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Killerwatt icon

Killerwatts are Slayer monsters that require level 37 Slayer to kill. Wear insulated boots to enter the Killerwatt plane; if you are not wearing insulated boots before you enter the portal, Professor Oddenstein will warn you. If you enter without them or take them off after you are inside, you will get hit for up to 1500 life points by the thunderclouds inside the area.

Killerwatts initially appear as passive spheres of electricity, but when they are attacked they become aggressive immediately, growing arms and a tail. Like aviantese, they will retaliate as soon as the attack option is selected, regardless of whether the player has landed a hit on them.

Killerwatt drops include common fire and air runes, and the occasional air or fire battlestaff drop. At around 50 Defence, food isn't required with good armour as they do not hit often. Players with level 55 Magic can use the fire and nature rune drops to turn the other drops into coins. Killerwatts also drop ashes; players can bring urns for Prayer experience.

Killerwatts are much more dangerous than their combat level suggests; both their ranged and melee attacks are as fast as dual wielded "fastest" weapons, and their ranged attacks are exceptionally accurate. Instead of relying on protection prayers, it is better to bring food and use your prayer for attack boosts. Players cannot use the Dwarf multicannon in the Killerwatt plane.

Storm cloud

A storm cloud


Killerwatt portal

The portal

Killerwatts can be found on the Killerwatt plane, by stepping through a portal on the top floor of Draynor Manor. This area has flashing lights, and Oddenstein will warn players about this in case they are prone to epileptic seizures.

During the Enlightened Journey quest, it was revealed by the balloon travelling screen that killerwatts inhabit clouds. However, players cannot engage them in battle there.

Strengths and weaknessesEdit

Killerwatts use both ranged and melee, and can hit very rapidly. Their ranged attack are quite dangerous but their melee attacks are much milder. 

Their weakness is crush, therefore it is advised to bring a crush weapon such as a warhammer or mace. Wear melee armour to defend against the ranged attack; a full set of Void Knight equipment is also a good option, with its accuracy and damage bonuses.


Killerwatts attack in a manner similar to Aviansie; when they are attacked regardless of whether the player can hit them, they will immediately become aggressive. This can be taken advantage of, however, as if the killerwatt lands the first strike, it will only use its weaker melee attacks. To make this happen, select a killerwatt at a distance. You must not be standing in your target's area (you can see that the clouds form small separate territories once you know what to look for). Once the killerwatt becomes aggressive, immediately click the ground near you to avoid running towards it. Your target is now considered the "attacker" and will track you while you approach. When you get near, it will attack with melee.

There are two potentially serious mistakes you can make; you can select a target that is too close, and find yourself under heavy ranged fire. You can also accidentally click on another killerwatt while approaching your target, and be under unexpected ranged damage from the second killerwatt.  For low level fighters, damage will be immediate and serious.  Fortunately, the portal remains open at all times - if you find yourself under fire, run for the portal and exit the plane, reenter and try again. Because approaching your selected target is crucial, you might want to move in a spiral toward your selected target to avoid clicking its area until you are in melee combat. If you are having trouble managing your fights, disable 'run' and give yourself more time to plan.


100% dropsEdit

Item Quantity Rarity GE price
Impious ashesImpious ashes1Always126


Item Quantity Rarity GE price
Staff of airStaff of air1Uncommon1,151
Staff of fireStaff of fire1Uncommon2,071
Air battlestaffAir battlestaff1Rare8,283
Mystic fire staffMystic fire staff1Rare23,662


No charmGold charmGreen charmCrimson charmBlue charm
Represents a 90% confidence range.
Based on a sample of 24,153 kills.
1 charm is dropped at a time.
Add data to the log
(Requires JavaScript to be enabled)


Item Quantity Rarity GE price
Grimy guamGrimy guam1Common93
Grimy marrentillGrimy marrentill1Common124
Grimy tarrominGrimy tarromin1Common37
Grimy harralanderGrimy harralander1Common86
Grimy ranarrGrimy ranarr1Uncommon2,527
Grimy iritGrimy irit1Uncommon2,871
Grimy avantoeGrimy avantoe1Uncommon2,467
Grimy kwuarmGrimy kwuarm1Uncommon4,790
Grimy cadantineGrimy cadantine1Uncommon5,006
Grimy lantadymeGrimy lantadyme1Rare3,558
Grimy dwarf weedGrimy dwarf weed1Rare3,434


Item Quantity Rarity GE price
Air runeAir rune5Common110
Fire runeFire rune5Common340


Item Quantity Rarity GE price
Coins 250Coins300; 600Uncommon300–600
Iron barIron bar(noted)Uncommon1,056
Soda ashSoda ash(noted)Uncommon120
Spirit sapphireSpirit sapphire1RareNot sold
Spirit emeraldSpirit emerald1RareNot sold
Spirit rubySpirit ruby1RareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold

