Thermonuclear smoke devil

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Thermonuclear smoke devil
Thermonuclear smoke devil.png
Released10 April 2014 (Update)
MembersYes
Combat level301
Size4x4
ExamineWoah.
Combat info
Max hit8
AggressiveNo
PoisonousNo
Attack styleTypeless Magical ranged
Attack speedMonster attack speed 2.png
Respawn time15 ticks (9 seconds)
Slayer icon.png Slayer info
Slayer level93
Slayer XP240 xp
CategoryBosses, Smoke Devils
Assigned byKonar chathead.png Nieve chathead.png Duradel chathead.png
Combat icon.png Combat stats
Hitpoints icon.pngAttack icon.pngStrength icon.pngDefence icon.pngMagic icon.pngRanged icon.png
2402302203601310
Attack icon.png Aggressive stats
Monster attack bonusMonster strength bonusMagic icon.pngMonster magic strength bonusRanged icon.pngMonster ranged strength bonus
+0+0+0+0+0+0
Defence icon.png Defensive stats
White dagger.pngWhite scimitar.pngWhite warhammer.pngMagic icon.pngRanged icon.png
+11+4+9+800+900
Immunities
PoisonImmune
VenomImmune
CannonsNot immune
ThrallsNot immune
Advanced data
Monster ID499
Smoke devil icon.png

The thermonuclear smoke devil, often referred to as Thermy, is the boss version of the smoke devil, found in the Smoke Devil Dungeon. It requires a minimum of 93 Slayer to damage. 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, Jar of smoke and the pet smoke devil. It drops the occult necklace at a higher rate than smoke devils do.

Unlike most NPCs, the Thermonuclear smoke devil is always able to walk through other monsters/players. This is to prevent players from safespotting the boss using the smoke devils found in its lair.

A dwarf multicannon cannot be used inside the boss room. If it is set up, the cannon will be destroyed (as in the lairs of the KBD and KQ).

Location[edit | edit source]

Location Levels Members Spawns Map
Smoke Devil Dungeon301Member icon.png1Maplink

Drops[edit | edit source]

Drop rates estimated based on 1,059,303 kills from the Drop Rate Project, unless otherwise cited.

The average Thermonuclear smoke devil kill is worth 22,560.62.

The average Thermonuclear smoke devil kill while on a Konar task is worth 24,657.81.

100%[edit | edit source]

Item Quantity Rarity Price High Alch
Ashes.png: Thermonuclear smoke devil drops Ashes with rarity Always in quantity 1Ashes1Always581

Weapons and armour[edit | edit source]

Item Quantity Rarity Price High Alch
Rune dagger.png: Thermonuclear smoke devil drops Rune dagger with rarity 5/107 in quantity 1Rune dagger15/1074,4284,800
Rune chainbody.png: Thermonuclear smoke devil drops Rune chainbody with rarity 4/107 in quantity 1Rune chainbody14/10729,42930,000
Red d'hide body.png: Thermonuclear smoke devil drops Red d'hide body with rarity 3/107 in quantity 1Red d'hide body13/1076,1286,738
Rune battleaxe.png: Thermonuclear smoke devil drops Rune battleaxe with rarity 3/107 in quantity 1Rune battleaxe13/10724,61524,960
Mystic air staff.png: Thermonuclear smoke devil drops Mystic air staff with rarity 3/107 in quantity 1Mystic air staff13/10725,13725,500
Mystic fire staff.png: Thermonuclear smoke devil drops Mystic fire staff with rarity 3/107 in quantity 1Mystic fire staff13/10725,26225,500
Rune scimitar.png: Thermonuclear smoke devil drops Rune scimitar with rarity 2/107 in quantity 1Rune scimitar12/10715,10315,360
Rune knife(p++).png: Thermonuclear smoke devil drops Rune knife(p++) with rarity 1/107 in quantity 50Rune knife(p++)501/10716,2504,950
Dragon scimitar.png: Thermonuclear smoke devil drops Dragon scimitar with rarity 1/107 in quantity 1Dragon scimitar11/10759,78360,000
Ancient staff.png: Thermonuclear smoke devil drops Ancient staff with rarity 1/107 in quantity 1Ancient staff11/10772,59260,000
Occult necklace.png: Thermonuclear smoke devil drops Occult necklace with rarity 1/350 in quantity 1Occult necklace11/350[1]576,47727,000
Smoke battlestaff.png: Thermonuclear smoke devil drops Smoke battlestaff with rarity 1/512 in quantity 1Smoke battlestaff11/512[1]1,699,6419,300
Dragon chainbody.png: Thermonuclear smoke devil drops Dragon chainbody with rarity 1/2,000 in quantity 1Dragon chainbody11/2,000[1]153,050150,000

Runes and ammunition[edit | edit source]

