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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 5 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.

Drops

Charms(m)

No charmGold charmGreen charmCrimson charmBlue charm
71–73%6–7%3–4%16–18%0.9–1.3%
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 (requires JavaScript).

Main drop

Item Quantity Rarity GE price
Black full helmBlack full helm1Common2,375
Mithril sq shieldMithril sq shield1Uncommon2,669
BattlestaffBattlestaff(m)1Uncommon3,660
Mithril platebodyMithril platebody1Rare2,540
Rune scimitarRune scimitar1Very rare14,957
Grimy iritGrimy irit(m)1Common3,835
Grimy guamGrimy guam1Common[1]353
Grimy marrentillGrimy marrentill1Common[1]3,088
Grimy tarrominGrimy tarromin1Common[1]88
Grimy harralanderGrimy harralander(m)1Common290
Grimy ranarrGrimy ranarr(m)1Rare1,763
Grimy cadantineGrimy cadantine(m)1Rare2,229
Grimy avantoeGrimy avantoe(m)1Rare1,086
Grimy kwuarmGrimy kwuarm(m)1Rare10,762
Grimy lantadymeGrimy lantadyme(m)1Rare7,669
Grimy dwarf weedGrimy dwarf weed(m)1Rare7,496
Red spiders' eggsRed spiders' eggs1Rare1,558
Mithril oreMithril ore2–3 (noted)Common422–633
CoalCoal1–2 (noted)Uncommon109–218
Cosmic runeCosmic rune1–2Common452–904
Nature runeNature rune1–2Uncommon440–880
Chaos runeChaos rune1–18Common114–2,052
Earth runeEarth rune1–22Common18–396
Coins 100Coins20–150Common20–150
CarapaceCarapace1Common680
Rare drop tableRare drop table1RareNot sold
Uncut emeraldUncut emerald1Unknown795

Tertiary drops

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 table

This monster has access to the rare drop table.
Luck-enhancing items such as a ring of wealth or luck of the dwarves are not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE price
Coins 250Coins250–500Common250–500
Uncut sapphireUncut sapphire1Common466
Uncut emeraldUncut emerald1Common795
Uncut rubyUncut ruby1Common1,235
Uncut diamondUncut diamond1Common2,734
Uncut diamondUncut diamond45–55 (noted)Rare123,030–150,370
Loop half of a keyLoop half of a key1Common12,089
Tooth half of a keyTooth half of a key1Common15,061
Uncut dragonstoneUncut dragonstone1Uncommon12,496
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare562,320–687,280
Dragon longswordDragon longsword1Common58,355
Dragon spearDragon spear1Rare36,238
BattlestaffBattlestaff180–220 (noted)Rare658,800–805,200
Rune javelinRune javelin5Rare910
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare63,988
Dragon helmDragon helm1Uncommon59,023
Rune arrowheads 5Rune arrowheads113–137Common14,690–17,810
Onyx bolts 5Onyx bolts135–165Very rare1,069,335–1,306,965
Chaos talismanChaos talisman1Rare1,143
Nature talismanNature talisman1Rare1,156
Water talismanWater talisman65–82 (noted)Rare243,230–306,844
Earth talismanEarth talisman65–82 (noted)Rare12,935–16,318
Fire talismanFire talisman25–35 (noted)Rare10,875–15,225
Raw lobsterRaw lobster135–165 (noted)Common51,975–63,525
Raw sharkRaw shark225–275 (noted)Uncommon202,725–247,775
Big bonesBig bones68–82 (noted)Uncommon11,084–13,366
Dragon bonesDragon bones180–220 (noted)Rare314,100–383,900
CoalCoal200–1,100 (noted)Uncommon21,800–119,900
Gold oreGold ore90–110 (noted)Common33,300–40,700
Adamantite oreAdamantite ore180–220 (noted)Uncommon42,840–52,360
Adamant barAdamant bar14–16 (noted)Common19,992–22,848
Adamant barAdamant bar135–165 (noted)Rare192,780–235,620
Runite oreRunite ore90–110 (noted)Rare91,980–112,420
Rune barRune bar(noted)Common6,810
Rune barRune bar45–55 (noted)Rare102,150–124,850
Grimy torstolGrimy torstol90–110 (noted)Uncommon674,100–823,900
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon191,520–234,080
Super restore (4)Super restore (4)45–55 (noted)Uncommon174,195–212,905
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon150,390–183,810
Lantadyme seed 5Lantadyme seed14–16Uncommon8,162–9,328
Dwarf weed seed 5Dwarf weed seed14–16Uncommon5,992–6,848
Magic seed 5Magic seed4Uncommon152,936
Palm tree seed 5Palm tree seed10Rare419,720
FlaxFlax450–550 (noted)Common43,200–52,800
Molten glassMolten glass45–55 (noted)Common12,555–15,345
Soft claySoft clay450–550 (noted)Uncommon256,050–312,950
Yew logsYew logs68–82 (noted)Uncommon11,832–14,268
Yew logsYew logs675–825 (noted)Rare117,450–143,550
Teak plankTeak plank45–55 (noted)Uncommon13,545–16,555
Mahogany plankMahogany plank270–330 (noted)Rare224,370–274,230
Blurberry SpecialBlurberry Special1Uncommon9,513
Vecna skullVecna skull1Very rare*95,118
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,590,640,621
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 drops

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
Mimic kill tokenMimic kill token1Very rare9,345
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