Thermonuclear smoke devil

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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.
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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 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]

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

100% drops[edit | edit source]

Item Quantity Rarity GE market price
Ashes.png: Thermonuclear smoke devil can drop the item Ashes with rarity Always in quantity 1 Ashes 1 Always 30

Weapons[edit | edit source]

Item Quantity Rarity GE market price
Rune dagger.png: Thermonuclear smoke devil can drop the item Rune dagger with rarity Uncommon in quantity 1 Rune dagger 1 Uncommon (~5/128) 4,529
Rune battleaxe.png: Thermonuclear smoke devil can drop the item Rune battleaxe with rarity Uncommon in quantity 1 Rune battleaxe 1 Uncommon (~3/128) 24,574
Mystic air staff.png: Thermonuclear smoke devil can drop the item Mystic air staff with rarity Uncommon in quantity 1 Mystic air staff 1 Uncommon (~3/128) 25,208
Mystic fire staff.png: Thermonuclear smoke devil can drop the item Mystic fire staff with rarity Uncommon in quantity 1 Mystic fire staff 1 Uncommon (~3/128) 25,323
Rune scimitar.png: Thermonuclear smoke devil can drop the item Rune scimitar with rarity Uncommon in quantity 1 Rune scimitar 1 Uncommon (~2/128) 15,089
Dragon scimitar.png: Thermonuclear smoke devil can drop the item Dragon scimitar with rarity Rare in quantity 1 Dragon scimitar 1 Rare (~1/128) 59,678
Ancient staff.png: Thermonuclear smoke devil can drop the item Ancient staff with rarity Rare in quantity 1 Ancient staff 1 Rare (1/129)[2] 70,713
Smoke battlestaff.png: Thermonuclear smoke devil can drop the item Smoke battlestaff with rarity Rare in quantity 1 Smoke battlestaff 1 Rare (1/512) 3,654,350

Armour[edit | edit source]

Item Quantity Rarity GE market price
Red d'hide body.png: Thermonuclear smoke devil can drop the item Red d'hide body with rarity Uncommon in quantity 1 Red d'hide body 1 Uncommon (~3.5/128) 6,274
Rune chainbody.png: Thermonuclear smoke devil can drop the item Rune chainbody with rarity Uncommon in quantity 1 Rune chainbody 1 Uncommon (~3/128) 29,605
Occult necklace.png: Thermonuclear smoke devil can drop the item Occult necklace with rarity Rare in quantity 1 Occult necklace 1 Rare (1/350) 919,498
Dragon chainbody.png: Thermonuclear smoke devil can drop the item Dragon chainbody with rarity Very rare in quantity 1 Dragon chainbody 1 Very rare (1/2,000) 920,997

Runes/Ammunition[edit | edit source]

Item Quantity Rarity GE market price
Smoke rune.png: Thermonuclear smoke devil can drop the item Smoke rune with rarity Common in quantity 100 Smoke rune 100 Common (~9/128) 7,100
Air rune.png: Thermonuclear smoke devil can drop the item Air rune with rarity Common in quantity 300 Air rune 300 Common (~8/128) 1,500
Soul rune.png: Thermonuclear smoke devil can drop the item Soul rune with rarity Common in quantity 60 Soul rune 60 Common (~7/128) 8,760
Rune arrow.png: Thermonuclear smoke devil can drop the item Rune arrow with rarity Uncommon in quantity 100 Rune arrow 100 Uncommon (~2/128) 8,700
Rune knife(p++).png: Thermonuclear smoke devil can drop the item Rune knife(p++) with rarity Rare in quantity 50 Rune knife(p++) 50 Rare (~0.5/128) 28,350

Seeds[edit | edit source]

Item Quantity Rarity GE market price
Snapdragon seed.png: Thermonuclear smoke devil can drop the item Snapdragon seed with rarity Uncommon in quantity 2 Snapdragon seed 2 Uncommon (~2/128) 106,322
Magic seed.png: Thermonuclear smoke devil can drop the item Magic seed with rarity Rare in quantity 1 Magic seed 1 Rare (~1/128) 134,515

