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This article is about the boss. For the Slayer monster, see Smoke devil.
Not to be confused with Nuclear smoke devil.
Invasion plans
This article has a strategy guide here.
All information on mechanics and strategy will be on this page.

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, however, also drop the Occult necklace, albeit at a lower rate.

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[]

Estimated drop rates are based off 2,000 kills.[1]

100% drops[]

Item Quantity Rarity GE market price
Ashes Ashes 1 Always 72

Weapons[]

Item Quantity Rarity GE market price
Rune dagger Rune dagger 1 Uncommon (~5/128) 4,391
Rune battleaxe Rune battleaxe 1 Uncommon (~3/128) 24,487
Mystic air staff Mystic air staff 1 Uncommon (~3/128) 24,974
Mystic fire staff Mystic fire staff 1 Uncommon (~3/128) 25,159
Rune scimitar Rune scimitar 1 Uncommon (~2/128) 14,969
Dragon scimitar Dragon scimitar 1 Rare (~1/128) 59,627
Ancient staff Ancient staff 1 Rare (1/129)[2] 81,482
Smoke battlestaff Smoke battlestaff 1 Rare (1/512) 1,976,673

Armour[]

Item Quantity Rarity GE market price
Red d'hide body Red d'hide body 1 Uncommon (~3.5/128) 5,932
Rune chainbody Rune chainbody 1 Uncommon (~3/128) 29,475
Occult necklace Occult necklace 1 Rare (1/350) 496,473
Dragon chainbody Dragon chainbody 1 Very rare (1/2,000) 375,127

Runes/Ammunition[]

Item Quantity Rarity GE market price
Smoke rune Smoke rune 100 Common (~9/128) 7,100
Air rune Air rune 300 Common (~8/128) 1,500
Soul rune Soul rune 60 Common (~7/128) 8,760
Rune arrow Rune arrow 100 Uncommon (~2/128) 7,000
Rune knife (p) Rune knife(p++) 50 Rare (~0.5/128) 15,450

Seeds[]

Item Quantity Rarity GE market price
Snapdragon seed Snapdragon seed 2 Uncommon (~2/128) 109,102
Magic seed Magic seed 1 Rare (~1/128) 118,931

Materials[]

Item Quantity Rarity GE market price
Pure essence Pure essence 300 (noted) Common (~5/128) 600
Desert goat horn Desert goat horn 50 (noted) Uncommon (~2/128) 4,500
Molten glass Molten glass 100 (noted) Uncommon (~2/128) 12,700
Mithril bar Mithril bar 20 (noted) Uncommon (~2/128) 13,240
Grimy toadflax Grimy toadflax 15 (noted) Uncommon (~2/128) 23,820
Coal Coal 150 (noted) Uncommon (~2/128) 24,300
Onyx bolt tips Onyx bolt tips 12 Uncommon (~2/128) 98,652
Magic logs Magic logs 20 (noted) Uncommon (~2/128) 21,800
Gold ore Gold ore 200 (noted) Uncommon (~2/128) 41,200
Grapes Grapes 100 (noted) Rare (~1/128) 7,300
Diamond Diamond 10 (noted) Rare (~1/128) 18,910

Consumables[]

Item Quantity Rarity GE market price
Ugthanki kebab Ugthanki kebab 3 Uncommon (~4.5/128) 2,442
Tuna potato Tuna potato 3 Uncommon (~3.5/128) 3,471
Sanfew serum(4) Sanfew serum(4) 2 Uncommon (~3/128) 61,788
Prayer potion(4) Prayer potion(4) 2 Rare (~1/128) 20,112

Other[]

Item Quantity Rarity GE market price
Coins 10000 Coins 10,000–20,000 Common (~14/128) Not sold
Tinderbox Tinderbox 1 Common (~9.5/128) 62
Bullseye lantern Bullseye lantern (unlit) 1 Uncommon (~4/128) 1,064
Fire talisman Fire talisman 1 Uncommon (~4/128) 4,924
Gem drop table Gem drop table 1 Uncommon (~3/128) Not sold
Dragonstone ring Dragonstone ring 1 Uncommon (~1.5/128) 12,035
Crystal key Crystal key 1 Rare (1/128)[3] 21,748

Tertiary drops[]

Item Quantity Rarity GE market price
Clue scroll (elite) Clue scroll (elite) 1 Rare (1/500) Not sold
Pet smoke devil Pet smoke devil 1 Very rare (1/3,000) Not sold

Gem drop table

In addition to the drops above, this monster approximately has a 3/128 chance to access the gem drop table.

Show/hide gem drop table
Item Quantity Rarity GE market price
Uncut sapphire Uncut sapphire 1 Rare
(1/170.67; 1/128)[G 1]
455
Uncut emerald Uncut emerald 1 Rare
(1/341.33; 1/256)[G 1]
679
Uncut ruby Uncut ruby 1 Rare
(1/682.67; 1/512)[G 1]
1,249
Nature talisman Nature talisman 1 Very rare
(1/1,820.44; 1/1,365.33)[G 1]
744
Uncut diamond Uncut diamond 1 Very rare
(1/2,730.67; 1/2,048)[G 1]
2,627
Rune javelin Rune javelin 5 Very rare
(1/5,461.33; 1/4,096)[G 1]
875
Loop half of key Loop half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
10,307
Tooth half of key Tooth half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
10,840
Rune spear Rune spear 1 Very rare
(1/87,381.33; 1/7,680)[G 1]
11,933
Shield left half Shield left half 1 Very rare
(1/174,762.67; 1/15,360)[G 1]
65,697
Dragon spear Dragon spear 1 Very rare
(1/233,016.89; 1/20,480)[G 1]
37,226
  1. 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 is increased when wearing a Ring of wealth.


Trivia[]

  • 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.

References[]

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