Item Quantity Rarity Price High Alch
Smoke rune.png: Thermonuclear smoke devil drops Smoke rune with rarity 10/107 in quantity 100Smoke rune10010/1079,6001,200
Air rune.png: Thermonuclear smoke devil drops Air rune with rarity 8/107 in quantity 300Air rune3008/1071,500600
Soul rune.png: Thermonuclear smoke devil drops Soul rune with rarity 8/107 in quantity 60Soul rune608/10711,52010,800
Rune arrow.png: Thermonuclear smoke devil drops Rune arrow with rarity 2/107 in quantity 100Rune arrow1002/1077,20024,000

Consumables[edit | edit source]

Item Quantity Rarity Price High Alch
Ugthanki kebab.png: Thermonuclear smoke devil drops Ugthanki kebab with rarity 1/107 in quantity 3Ugthanki kebab31/1071,75236
Tuna potato.png: Thermonuclear smoke devil drops Tuna potato with rarity 3/107 in quantity 3Tuna potato33/1073,486201
Sanfew serum(4).png: Thermonuclear smoke devil drops Sanfew serum(4) with rarity 3/107 in quantity 2Sanfew serum(4)23/10769,820360
Prayer potion(4).png: Thermonuclear smoke devil drops Prayer potion(4) with rarity 1/107 in quantity 2Prayer potion(4)21/10718,400228

Resources[edit | edit source]

Item Quantity Rarity Price High Alch
Pure essence.png: Thermonuclear smoke devil drops Pure essence with rarity 2/107 in quantity 300 (noted)Pure essence300 (noted)2/107600600
Molten glass.png: Thermonuclear smoke devil drops Molten glass with rarity 2/107 in quantity 100 (noted)Molten glass100 (noted)2/10710,200100
Mithril bar.png: Thermonuclear smoke devil drops Mithril bar with rarity 2/107 in quantity 20 (noted)Mithril bar20 (noted)2/10714,4803,600
Coal.png: Thermonuclear smoke devil drops Coal with rarity 2/107 in quantity 150 (noted)Coal150 (noted)2/10725,6504,050
Magic logs.png: Thermonuclear smoke devil drops Magic logs with rarity 2/107 in quantity 20 (noted)Magic logs20 (noted)2/10721,5203,840
Gold ore.png: Thermonuclear smoke devil drops Gold ore with rarity 2/107 in quantity 200 (noted)Gold ore200 (noted)2/10754,00018,000
Diamond.png: Thermonuclear smoke devil drops Diamond with rarity 1/107 in quantity 10 (noted)Diamond10 (noted)1/10718,13012,000

Other[edit | edit source]

Item Quantity Rarity Price High Alch
Coins_10000.png: Thermonuclear smoke devil drops Coins with rarity 15/107 in quantity 10000-20000Coins10,000–20,00015/10710,000–20,00010,000–20,000
Tinderbox.png: Thermonuclear smoke devil drops Tinderbox with rarity 1/107 in quantity 1Tinderbox11/107540
Fire talisman.png: Thermonuclear smoke devil drops Fire talisman with rarity 1/107 in quantity 1Fire talisman11/1072,5672
Bullseye lantern.png: Thermonuclear smoke devil drops Bullseye lantern with rarity 1/107 in quantity 1Bullseye lantern11/107893252
Desert goat horn.png: Thermonuclear smoke devil drops Desert goat horn with rarity 2/107 in quantity 50 (noted)Desert goat horn50 (noted)2/1071,950350
Grimy toadflax.png: Thermonuclear smoke devil drops Grimy toadflax with rarity 2/107 in quantity 15 (noted)Grimy toadflax15 (noted)2/10741,340165
Onyx bolt tips.png: Thermonuclear smoke devil drops Onyx bolt tips with rarity 2/107 in quantity 12Onyx bolt tips122/10798,1967,200
Snapdragon seed.png: Thermonuclear smoke devil drops Snapdragon seed with rarity 2/107 in quantity 2Snapdragon seed22/10793,50872
Grapes.png: Thermonuclear smoke devil drops Grapes with rarity 1/107 in quantity 100 (noted)Grapes100 (noted)1/1072,4000
Magic seed.png: Thermonuclear smoke devil drops Magic seed with rarity 1/107 in quantity 1Magic seed11/107[1]80,650253
Dragonstone ring.png: Thermonuclear smoke devil drops Dragonstone ring with rarity 1/107 in quantity 1Dragonstone ring11/10711,79310,575
Crystal key.png: Thermonuclear smoke devil drops Crystal key with rarity 1/107 in quantity 1Crystal key11/107[2]22,54990

Gem drop table[edit | edit source]

There is a 2/107 chance of rolling the gem drop table.