Materials[edit | edit source]

Item Quantity Rarity GE market price
Pure essence.png: Thermonuclear smoke devil can drop the item Pure essence with rarity Common in quantity 300 (noted) Pure essence 300 (noted) Common (~5/128) 900
Desert goat horn.png: Thermonuclear smoke devil can drop the item Desert goat horn with rarity Uncommon in quantity 50 (noted) Desert goat horn 50 (noted) Uncommon (~2/128) 23,950
Molten glass.png: Thermonuclear smoke devil can drop the item Molten glass with rarity Uncommon in quantity 100 (noted) Molten glass 100 (noted) Uncommon (~2/128) 15,100
Mithril bar.png: Thermonuclear smoke devil can drop the item Mithril bar with rarity Uncommon in quantity 20 (noted) Mithril bar 20 (noted) Uncommon (~2/128) 13,740
Grimy toadflax.png: Thermonuclear smoke devil can drop the item Grimy toadflax with rarity Uncommon in quantity 15 (noted) Grimy toadflax 15 (noted) Uncommon (~2/128) 17,160
Coal.png: Thermonuclear smoke devil can drop the item Coal with rarity Uncommon in quantity 150 (noted) Coal 150 (noted) Uncommon (~2/128) 23,850
Onyx bolt tips.png: Thermonuclear smoke devil can drop the item Onyx bolt tips with rarity Uncommon in quantity 12 Onyx bolt tips 12 Uncommon (~2/128) 100,296
Magic logs.png: Thermonuclear smoke devil can drop the item Magic logs with rarity Uncommon in quantity 20 (noted) Magic logs 20 (noted) Uncommon (~2/128) 22,960
Gold ore.png: Thermonuclear smoke devil can drop the item Gold ore with rarity Uncommon in quantity 200 (noted) Gold ore 200 (noted) Uncommon (~2/128) 72,200
Grapes.png: Thermonuclear smoke devil can drop the item Grapes with rarity Rare in quantity 100 (noted) Grapes 100 (noted) Rare (~1/128) 13,500
Diamond.png: Thermonuclear smoke devil can drop the item Diamond with rarity Rare in quantity 10 (noted) Diamond 10 (noted) Rare (~1/128) 20,040

Consumables[edit | edit source]

Item Quantity Rarity GE market price
Ugthanki kebab.png: Thermonuclear smoke devil can drop the item Ugthanki kebab with rarity Uncommon in quantity 3 Ugthanki kebab 3 Uncommon (~4.5/128) 1,947
Tuna potato.png: Thermonuclear smoke devil can drop the item Tuna potato with rarity Uncommon in quantity 3 Tuna potato 3 Uncommon (~3.5/128) 3,264
Sanfew serum(4).png: Thermonuclear smoke devil can drop the item Sanfew serum(4) with rarity Uncommon in quantity 2 Sanfew serum(4) 2 Uncommon (~3/128) 50,706
Prayer potion(4).png: Thermonuclear smoke devil can drop the item Prayer potion(4) with rarity Rare in quantity 2 Prayer potion(4) 2 Rare (~1/128) 17,944

Other[edit | edit source]

Item Quantity Rarity GE market price
Coins 10000.png: Thermonuclear smoke devil can drop the item Coins with rarity Common in quantity 10000-20000 Coins 10,000–20,000 Common (~14/128) Not sold
Tinderbox.png: Thermonuclear smoke devil can drop the item Tinderbox with rarity Common in quantity 1 Tinderbox 1 Common (~9.5/128) 84
Bullseye lantern.png: Thermonuclear smoke devil can drop the item Bullseye lantern (unlit) with rarity Uncommon in quantity 1 Bullseye lantern (unlit) 1 Uncommon (~4/128) 925
Fire talisman.png: Thermonuclear smoke devil can drop the item Fire talisman with rarity Uncommon in quantity 1 Fire talisman 1 Uncommon (~4/128) 4,151
Gem drop table.png: Thermonuclear smoke devil can drop the item Gem drop table with rarity Uncommon in quantity 1 Gem drop table 1 Uncommon (~3/128) Not sold
Dragonstone ring.png: Thermonuclear smoke devil can drop the item Dragonstone ring with rarity Uncommon in quantity 1 Dragonstone ring 1 Uncommon (~1.5/128) 12,381
Crystal key.png: Thermonuclear smoke devil can drop the item Crystal key with rarity Rare in quantity 1 Crystal key 1 Rare (1/128)[3] 22,907

