)	2/128	19,700	3,840
Gold ore	200 (noted)	2/128	39,800	18,000
Diamond	10 (noted)	1/128	18,830	12,000

Other[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Coins	10,000–20,000	15/128	10,000-20,000	10,000-20,000
Tinderbox	1	10/128	39	0
Fire talisman	1	4/128	4,077	2
Bullseye lantern	1	3/128	1,047	252
Desert goat horn	50 (noted)	2/128	3,050	350
Grimy toadflax	15 (noted)	2/128	29,580	165
Onyx bolt tips	12	2/128	97,140	7,200
Snapdragon seed	2	2/128	146,856	72
Grapes	100 (noted)	1/128	10,600	0
Magic seed	1	1/128^[1]	123,076	253
Dragonstone ring	1	1/128	11,915	10,575
Crystal key	1	1/128^[2]	20,120	90

Gem drop table[edit | edit source]

There is a 3/128 chance of rolling the gem drop table.

Item	Quantity	Rarity	Price	High Alch
Uncut sapphire	1	1/170.67; 1/86.67^{[d 1]}	438	15
Uncut emerald	1	1/341.33; 1/173.33^{[d 1]}	695	30
Uncut ruby	1	1/682.67; 1/346.67^{[d 1]}	1,303	60
Nature talisman	1	1/1,820.44; 1/924.44^{[d 1]}	700	2
Uncut diamond	1	1/2,730.67; 1/1,386.67^{[d 1]}	2,699	120
Loop half of key	1	1/5,461.33; 1/2,773.33^{[d 1]}	9,770	60
Tooth half of key	1	1/5,461.33; 1/2,773.33^{[d 1]}	9,756	60
Rune javelin	5	1/5,461.33; 1/2,773.33^{[d 1]}	770	1,200
Rune spear	1	1/87,381.33; 1/5,200^{[d 1]}^{[d 2]}	11,873	12,480
Shield left half	1	1/174,762.67; 1/10,400^{[d 1]}^{[d 2]}	65,480	66,000
Dragon spear	1	1/233,016.89; 1/13,866.67^{[d 1]}^{[d 2]}	37,479	37,440

↑ ^1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 The drop rate of this item is increased when wearing a Ring of wealth.
↑ ^2.0 ^2.1 ^2.2 The Rune spear, Shield left half and Dragon spear will only be dropped if Legend's Quest has been started, or else a talisman will be dropped as a replacement.

Tertiary[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Brimstone key	1	1/59.8^{[d 1]}^[3]	Not sold	N/A
Clue scroll (hard)	1	1/96^[4]	Not sold	12
Clue scroll (elite)	1	1/500^[1]	Not sold	12
Pet smoke devil	1	1/3,000^[5]	Not sold	N/A

↑ Brimstone keys are only dropped if killed on a slayer assignment given by Konar quo Maten.

Changes[edit | edit source]

Date	Changes
19 March 2015 (update)	You can no longer kill Thermy without a slayer assignment if you haven't started the Western Achievement Diary.
17 July 2014 (update \| poll)	Players can now receive a pet version of this boss after defeating it.
22 May 2014 (update)	When Thermy drops a clue scroll, it now appears at the correct place on the ground. Thermy and the Cave kraken boss now have 'Attack' options, rather than 'Fight'.

Trivia[edit | edit source]

The thermonuclear smoke devil was graphically updated on 27 September 2018 as part of a update. Prior to the update, it was simply a larger version of the smoke devils scattered across the dungeon.
The thermonuclear smoke devil and the Kraken are the only slayer bosses that can be fought with another player.
Despite the magic defence bonus of +800, at level one the effective defence against magical attacks is equal to 13,5 magic levels due to the way magic defence rolls are calculated.

References[edit | edit source]

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 Envision. "Drop Rates V2." RuneScape Forums.
↑ Jagex. Mod Ash's Twitter account. 9 Mar 2016. Mod Ash: "1/128. I hope you got some other decent stuff while that was going on."
↑ 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]"
↑ Jagex. The Kebos Lowlands. 10 Jan 2019. (Archived from the original on 15 Mar 2019.)*
↑ Jagex. Mod JohnC's Twitter account. 15 Sep 2014. (Archived from the original on 15 Sep 2014.) Mod JohnC: "Kraken, Thermy & Penance Queen pet drop rates - DKS for the final reveal next week!"

[row-3] 1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 The drop rate of this item is increased when wearing a Ring of wealth.

[rowm-4] 2.0 ^2.1 ^2.2 The Rune spear, Shield left half and Dragon spear will only be dropped if Legend's Quest has been started, or else a talisman will be dropped as a replacement.

[5] Brimstone keys are only dropped if killed on a slayer assignment given by Konar quo Maten.

[DV2-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 Envision. "Drop Rates V2." RuneScape Forums.

[2] Jagex. Mod Ash's Twitter account. 9 Mar 2016. Mod Ash: "1/128. I hope you got some other decent stuff while that was going on."

[6] 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]"

[7] Jagex. The Kebos Lowlands. 10 Jan 2019. (Archived from the original on 15 Mar 2019.)*

[Confirmed_droprates-8] Jagex. Mod JohnC's Twitter account. 15 Sep 2014. (Archived from the original on 15 Sep 2014.) Mod JohnC: "Kraken, Thermy & Penance Queen pet drop rates - DKS for the final reveal next week!"

[1]

[2]

[d 1]

[d 2]

[d 1]

[3]

[4]

[5]

Thermonuclear smoke devil

Contents

Drops[edit | edit source]

100%[edit | edit source]

Weapons and armour[edit | edit source]

Runes and ammunition[edit | edit source]

Consumables[edit | edit source]

Resources[edit | edit source]

Other[edit | edit source]

Gem drop table[edit | edit source]

Tertiary[edit | edit source]

Changes[edit | edit source]

Trivia[edit | edit source]

References[edit | edit source]

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