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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 helm1Common2,606
Mithril sq shieldMithril sq shield1Uncommon2,669
BattlestaffBattlestaff(m)1Uncommon4,118
Mithril platebodyMithril platebody1Rare2,540
Rune scimitarRune scimitar1Very rare14,957
Grimy iritGrimy irit(m)1Common2,968
Grimy guamGrimy guam1Common[1]336
Grimy marrentillGrimy marrentill1Common[1]2,948
Grimy tarrominGrimy tarromin1Common[1]53
Grimy harralanderGrimy harralander(m)1Common101
Grimy ranarrGrimy ranarr(m)1Rare1,258
Grimy cadantineGrimy cadantine(m)1Rare1,870
Grimy avantoeGrimy avantoe(m)1Rare702
Grimy kwuarmGrimy kwuarm(m)1Rare5,633
Grimy lantadymeGrimy lantadyme(m)1Rare4,428
Grimy dwarf weedGrimy dwarf weed(m)1Rare3,713
Red spiders' eggsRed spiders' eggs1Rare1,570
Mithril oreMithril ore2–3 (noted)Common504–756
CoalCoal1–2 (noted)Uncommon103–206
Cosmic runeCosmic rune1–2Common416–832
Nature runeNature rune1–2Uncommon414–828
Chaos runeChaos rune1–18Common113–2,034
Earth runeEarth rune1–22Common19–418
Coins 100Coins20–150Common20–150
CarapaceCarapace1Common688
Rare drop tableRare drop table1RareNot sold
Uncut emeraldUncut emerald1Unknown696

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 sapphire1Common370
Uncut emeraldUncut emerald1Common696
Uncut rubyUncut ruby1Common1,068
Uncut diamondUncut diamond1Common2,438
Uncut diamondUncut diamond45–55 (noted)Rare109,710–134,090
Loop half of a keyLoop half of a key1Common10,768
Tooth half of a keyTooth half of a key1Common13,981
Uncut dragonstoneUncut dragonstone1Uncommon12,126
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare545,670–666,930
Dragon longswordDragon longsword1Common58,241
Dragon spearDragon spear1Rare36,270
BattlestaffBattlestaff180–220 (noted)Rare741,240–905,960
Rune javelinRune javelin5Rare880
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare64,674
Dragon helmDragon helm1Uncommon59,001
Rune arrowheads 5Rune arrowheads113–137Common15,820–19,180
Onyx bolts 5Onyx bolts135–165Very rare1,067,310–1,304,490
Chaos talismanChaos talisman1Rare1,188
Nature talismanNature talisman1Rare765
Water talismanWater talisman65–82 (noted)Rare244,335–308,238
Earth talismanEarth talisman65–82 (noted)Rare14,885–18,778
Fire talismanFire talisman25–35 (noted)Rare7,900–11,060
Raw lobsterRaw lobster135–165 (noted)Common26,055–31,845
Raw sharkRaw shark225–275 (noted)Uncommon168,525–205,975
Big bonesBig bones68–82 (noted)Uncommon10,948–13,202
Dragon bonesDragon bones180–220 (noted)Rare328,680–401,720
CoalCoal200–1,100 (noted)Uncommon20,600–113,300
Gold oreGold ore90–110 (noted)Common27,810–33,990
Adamantite oreAdamantite ore180–220 (noted)Uncommon42,120–51,480
Adamant barAdamant bar14–16 (noted)Common23,870–27,280
Adamant barAdamant bar135–165 (noted)Rare230,175–281,325
Runite oreRunite ore90–110 (noted)Rare106,110–129,690
Rune barRune bar(noted)Common7,887
Rune barRune bar45–55 (noted)Rare118,305–144,595
Grimy torstolGrimy torstol90–110 (noted)Uncommon350,640–428,560
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon118,980–145,420
Super restore (4)Super restore (4)45–55 (noted)Uncommon160,965–196,735
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon120,195–146,905
Lantadyme seed 5Lantadyme seed14–16Uncommon4,746–5,424
Dwarf weed seed 5Dwarf weed seed14–16Uncommon4,032–4,608
Magic seed 5Magic seed4Uncommon128,648
Palm tree seed 5Palm tree seed10Rare245,000
FlaxFlax450–550 (noted)Common40,500–49,500
Molten glassMolten glass45–55 (noted)Common9,315–11,385
Soft claySoft clay450–550 (noted)Uncommon261,900–320,100
Yew logsYew logs68–82 (noted)Uncommon10,880–13,120
Yew logsYew logs675–825 (noted)Rare108,000–132,000
Teak plankTeak plank45–55 (noted)Uncommon13,815–16,885
Mahogany plankMahogany plank270–330 (noted)Rare209,790–256,410
Blurberry SpecialBlurberry Special1Uncommon8,380
Vecna skullVecna skull1Very rare*165,646
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,758,438,364
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 rare9,282
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