Tertiary drops[edit | edit source]

Item Quantity Rarity GE market price
Brimstone key.png: Thermonuclear smoke devil can drop the item Brimstone key with rarity Uncommon in quantity 1 Brimstone key 1 Uncommon (1/59.8)[4] Not sold
Clue scroll (hard).png: Thermonuclear smoke devil can drop the item Clue scroll (hard) with rarity Uncommon in quantity 1 Clue scroll (hard) 1 Uncommon (1/96) Not sold
Clue scroll (elite).png: Thermonuclear smoke devil can drop the item Clue scroll (elite) with rarity Rare in quantity 1 Clue scroll (elite) 1 Rare (1/500) Not sold
Pet smoke devil.png: Thermonuclear smoke devil can drop the item Pet smoke devil with rarity Very rare in quantity 1 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.png: Thermonuclear smoke devil can drop the item Uncut sapphire with rarity Rare in quantity 1 Uncut sapphire 1 Rare (1/170.67; 1/85.33)[G 1] 616
Uncut emerald.png: Thermonuclear smoke devil can drop the item Uncut emerald with rarity Rare in quantity 1 Uncut emerald 1 Rare (1/341.33; 1/170.67)[G 1] 812
Uncut ruby.png: Thermonuclear smoke devil can drop the item Uncut ruby with rarity Rare in quantity 1 Uncut ruby 1 Rare (1/682.67; 1/341.33)[G 1] 1,418
Nature talisman.png: Thermonuclear smoke devil can drop the item Nature talisman with rarity Very rare in quantity 1 Nature talisman 1 Very rare (1/1,820.44; 1/910.22)[G 1] Not sold
Uncut diamond.png: Thermonuclear smoke devil can drop the item Uncut diamond with rarity Very rare in quantity 1 Uncut diamond 1 Very rare (1/2,730.67; 1/1,365.33)[G 1] 2,973
Rune javelin.png: Thermonuclear smoke devil can drop the item Rune javelin with rarity Very rare in quantity 5 Rune javelin 5 Very rare (1/5,461.33; 1/2,730.67)[G 1] 790
Loop half of key.png: Thermonuclear smoke devil can drop the item Loop half of key with rarity Very rare in quantity 1 Loop half of key 1 Very rare (1/5,461.33; 1/2,730.67)[G 1] 12,063
Tooth half of key.png: Thermonuclear smoke devil can drop the item Tooth half of key with rarity Very rare in quantity 1 Tooth half of key 1 Very rare (1/5,461.33; 1/2,730.67)[G 1] 9,895
Rune spear.png: Thermonuclear smoke devil can drop the item Rune spear with rarity Very rare in quantity 1 Rune spear 1 Very rare (1/87,381.33; 1/10,240)[G 1] 12,073
Shield left half.png: Thermonuclear smoke devil can drop the item Shield left half with rarity Very rare in quantity 1 Shield left half 1 Very rare (1/174,762.67; 1/20,480)[G 1] 65,537
Dragon spear.png: Thermonuclear smoke devil can drop the item Dragon spear with rarity Very rare in quantity 1 Dragon spear 1 Very rare (1/233,016.89; 1/27,306.67)[G 1] 37,591
  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 The drop rate is increased when wearing a Ring of wealth.

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, along with the Kraken, are the only slayer bosses that can be fought with another player.

References[edit | edit source]