Rare drop table dropsEdit

This monster has access to the rare drop table.
A ring of wealth, luck potion or collector's insignia are not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE price
Coins 1000Coins250–500; 3,000Common250–3,000
Uncut sapphireUncut sapphire1Common875
Uncut emeraldUncut emerald1Common1,591
Uncut rubyUncut ruby1Common2,632
Uncut diamondUncut diamond1Common3,988
Uncut diamondUncut diamond45–55 (noted)Rare179,460–219,340
Loop half of a keyLoop half of a key1Common17,412
Tooth half of a keyTooth half of a key1Common25,579
Uncut dragonstoneUncut dragonstone1Uncommon11,862
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare533,790–652,410
Dragon longswordDragon longsword1Common57,453
Dragon spearDragon spear1Rare35,445
BattlestaffBattlestaff180–220 (noted)Rare1,259,640–1,539,560
Rune javelinRune javelin5Rare910
Rune platebodyRune platebody1Uncommon37,620
Rune platebodyRune platebody15–25 (noted)Rare564,300–940,500
Shield left halfShield left half1Rare63,809
Dragon helmDragon helm1Uncommon58,659
Rune arrowheads 5Rune arrowheads113–137Common19,662–23,838
Onyx bolts 5Onyx bolts135–165Very rare1,078,920–1,318,680
Vecna skullVecna skull1Very rare69,802
Chaos talismanChaos talisman1Rare1,172
Nature talismanNature talisman1Rare991
Water talismanWater talisman65–82 (noted)Rare375,700–473,960
Earth talismanEarth talisman65–82 (noted)Rare112,775–142,270
Fire talismanFire talisman25–35 (noted)Rare38,550–53,970
Raw lobsterRaw lobster135–165 (noted)Common13,635–16,665
Raw sharkRaw shark225–275 (noted)Uncommon234,450–286,550
Big bonesBig bones72–90 (noted)Uncommon27,288–34,110
Dragon bonesDragon bones180–220 (noted)Rare296,100–361,900
CoalCoal200–1,100 (noted)Uncommon36,200–199,100
Gold oreGold ore90–110 (noted)Common13,680–16,720
Adamantite oreAdamantite ore180–220 (noted)Uncommon225,720–275,880
Adamant barAdamant bar14–16 (noted)Common33,054–37,776
Adamant barAdamant bar135–165 (noted)Rare318,735–389,565
Runite oreRunite ore90–110 (noted)Rare1,031,760–1,261,040
Rune barRune bar(noted)Common41,886
Rune barRune bar45–55 (noted)Rare628,290–767,910
Grimy torstolGrimy torstol90–110 (noted)Uncommon387,360–473,440
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon341,370–417,230
Super restore (4)Super restore (4)45–55 (noted)Uncommon228,105–278,795
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon143,280–175,120
Lantadyme seed 5Lantadyme seed14–16Uncommon13,328–15,232
Dwarf weed seed 5Dwarf weed seed14–16Uncommon13,286–15,184
Magic seed 5Magic seed4Uncommon483,020
Palm tree seed 5Palm tree seed10Rare1,675,240
FlaxFlax450–550 (noted)Common4,500–5,500
Molten glassMolten glass45–55 (noted)Common9,675–11,825
Soft claySoft clay450–550 (noted)Uncommon175,050–213,950
Yew logsYew logs68–82Uncommon12,852–15,498
Yew logsYew logs675–825 (noted)Rare127,575–155,925
Teak plankTeak plank45–55 (noted)Uncommon29,025–35,475
Mahogany plankMahogany plank270–330 (noted)Rare571,050–697,950
Brawling gloves (Melee)Brawling gloves (Melee)1Very rareNot sold
Brawling gloves (Magic)Brawling gloves (Magic)1Very rareNot sold
Brawling gloves (Ranged)Brawling gloves (Ranged)1Very rareNot sold
Brawling gloves (Agility)Brawling gloves (Agility)1Very rareNot sold
Brawling gloves (Cooking)Brawling gloves (Cooking)1Very rareNot sold
Brawling gloves (FM)Brawling gloves (FM)1Very rareNot sold
Brawling gloves (Fishing)Brawling gloves (Fishing)1Very rareNot sold
Brawling gloves (Hunter)Brawling gloves (Hunter)1Very rareNot sold
Brawling gloves (Mining)Brawling gloves (Mining)1Very rareNot sold
Brawling gloves (Prayer)Brawling gloves (Prayer)1Very rareNot sold
Brawling gloves (Smithing)Brawling gloves (Smithing)1Very rareNot sold
Brawling gloves (Thieving)Brawling gloves (Thieving)1Very rareNot sold
Brawling gloves (WC)Brawling gloves (WC)1Very rareNot sold
Crystal triskelion fragment 1Crystal triskelion fragment 11Very rareNot sold
Crystal triskelion fragment 2Crystal triskelion fragment 21Very rareNot sold
Crystal triskelion fragment 3Crystal triskelion fragment 31Very rareNot sold

