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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 guam1Common709
Grimy marrentillGrimy marrentill1Common2,307
Grimy tarrominGrimy tarromin1Common105
Grimy harralanderGrimy harralander1Common741
Grimy ranarrGrimy ranarr1Uncommon1,860
Grimy iritGrimy irit1Uncommon5,008
Grimy avantoeGrimy avantoe1Uncommon1,043
Grimy kwuarmGrimy kwuarm1Uncommon11,782
Grimy cadantineGrimy cadantine1Rare4,322
Grimy lantadymeGrimy lantadyme1Rare7,551
Grimy dwarf weedGrimy dwarf weed1Rare8,476
Eye of newtEye of newt1Common10
Limpwurt rootLimpwurt root1Common5,190
Snape grassSnape grass1Common134
Red spiders' eggsRed spiders' eggs1Common1,405
Unicorn horn dustUnicorn horn dust1Common1,680
Coins 5Coins3–8Common3–8
TinderboxTinderbox1Common474
Swamp weedSwamp weed1–8Common516–4,128
Candle lantern (empty)Candle lantern (empty)1Uncommon151
CandleCandle1Rare1,839
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 guam1Common709
Grimy marrentillGrimy marrentill1Common2,307
Grimy tarrominGrimy tarromin1Common105
Grimy harralanderGrimy harralander1Common741
Grimy ranarrGrimy ranarr1Uncommon1,860
Grimy iritGrimy irit1Uncommon5,008
Grimy avantoeGrimy avantoe1Uncommon1,043
Grimy kwuarmGrimy kwuarm1Uncommon11,782
Grimy cadantineGrimy cadantine1Uncommon4,322
Grimy lantadymeGrimy lantadyme1Rare7,551
Grimy dwarf weedGrimy dwarf weed1Rare8,476
Water runeWater rune1–167Common25–4,175
Earth runeEarth rune1–147Common18–2,646
Fire runeFire rune1–148Uncommon159–23,532
Nature runeNature rune1–8Uncommon405–3,240
Coins 25Coins1–38Common1–38
Swamp weedSwamp weed1–8Common516–4,128
Water battlestaffWater battlestaff1Rare7,974
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 sapphire1Common809
Uncut emeraldUncut emerald1Common2,555
Uncut rubyUncut ruby1Common1,842
Uncut diamondUncut diamond1Common4,843
Uncut diamondUncut diamond45–55 (noted)Rare217,935–266,365
Loop half of a keyLoop half of a key1Common11,053
Tooth half of a keyTooth half of a key1Common11,538
Uncut dragonstoneUncut dragonstone1Uncommon12,077
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare543,465–664,235
Dragon longswordDragon longsword1Common56,212
Dragon spearDragon spear1Rare35,861
BattlestaffBattlestaff180–220 (noted)Rare542,160–662,640
Rune javelinRune javelin5Rare905
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare64,399
Dragon helmDragon helm1Uncommon58,601
Rune arrowheads 5Rune arrowheads113–137Common14,916–18,084
Onyx bolts 5Onyx bolts135–165Very rare1,003,725–1,226,775
Chaos talismanChaos talisman1Rare1,923
Nature talismanNature talisman1Rare1,473
Water talismanWater talisman65–82 (noted)Rare164,320–207,296
Earth talismanEarth talisman65–82 (noted)Rare12,025–15,170
Fire talismanFire talisman25–35 (noted)Rare5,225–7,315
Raw lobsterRaw lobster135–165 (noted)Common47,655–58,245
Raw sharkRaw shark225–275 (noted)Uncommon321,075–392,425
Big bonesBig bones68–82 (noted)Uncommon13,804–16,646
Dragon bonesDragon bones180–220 (noted)Rare384,480–469,920
CoalCoal200–1,100 (noted)Uncommon22,400–123,200
Gold oreGold ore90–110 (noted)Common52,830–64,570
Adamantite oreAdamantite ore180–220 (noted)Uncommon40,860–49,940
Adamant barAdamant bar14–16 (noted)Common24,654–28,176
Adamant barAdamant bar135–165 (noted)Rare237,735–290,565
Runite oreRunite ore90–110 (noted)Rare127,710–156,090
Rune barRune bar(noted)Common8,955
Rune barRune bar45–55 (noted)Rare134,325–164,175
Grimy torstolGrimy torstol90–110 (noted)Uncommon485,010–592,790
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon161,010–196,790
Super restore (4)Super restore (4)45–55 (noted)Uncommon125,910–153,890
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon130,950–160,050
Lantadyme seed 5Lantadyme seed14–16Uncommon10,164–11,616
Dwarf weed seed 5Dwarf weed seed14–16Uncommon11,508–13,152
Magic seed 5Magic seed4Uncommon209,856
Palm tree seed 5Palm tree seed10Rare396,000
FlaxFlax450–550 (noted)Common43,200–52,800
Molten glassMolten glass45–55 (noted)Common27,585–33,715
Soft claySoft clay450–550 (noted)Uncommon188,550–230,450
Yew logsYew logs68–82 (noted)Uncommon11,356–13,694
Yew logsYew logs675–825 (noted)Rare112,725–137,775
Teak plankTeak plank45–55 (noted)Uncommon16,740–20,460
Mahogany plankMahogany plank270–330 (noted)Rare356,670–435,930
Blurberry SpecialBlurberry Special1Uncommon12,008
Vecna skullVecna skull1Very rare*124,871
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,432,268,388
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 rare5,575

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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