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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 guam1Common481
Grimy marrentillGrimy marrentill1Common2,386
Grimy tarrominGrimy tarromin1Common80
Grimy harralanderGrimy harralander1Common264
Grimy ranarrGrimy ranarr1Uncommon1,781
Grimy iritGrimy irit1Uncommon4,365
Grimy avantoeGrimy avantoe1Uncommon1,144
Grimy kwuarmGrimy kwuarm1Uncommon12,233
Grimy cadantineGrimy cadantine1Rare2,297
Grimy lantadymeGrimy lantadyme1Rare9,550
Grimy dwarf weedGrimy dwarf weed1Rare11,143
Eye of newtEye of newt1Common10
Limpwurt rootLimpwurt root1Common3,152
Snape grassSnape grass1Common117
Red spiders' eggsRed spiders' eggs1Common1,556
Unicorn horn dustUnicorn horn dust1Common843
Coins 5Coins3–8Common3–8
TinderboxTinderbox1Common166
Swamp weedSwamp weed1–8Common536–4,288
Candle lantern (empty)Candle lantern (empty)1Uncommon142
CandleCandle1Rare324
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 guam1Common481
Grimy marrentillGrimy marrentill1Common2,386
Grimy tarrominGrimy tarromin1Common80
Grimy harralanderGrimy harralander1Common264
Grimy ranarrGrimy ranarr1Uncommon1,781
Grimy iritGrimy irit1Uncommon4,365
Grimy avantoeGrimy avantoe1Uncommon1,144
Grimy kwuarmGrimy kwuarm1Uncommon12,233
Grimy cadantineGrimy cadantine1Uncommon2,297
Grimy lantadymeGrimy lantadyme1Rare9,550
Grimy dwarf weedGrimy dwarf weed1Rare11,143
Water runeWater rune1–167Common19–3,173
Earth runeEarth rune1–147Common17–2,499
Fire runeFire rune1–148Uncommon77–11,396
Nature runeNature rune1–8Uncommon477–3,816
Coins 25Coins1–38Common1–38
Swamp weedSwamp weed1–8Common536–4,288
Water battlestaffWater battlestaff1Rare8,311
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 sapphire1Common316
Uncut emeraldUncut emerald1Common675
Uncut rubyUncut ruby1Common1,093
Uncut diamondUncut diamond1Common2,418
Uncut diamondUncut diamond45–55 (noted)Rare108,810–132,990
Loop half of a keyLoop half of a key1Common11,236
Tooth half of a keyTooth half of a key1Common14,413
Uncut dragonstoneUncut dragonstone1Uncommon12,012
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare540,540–660,660
Dragon longswordDragon longsword1Common57,287
Dragon spearDragon spear1Rare36,128
BattlestaffBattlestaff180–220 (noted)Rare633,960–774,840
Rune javelinRune javelin5Rare885
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare63,600
Dragon helmDragon helm1Uncommon58,906
Rune arrowheads 5Rune arrowheads113–137Common14,464–17,536
Onyx bolts 5Onyx bolts135–165Very rare1,053,540–1,287,660
Chaos talismanChaos talisman1Rare1,491
Nature talismanNature talisman1Rare1,171
Water talismanWater talisman65–82 (noted)Rare194,675–245,590
Earth talismanEarth talisman65–82 (noted)Rare10,985–13,858
Fire talismanFire talisman25–35 (noted)Rare8,050–11,270
Raw lobsterRaw lobster135–165 (noted)Common82,755–101,145
Raw sharkRaw shark225–275 (noted)Uncommon344,700–421,300
Big bonesBig bones68–82 (noted)Uncommon11,356–13,694
Dragon bonesDragon bones180–220 (noted)Rare503,280–615,120
CoalCoal200–1,100 (noted)Uncommon22,200–122,100
Gold oreGold ore90–110 (noted)Common31,770–38,830
Adamantite oreAdamantite ore180–220 (noted)Uncommon42,480–51,920
Adamant barAdamant bar14–16 (noted)Common18,102–20,688
Adamant barAdamant bar135–165 (noted)Rare174,555–213,345
Runite oreRunite ore90–110 (noted)Rare89,010–108,790
Rune barRune bar(noted)Common5,898
Rune barRune bar45–55 (noted)Rare88,470–108,130
Grimy torstolGrimy torstol90–110 (noted)Uncommon795,060–971,740
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon153,270–187,330
Super restore (4)Super restore (4)45–55 (noted)Uncommon167,085–204,215
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon165,600–202,400
Lantadyme seed 5Lantadyme seed14–16Uncommon19,894–22,736
Dwarf weed seed 5Dwarf weed seed14–16Uncommon21,924–25,056
Magic seed 5Magic seed4Uncommon355,884
Palm tree seed 5Palm tree seed10Rare666,410
FlaxFlax450–550 (noted)Common45,900–56,100
Molten glassMolten glass45–55 (noted)Common11,700–14,300
Soft claySoft clay450–550 (noted)Uncommon283,050–345,950
Yew logsYew logs68–82 (noted)Uncommon13,260–15,990
Yew logsYew logs675–825 (noted)Rare131,625–160,875
Teak plankTeak plank45–55 (noted)Uncommon13,095–16,005
Mahogany plankMahogany plank270–330 (noted)Rare216,000–264,000
Blurberry SpecialBlurberry Special1Uncommon16,252
Vecna skullVecna skull1Very rare*74,191
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,626,392,973
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 rare9,046

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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