Item Quantity Rarity Price High Alch
This does not exist.NothingN/A1/107.2; Never[d 1]N/AN/A
Uncut sapphire.png: Thermonuclear smoke devil drops Uncut sapphire with rarity 1/214 in quantity 1Uncut sapphire11/214; 1/108.67[d 2]26515
Uncut emerald.png: Thermonuclear smoke devil drops Uncut emerald with rarity 1/428 in quantity 1Uncut emerald11/428; 1/217.34[d 2]49630
Uncut ruby.png: Thermonuclear smoke devil drops Uncut ruby with rarity 1/856 in quantity 1Uncut ruby11/856; 1/434.69[d 2]1,14860
Nature talisman.png: Thermonuclear smoke devil drops Nature talisman with rarity 1/2,282.67 in quantity 1Nature talisman11/2,282.67; 1/1,159.17[d 2]2192
Uncut diamond.png: Thermonuclear smoke devil drops Uncut diamond with rarity 1/3,424 in quantity 1Uncut diamond11/3,424; 1/1,738.75[d 2]3,033120
Loop half of key.png: Thermonuclear smoke devil drops Loop half of key with rarity 1/6,848 in quantity 1Loop half of key11/6,848; 1/3,477.5[d 2]11,48160
Tooth half of key.png: Thermonuclear smoke devil drops Tooth half of key with rarity 1/6,848 in quantity 1Tooth half of key11/6,848; 1/3,477.5[d 2]9,57460
Rune javelin.png: Thermonuclear smoke devil drops Rune javelin with rarity 1/6,848 in quantity 5Rune javelin51/6,848; 1/3,477.5[d 2]7901,200
Rune spear.png: Thermonuclear smoke devil drops Rune spear with rarity 1/109,568 in quantity 1Rune spear11/109,568; 1/6,520.31[d 2][d 3]11,95012,480
Shield left half.png: Thermonuclear smoke devil drops Shield left half with rarity 1/219,136 in quantity 1Shield left half11/219,136; 1/13,040.62[d 2][d 3]66,06766,000
Dragon spear.png: Thermonuclear smoke devil drops Dragon spear with rarity 1/292,181.33 in quantity 1Dragon spear11/292,181.33; 1/17,387.5[d 2][d 3]37,15337,440
  1. ^ The "nothing" drop is removed while wearing a ring of wealth.
  2. ^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.
  3. ^ 3.0 3.1 3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

Tertiary[edit | edit source]

Item Quantity Rarity Price High Alch
Brimstone key.png: Thermonuclear smoke devil drops Brimstone key with rarity 1/47 in quantity 1Brimstone key11/47[d 1]Not soldN/A
Clue scroll (hard).png: Thermonuclear smoke devil drops Clue scroll (hard) with rarity 1/96 in quantity 1Clue scroll (hard)11/96[d 2][3]Not sold12
Clue scroll (elite).png: Thermonuclear smoke devil drops Clue scroll (elite) with rarity 1/500 in quantity 1Clue scroll (elite)11/500[d 3][1]Not sold12
Jar of smoke.png: Thermonuclear smoke devil drops Jar of smoke with rarity 1/2,000 in quantity 1Jar of smoke11/2,00026,5640
Pet smoke devil.png: Thermonuclear smoke devil drops Pet smoke devil with rarity 1/3,000 in quantity 1Pet smoke devil11/3,000[4]Not soldN/A
  1. ^ Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.
  2. ^ The hard clue scroll drop rate increases to 1/91 with the completion of the hard combat achievements.
  3. ^ The elite clue scroll drop rate increases to 1/475 with the completion of the elite combat achievements.

Combat Achievements[edit | edit source]

NameDescriptionTypeTier
Hazard PreventionKill the Thermonuclear Smoke Devil without it hitting anyone.PerfectionElite
Spec'd OutKill the Thermonuclear Smoke Devil using only special attacks.RestrictionElite
Thermonuclear VeteranKill the Thermonuclear Smoke Devil 20 times.Kill CountElite

Changes[edit | edit source]

Date Changes
17 March 2021
(update | poll)
  • Added the Jar of Smoke to the tertiary drop table
  • Reduced the chance of dropping Tinderboxes, Bullseye Lanterns, Pure Essence and Kebabs.
25 June 2015
(update | poll)

Added a 'peek' option to the entrance of this boss, allowing players to see the number of other players currently in the boss room.

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]

A player transformed into a Thermy snowman.
  • The thermonuclear smoke devil was graphically updated on 27 September 2018 as part of an 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.
  • Attempting to attack the thermonuclear smoke devil with a boosted Slayer level of at least 93 will yield the message: Although Brieve will allow you to kill this boss off-task for the Achievement Diary, the level 93 requirement still applies. Stat-boosts are not accepted.
  • Players can transform into a Thermy snowman by using a snowman ring, which resembles the thermonuclear smoke devil.

References[edit | edit source]

  1. ^ 1.0 1.1 1.2 1.3 1.4 Envision. "Drop Rates V2." Old School RuneScape Forums.
  2. ^ Jagex. Mod Ash's Twitter account. 9 March 2016. (Archived from the original on 25 March 2019.) Mod Ash: "1/128. I hope you got some other decent stuff while that was going on."
  3. ^ Jagex. The Kebos Lowlands. 10 Jan 2019. (Archived from the original on 15 Mar 2019.)*
  4. ^ Jagex. Mod JohnC's Twitter account. 15 September 2014. (Archived from the original on 15 September 2014.) Mod JohnC: "Kraken, Thermy & Penance Queen pet drop rates - DKS for the final reveal next week!"