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Cockroach worker

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Cockroach workers are found in the Stronghold of Player Safety. They are good non-member monsters for mid-levelled players to train on. They also drop Crimson charms quite often, making the Stronghold a popular place to obtain charms for training Summoning.

They can hit 50s and 60s very often if Rune armour or better is not worn. As they occupy 2x2 areas, rangers and mages may fight them in safe spots in Level 1 of the Stronghold. Two cockroach workers have their spawn points enclosed in a small room with an exit only one tile wide so they cannot attack a player fighting them with a Range or Magic attack style from outside of the room. However, workers' defences are rather high, making it harder for low and mid-level players to deal damage to it. For members, a halberd can be used for safe Melee training, as it can attack up to two spaces away from the player, allowing you to strike melee attacks without getting hit.

Many players take free food from the nearby fishing spot when training on cockroaches.

Also the Monastery is nearby for healing or using the altar (level 31 prayer needed).

Medium-levelled players will sometimes kill this monster for their decent stackable drops on free worlds, and for their relatively good crimson charm drop rate for their level. If you have a decent combat level +70s, you can gain up to 40 Crimson charm per hour. +90s would produce roughly 60 charms per hour.



No charmGold charmGreen charmCrimson charmBlue charm
Represents a 90% confidence range.
Based on a sample of 6,764 kills.
1 charm is dropped at a time.
Add data to the log
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Main dropEdit

Item Quantity Rarity GE price
Black full helmBlack full helm1Common1,093
Mithril sq shieldMithril sq shield1Uncommon1,956
Mithril platebodyMithril platebody1Rare2,419
Rune scimitarRune scimitar1Very rare14,741
Grimy iritGrimy irit(m)1Common2,715
Grimy guamGrimy guam1Common[1]71
Grimy marrentillGrimy marrentill1Common[1]110
Grimy tarrominGrimy tarromin1Common[1]35
Grimy harralanderGrimy harralander(m)1Common73
Grimy ranarrGrimy ranarr(m)1Rare2,498
Grimy cadantineGrimy cadantine(m)1Rare4,587
Grimy avantoeGrimy avantoe(m)1Rare2,393
Grimy kwuarmGrimy kwuarm(m)1Rare4,837
Grimy lantadymeGrimy lantadyme(m)1Rare3,615
Grimy dwarf weedGrimy dwarf weed(m)1Rare3,451
Red spiders' eggsRed spiders' eggs1Rare1,522
Mithril oreMithril ore2–3 (noted)Common478–717
CoalCoal1–2 (noted)Uncommon178–356
Cosmic runeCosmic rune1–2Common362–724
Nature runeNature rune1–2Uncommon434–868
Chaos runeChaos rune1–18Common67–1,206
Earth runeEarth rune1–22Common13–286
Coins 100Coins20–150Common20–150
Rare drop tableRare drop table1RareNot sold
Uncut emeraldUncut emerald1Unknown1,613

Tertiary dropsEdit

Item Quantity Rarity GE price
Spirit sapphireSpirit sapphire1RareNot sold
Spirit emeraldSpirit emerald1RareNot sold
Spirit rubySpirit ruby1RareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold
  1. ^ a b c Drops in free-to-play

