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For the variant encountered in Daemonheim, see Cave slime (Dungeoneering).
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Cave slime icon

A Cave slime is a poisonous Slayer monster found in the Lumbridge Swamp Caves and the Dorgesh-Kaan South Dungeons. They require level 17 slayer to kill. They are notable for dropping considerable amounts of swamp tar, which can be sold for 263 coins each. They can also drop level 1 clue scrolls. Cave slimes are good creatures for making money if used correctly. The slimes are only poisonous if they can attack you. If you are going to melee them you should make sure to bring antipoisons or other means of curing or preventing the poison in order to avoid wasting supplies. A slightly stronger, but non-poisonous version of these monsters appears in all floors of Daemonheim.

Cave slime use melee when attacked by ranged. They use ranged when attacked by magic, ranged, or long-ranged melee weapons (like halberds), even when the attacker is adjacent to the creature. The cave slime's ranged attack is poisonous.

Locations

The highest concentration of cave slimes can be found on the west side of the Dorgesh-Kaan south dungeon, underneath the first grappling hook short cut of the agility course.

Strengths and weaknesses

Cave slimes have a maximum melee hit of 27 LP, and are poisonous. The poison starts at 32 LP and is inflicted in one of two ways: when they attack with melee (whether the attack inflicts damage or not), and when they are hit with a melee attack while in their melee distance (even if the attack kills the slime). In either case, the player will be poisoned nearly 100% of the time, unless the player protects themselves accordingly by taking antipoison potions or using the thermal bath spa at Oo'glog before fighting cave slimes. Super antipoison potions are recommended as each dose gives immunity to poison for 6 minutes. An alternative for higher levelled players is to bring decent food, such as monkfish (the money made off of swamp tar is more than the cost of the monkfish), to offset damage from the poison, as their melee attacks rarely do any direct damage, and the poison is generally mild. The best option for players with 60 Dungeoneering, 60 Defence, and 70 Herblore is to equip an anti-poison totem, which completely eliminates the need for antidotes, but costs 44,000 Dungeoneering tokens to buy, and hampers players' damage output as it disallows the use of off-hand or two-handed weapons. Alternatively, players may use the Poison Purge aura, which removes the need for antipoison and food for the time it lasts. With the introduction of Invention, the Venomblood perk also eliminates the need for antipoison.

Although these monsters have good drops, some lower levelled players do not prefer to train on them due to large number of antipoison potions required. However, players who can kill the slimes quickly can usually make a profit from the swamp tar drops, even after paying for the super antipoison potions or their ingredients.

Players using long-range combat (magic, ranged, or long melee weapons like halberds) do not need any poison protection, as the cave slime uses its non-poisonous ranged attack in these types of combat.

Players should not go into the Lumbridge Swamps dungeon with an open light (this includes candles, torches, etc.), as the flame will eventually cause the gases in the cave to explode. This can cause massive damage to the player (up to 500, depending on the player's constitution) and possibly death if the player's life points are low enough. Also, the light source will be extinguished, and swarming insects will then constantly hit 10s on the player until the player relights a light source, escapes the cave, or dies. An enclosed light source like a bullseye lantern or a flameless light source like a Seers' headband 1 (or higher) will not ignite the gases and is highly recommended. Players will need 49 Firemaking to light a bullseye lantern (Firemaking is not a skill that can be assisted). If a player intends to use cave slime to earn money, a bullseye lantern or Seers' headband is mandatory.

A tip for Cave Slimes would be to equip a Holy symbol use the Prayer book from The Great Brain Robbery quest, This allows you to camp at the cave slimes for a long time. However, this doesn't provide immunity, and you will likely be poisoned again right away if the slime is still alive or if you attack another slime (even if you kill the slime in one hit).