Universal dropsEdit

Universal drops are dropped by nearly every monster outside of Daemonheim.
These drops are dropped alongside main drops.
Item Quantity Rarity GE price
Key tokenKey token1RareNot sold


  • The name is a play on "kilowatt", a unit of power, with the word "killer" included to imply their hostility, or that they may give a deadly amount of watts.
  • During the Enlightened Journey quest, it is revealed that Killerwatts live in the clouds over Gielinor.
  • In the Balloon transport system, the images of Killerwatts are what they looked like before their graphical update.
Facts about "Killerwatt"RDF feed
All Combat experience125.7 +
All Combat level61 +
All Is members onlytrue
All Release date20 February 2006 +
Combat experience125.7 +
Combat level61 +
Drop JSON{ "name": "Impious ashes", "quantity": [1,1], "rarity": "Always" }, { "name": "Staff of air", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Staff of fire", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Air battlestaff", "quantity": [1,1], "rarity": "Rare" }, { "name": "Mystic fire staff", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy guam", "quantity": [1,1], "rarity": "Common" }, { "name": "Grimy marrentill", "quantity": [1,1], "rarity": "Common" }, { "name": "Grimy tarromin", "quantity": [1,1], "rarity": "Common" }, { "name": "Grimy harralander", "quantity": [1,1], "rarity": "Common" }, { "name": "Grimy ranarr", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy irit", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy avantoe", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy kwuarm", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy cadantine", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy lantadyme", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy dwarf weed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Air rune", "quantity": [5,5], "rarity": "Common" }, { "name": "Fire rune", "quantity": [5,5], "rarity": "Common" }, { "name": "Coins", "quantity": [300,600], "rarity": "Uncommon" }, { "name": "Cannonball", "quantity": [3,3], "rarity": "Uncommon" }, { "name": "Iron bar", "quantity": [2,2], "rarity": "Uncommon" }, { "name": "Soda ash", "quantity": [2,2], "rarity": "Uncommon" }, { "name": "Spirit sapphire", "quantity": [1,1], "rarity": "Rare" }, { "name": "Spirit emerald", "quantity": [1,1], "rarity": "Rare" }, { "name": "Spirit ruby", "quantity": [1,1], "rarity": "Rare" }, { "name": "Starved ancient effigy", "quantity": [1,1], "rarity": "Very rare" } and { "name": "Key token", "quantity": [1,1], "rarity": "Rare" }
Drops itemImpious ashes +, Staff of air +, Staff of fire +, Air battlestaff +, Mystic fire staff +, Grimy guam +, Grimy marrentill +, Grimy tarromin +, Grimy harralander +, Grimy ranarr +, Grimy irit +, Grimy avantoe +, Grimy kwuarm +, Grimy cadantine +, Grimy lantadyme +, Grimy dwarf weed +, Air rune +, Fire rune +, Coins +, Cannonball +, Iron bar +, Soda ash +, Spirit sapphire +, Spirit emerald +, Spirit ruby +, Starved ancient effigy + and Key token +
Drops item from RDTCoins +, Uncut sapphire +, Uncut emerald +, Uncut ruby +, Uncut diamond +, Loop half of a key +, Tooth half of a key +, Uncut dragonstone +, Dragon longsword +, Dragon spear +, Battlestaff +, Rune javelin +, Rune platebody +, Shield left half +, Dragon helm +, Rune arrowheads +, Onyx bolts +, Vecna skull +, Chaos talisman +, Nature talisman +, Water talisman +, Earth talisman +, Fire talisman +, Raw lobster +, Raw shark +, Big bones +, Dragon bones +, Coal +, Gold ore +, Adamantite ore +, Adamant bar +, Runite ore +, Rune bar +, Grimy torstol +, Grimy snapdragon +, Super restore (4) +, Prayer potion (4) +, Lantadyme seed +, Dwarf weed seed +, Magic seed +, Palm tree seed +, Flax +, Molten glass +, Soft clay +, Yew logs +, Teak plank +, Mahogany plank +, Brawling gloves (Melee) +, Brawling gloves (Magic) +, Brawling gloves (Ranged) +, Brawling gloves (Agility) +, Brawling gloves (Cooking) +, Brawling gloves (FM) +, Brawling gloves (Fishing) +, Brawling gloves (Hunter) +, Brawling gloves (Mining) +, Brawling gloves (Prayer) +, Brawling gloves (Smithing) +, Brawling gloves (Thieving) +, Brawling gloves (WC) +, Crystal triskelion fragment 1 +, Crystal triskelion fragment 2 + and Crystal triskelion fragment 3 +
Is members onlytrue
Release date20 February 2006 +

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