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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 helm1Common2,106
Mithril sq shieldMithril sq shield1Uncommon2,669
BattlestaffBattlestaff(m)1Uncommon3,360
Mithril platebodyMithril platebody1Rare2,540
Rune scimitarRune scimitar1Very rare14,957
Grimy iritGrimy irit(m)1Common4,754
Grimy guamGrimy guam1Common[1]594
Grimy marrentillGrimy marrentill1Common[1]3,466
Grimy tarrominGrimy tarromin1Common[1]97
Grimy harralanderGrimy harralander(m)1Common233
Grimy ranarrGrimy ranarr(m)1Rare1,982
Grimy cadantineGrimy cadantine(m)1Rare2,814
Grimy avantoeGrimy avantoe(m)1Rare1,325
Grimy kwuarmGrimy kwuarm(m)1Rare13,388
Grimy lantadymeGrimy lantadyme(m)1Rare10,038
Grimy dwarf weedGrimy dwarf weed(m)1Rare9,614
Red spiders' eggsRed spiders' eggs1Rare1,541
Mithril oreMithril ore2–3 (noted)Common464–696
CoalCoal1–2 (noted)Uncommon119–238
Cosmic runeCosmic rune1–2Common484–968
Nature runeNature rune1–2Uncommon463–926
Chaos runeChaos rune1–18Common132–2,376
Earth runeEarth rune1–22Common17–374
Coins 100Coins20–150Common20–150
CarapaceCarapace1Common651
Rare drop tableRare drop table1RareNot sold
Uncut emeraldUncut emerald1Unknown762

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 sapphire1Common427
Uncut emeraldUncut emerald1Common762
Uncut rubyUncut ruby1Common1,222
Uncut diamondUncut diamond1Common2,537
Uncut diamondUncut diamond45–55 (noted)Rare114,165–139,535
Loop half of a keyLoop half of a key1Common11,226
Tooth half of a keyTooth half of a key1Common15,344
Uncut dragonstoneUncut dragonstone1Uncommon11,843
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare532,935–651,365
Dragon longswordDragon longsword1Common58,004
Dragon spearDragon spear1Rare36,407
BattlestaffBattlestaff180–220 (noted)Rare604,800–739,200
Rune javelinRune javelin5Rare900
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare64,720
Dragon helmDragon helm1Uncommon58,818
Rune arrowheads 5Rune arrowheads113–137Common13,899–16,851
Onyx bolts 5Onyx bolts135–165Very rare1,046,385–1,278,915
Chaos talismanChaos talisman1Rare1,560
Nature talismanNature talisman1Rare1,249
Water talismanWater talisman65–82 (noted)Rare190,255–240,014
Earth talismanEarth talisman65–82 (noted)Rare12,220–15,416
Fire talismanFire talisman25–35 (noted)Rare8,125–11,375
Raw lobsterRaw lobster135–165 (noted)Common81,810–99,990
Raw sharkRaw shark225–275 (noted)Uncommon239,850–293,150
Big bonesBig bones68–82 (noted)Uncommon13,124–15,826
Dragon bonesDragon bones180–220 (noted)Rare417,960–510,840
CoalCoal200–1,100 (noted)Uncommon23,800–130,900
Gold oreGold ore90–110 (noted)Common34,650–42,350
Adamantite oreAdamantite ore180–220 (noted)Uncommon42,660–52,140
Adamant barAdamant bar14–16 (noted)Common17,724–20,256
Adamant barAdamant bar135–165 (noted)Rare170,910–208,890
Runite oreRunite ore90–110 (noted)Rare80,910–98,890
Rune barRune bar(noted)Common6,138
Rune barRune bar45–55 (noted)Rare92,070–112,530
Grimy torstolGrimy torstol90–110 (noted)Uncommon717,120–876,480
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon159,210–194,590
Super restore (4)Super restore (4)45–55 (noted)Uncommon160,470–196,130
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon163,125–199,375
Lantadyme seed 5Lantadyme seed14–16Uncommon31,486–35,984
Dwarf weed seed 5Dwarf weed seed14–16Uncommon20,986–23,984
Magic seed 5Magic seed4Uncommon396,664
Palm tree seed 5Palm tree seed10Rare881,090
FlaxFlax450–550 (noted)Common55,350–67,650
Molten glassMolten glass45–55 (noted)Common16,200–19,800
Soft claySoft clay450–550 (noted)Uncommon255,600–312,400
Yew logsYew logs68–82 (noted)Uncommon13,736–16,564
Yew logsYew logs675–825 (noted)Rare136,350–166,650
Teak plankTeak plank45–55 (noted)Uncommon13,500–16,500
Mahogany plankMahogany plank270–330 (noted)Rare226,530–276,870
Blurberry SpecialBlurberry Special1Uncommon14,964
Vecna skullVecna skull1Very rare*88,700
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,621,945,897
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 rare7,491
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