Drops

100% Drops

Item Quantity Rarity GE price
Swamp tarSwamp tar1–6Always263–1,578

Main drop

Item Quantity Rarity GE price
Bronze hatchetBronze hatchet1Common1,295
Iron swordIron sword1Common1,505
Bronze full helmBronze full helm1Common586
Iron kiteshieldIron kiteshield1Common3,244
Iron bootsIron boots1Rare983
Earth runeEarth rune5Uncommon90
Water runeWater rune15Common300
Body runeBody rune7Rare203
Coins 250Coins1; 2; 4; 10; 22; 44; 347Common1–347
Unlit torchUnlit torch1Common27
Oil lantern frameOil lantern frame1Uncommon10
Oil lantern (empty)Oil lantern (empty)1Uncommon12
Gold barGold bar1Rare952
Rare drop tableRare drop table1RareNot sold

Tertiary drops

Item Quantity Rarity GE price
Sealed clue scroll (easy)Sealed clue scroll (easy)1RareNot sold

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 sapphire1Common457
Uncut emeraldUncut emerald1Common777
Uncut rubyUncut ruby1Common1,267
Uncut diamondUncut diamond1Common2,644
Uncut diamondUncut diamond45–55 (noted)Rare118,980–145,420
Loop half of a keyLoop half of a key1Common10,547
Tooth half of a keyTooth half of a key1Common13,851
Uncut dragonstoneUncut dragonstone1Uncommon12,506
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare562,770–687,830
Dragon longswordDragon longsword1Common58,220
Dragon spearDragon spear1Rare35,537
BattlestaffBattlestaff180–220 (noted)Rare642,780–785,620
Rune javelinRune javelin5Rare900
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare63,988
Dragon helmDragon helm1Uncommon58,991
Rune arrowheads 5Rune arrowheads113–137Common14,690–17,810
Onyx bolts 5Onyx bolts135–165Very rare1,067,985–1,305,315
Chaos talismanChaos talisman1Rare1,138
Nature talismanNature talisman1Rare1,170
Water talismanWater talisman65–82 (noted)Rare237,640–299,792
Earth talismanEarth talisman65–82 (noted)Rare12,415–15,662
Fire talismanFire talisman25–35 (noted)Rare10,500–14,700
Raw lobsterRaw lobster135–165 (noted)Common47,115–57,585
Raw sharkRaw shark225–275 (noted)Uncommon194,850–238,150
Big bonesBig bones68–82 (noted)Uncommon11,220–13,530
Dragon bonesDragon bones180–220 (noted)Rare312,120–381,480
CoalCoal200–1,100 (noted)Uncommon20,600–113,300
Gold oreGold ore90–110 (noted)Common34,020–41,580
Adamantite oreAdamantite ore180–220 (noted)Uncommon42,480–51,920
Adamant barAdamant bar14–16 (noted)Common20,272–23,168
Adamant barAdamant bar135–165 (noted)Rare195,480–238,920
Runite oreRunite ore90–110 (noted)Rare92,700–113,300
Rune barRune bar(noted)Common6,930
Rune barRune bar45–55 (noted)Rare103,950–127,050
Grimy torstolGrimy torstol90–110 (noted)Uncommon631,980–772,420
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon190,620–232,980
Super restore (4)Super restore (4)45–55 (noted)Uncommon194,310–237,490
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon154,080–188,320
Lantadyme seed 5Lantadyme seed14–16Uncommon7,476–8,544
Dwarf weed seed 5Dwarf weed seed14–16Uncommon5,754–6,576
Magic seed 5Magic seed4Uncommon132,112
Palm tree seed 5Palm tree seed10Rare363,920
FlaxFlax450–550 (noted)Common40,950–50,050
Molten glassMolten glass45–55 (noted)Common11,700–14,300
Soft claySoft clay450–550 (noted)Uncommon259,650–317,350
Yew logsYew logs68–82 (noted)Uncommon11,560–13,940
Yew logsYew logs675–825 (noted)Rare114,750–140,250
Teak plankTeak plank45–55 (noted)Uncommon13,455–16,445
Mahogany plankMahogany plank270–330 (noted)Rare219,780–268,620
Blurberry SpecialBlurberry Special1Uncommon9,513
Vecna skullVecna skull1Very rare*98,968
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 rare9,841

Trivia

  • Previously, equipping an anti-poison totem would not prevent Cave slimes and certain other poisonous monsters from causing poison. On 15 June 2010, Jagex implemented a fix that addressed the issue. However, during the fix, cave slimes were overlooked, and could still cause poison even if the player was holding the anti-poison totem. As of 21 September 2010, this glitch has been fixed (the exact date of the fix is unknown, and most likely occurred in a hidden update).
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