Rare drop tableEdit

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 sapphire1Common888
Uncut emeraldUncut emerald1Common1,613
Uncut rubyUncut ruby1Common2,478
Uncut diamondUncut diamond1Common3,932
Uncut diamondUncut diamond45–55 (noted)Rare176,940–216,260
Loop half of a keyLoop half of a key1Common17,922
Tooth half of a keyTooth half of a key1Common24,854
Uncut dragonstoneUncut dragonstone1Uncommon12,200
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare549,000–671,000
Dragon longswordDragon longsword1Common57,185
Dragon spearDragon spear1Rare35,727
BattlestaffBattlestaff180–220 (noted)Rare1,267,920–1,549,680
Rune javelinRune javelin5Rare910
Rune platebodyRune platebody1Uncommon37,738
Rune platebodyRune platebody15–25 (noted)Rare566,070–943,450
Shield left halfShield left half1Rare64,000
Dragon helmDragon helm1Uncommon58,755
Rune arrowheads 5Rune arrowheads113–137Common20,001–24,249
Onyx bolts 5Onyx bolts135–165Very rare1,082,565–1,323,135
Vecna skullVecna skull1Very rare71,285
Chaos talismanChaos talisman1Rare1,039
Nature talismanNature talisman1Rare926
Water talismanWater talisman65–82 (noted)Rare364,845–460,266
Earth talismanEarth talisman65–82 (noted)Rare109,655–138,334
Fire talismanFire talisman25–35 (noted)Rare38,900–54,460
Raw lobsterRaw lobster135–165 (noted)Common13,365–16,335
Raw sharkRaw shark225–275 (noted)Uncommon236,250–288,750
Big bonesBig bones72–90 (noted)Uncommon25,920–32,400
Dragon bonesDragon bones180–220 (noted)Rare298,440–364,760
CoalCoal200–1,100 (noted)Uncommon35,600–195,800
Gold oreGold ore90–110 (noted)Common13,050–15,950
Adamantite oreAdamantite ore180–220 (noted)Uncommon204,120–249,480
Adamant barAdamant bar14–16 (noted)Common32,928–37,632
Adamant barAdamant bar135–165 (noted)Rare317,520–388,080
Runite oreRunite ore90–110 (noted)Rare1,034,460–1,264,340
Rune barRune bar(noted)Common42,018
Rune barRune bar45–55 (noted)Rare630,270–770,330
Grimy torstolGrimy torstol90–110 (noted)Uncommon383,940–469,260
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon376,380–460,020
Super restore (4)Super restore (4)45–55 (noted)Uncommon224,595–274,505
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon139,635–170,665
Lantadyme seed 5Lantadyme seed14–16Uncommon13,972–15,968
Dwarf weed seed 5Dwarf weed seed14–16Uncommon12,838–14,672
Magic seed 5Magic seed4Uncommon444,352
Palm tree seed 5Palm tree seed10Rare1,601,230
FlaxFlax450–550 (noted)Common4,500–5,500
Molten glassMolten glass45–55 (noted)Common10,125–12,375
Soft claySoft clay450–550 (noted)Uncommon182,250–222,750
Yew logsYew logs68–82Uncommon13,124–15,826
Yew logsYew logs675–825 (noted)Rare130,275–159,225
Teak plankTeak plank45–55 (noted)Uncommon27,720–33,880
Mahogany plankMahogany plank270–330 (noted)Rare557,280–681,120
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
Facts about "Cockroach worker"RDF feed
All Combat experience48.9 +
All Combat level30 +
All Is members onlyfalse
All Release date11 March 2008 +
Combat experience48.9 +
Combat level30 +
Drop JSON{ "name": "Black full helm", "quantity": [1,1], "rarity": "Common" }, { "name": "Mithril sq shield", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Battlestaff", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Mithril platebody", "quantity": [1,1], "rarity": "Rare" }, { "name": "Rune scimitar", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Grimy irit", "quantity": [1,1], "rarity": "Common" }, { "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": "Rare" }, { "name": "Grimy cadantine", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy avantoe", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy kwuarm", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy lantadyme", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy dwarf weed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Red spiders' eggs", "quantity": [1,1], "rarity": "Rare" }, { "name": "Mithril ore", "quantity": [2,3], "rarity": "Common" }, { "name": "Coal", "quantity": [1,2], "rarity": "Uncommon" }, { "name": "Cosmic rune", "quantity": [1,2], "rarity": "Common" }, { "name": "Nature rune", "quantity": [1,2], "rarity": "Uncommon" }, { "name": "Chaos rune", "quantity": [1,18], "rarity": "Common" }, { "name": "Earth rune", "quantity": [1,22], "rarity": "Common" }, { "name": "Coins", "quantity": [20,150], "rarity": "Common" }, { "name": "Carapace", "quantity": [1,1], "rarity": "Common" }, { "name": "Rare drop table", "quantity": [1,1], "rarity": "Rare" }, { "name": "Uncut emerald", "quantity": [1,1], "rarity": "Unknown" }, { "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 itemBlack full helm +, Mithril sq shield +, Battlestaff +, Mithril platebody +, Rune scimitar +, Grimy irit +, Grimy guam +, Grimy marrentill +, Grimy tarromin +, Grimy harralander +, Grimy ranarr +, Grimy cadantine +, Grimy avantoe +, Grimy kwuarm +, Grimy lantadyme +, Grimy dwarf weed +, Red spiders' eggs +, Mithril ore +, Coal +, Cosmic rune +, Nature rune +, Chaos rune +, Earth rune +, Coins +, Carapace +, Rare drop table +, Uncut emerald +, 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 onlyfalse
Release date11 March 2008 +

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