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This article is about the monster in the Lumbridge Swamp caves. For the monster in the Fremennik Slayer Dungeon, see Cave crawler.
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Cave bug icon

Cave bugs can be assigned as Slayer assignments, and require level 7 Slayer to kill. Bring food if you are below level 20, as they regenerate quickly.

Locations

Cave bugs

Cave bugs in the Chaos tunnels

Drops (level 8)

Main drop

Item Quantity Rarity GE price
Grimy guamGrimy guam1Common353
Grimy marrentillGrimy marrentill1Common3,088
Grimy tarrominGrimy tarromin1Common88
Grimy harralanderGrimy harralander1Common290
Grimy ranarrGrimy ranarr1Uncommon1,763
Grimy iritGrimy irit1Uncommon3,835
Grimy avantoeGrimy avantoe1Uncommon1,086
Grimy kwuarmGrimy kwuarm1Uncommon10,762
Grimy cadantineGrimy cadantine1Rare2,229
Grimy lantadymeGrimy lantadyme1Rare7,669
Grimy dwarf weedGrimy dwarf weed1Rare7,496
Eye of newtEye of newt1Common10
Limpwurt rootLimpwurt root1Common2,323
Snape grassSnape grass1Common111
Red spiders' eggsRed spiders' eggs1Common1,558
Unicorn horn dustUnicorn horn dust1Common546
Coins 5Coins3–8Common3–8
TinderboxTinderbox1Common195
Swamp weedSwamp weed1–8Common536–4,288
Candle lantern (empty)Candle lantern (empty)1Uncommon157
CandleCandle1Rare370
Bronze gauntletsBronze gauntlets1Rare650
Rare drop tableRare drop table1RareNot sold

Drops (level 12)

Charms

No charmGold charmGreen charmCrimson charmBlue charm
51–55%6–7%35–38%3–4%0.6–1.2%
Represents a 90% confidence range based on a sample of 2,178 kills.
1 charm is dropped at a time.
Add data to the log (requires JavaScript).

Only the level 12 Cave Bugs drop charms

Main drop

Item Quantity Rarity GE price
Grimy guamGrimy guam1Common353
Grimy marrentillGrimy marrentill1Common3,088
Grimy tarrominGrimy tarromin1Common88
Grimy harralanderGrimy harralander1Common290
Grimy ranarrGrimy ranarr1Uncommon1,763
Grimy iritGrimy irit1Uncommon3,835
Grimy avantoeGrimy avantoe1Uncommon1,086
Grimy kwuarmGrimy kwuarm1Uncommon10,762
Grimy cadantineGrimy cadantine1Uncommon2,229
Grimy lantadymeGrimy lantadyme1Rare7,669
Grimy dwarf weedGrimy dwarf weed1Rare7,496
Water runeWater rune1–167Common20–3,340
Earth runeEarth rune1–147Common18–2,646
Fire runeFire rune1–148Uncommon91–13,468
Nature runeNature rune1–8Uncommon440–3,520
Coins 25Coins1–38Common1–38
Swamp weedSwamp weed1–8Common536–4,288
Water battlestaffWater battlestaff1Rare8,389
Rare drop tableRare drop table1RareNot sold

Tertiary drops

Item Quantity Rarity GE price
Sealed clue scroll (easy)Sealed clue scroll (easy)1RareNot sold
Bronze gauntletsBronze gauntlets1Rare[1]650
Spirit sapphireSpirit sapphire1RareNot sold
Spirit emeraldSpirit emerald1RareNot sold
Spirit rubySpirit ruby1RareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold
  1. ^ Drops along with the Water battlestaff drop.

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

Trivia

  • Although this monster appears on Free-to-play worlds in the Taverley Slayer Dungeon, it cannot be killed because it requires a Slayer level of 7, while free players can only reach level 5.
  • The large level 18 cave bugs were level 96 before the Evolution of Combat.
  • When a level 18 cave bug is killed, it appears to fall apart and explode.
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