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'Rum'-pumped crab

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'Rum'-pumped crab icon
Killing 'rum'-pumped crabs

By having the surgeons trapped in the other room, you can easily deal with the crabs.

'Rum'-pumped crabs are mutated crustaceans found in the 'Rum'geon on Braindeath Island. They have been injected by Captain Donnie's general malpractitioners in order to create an army. They are the only monsters that drop the brackish blade.

In order to access the dungeon, the quest A Clockwork Syringe needs to be partially completed and the player must have a Fishbowl helmet and Diving apparatus equipped, otherwise they will not be allowed to enter.

'Rum'-pumped crabs use only melee with a maximum hit of around 240. They will constantly be considered aggressive towards anyone within the 'Rum'geon. They will take increased damage from the brackish blade that they drop, as well as the Brine sabre.

Players may find it more profitable to bring along High Alchemy runes, as the Rune claws drops can more often than not be alched for more than they could be sold for on the Grand Exchange. Also, it is possible to gather upwards of 100K gold coins per trip just by picking up the regular coin drops as well as alchemising. Another way to increase your profit for each trip is to bring a gem bag, a reward from the dungeoneering skill and bought by tokens, to keep all gem drops without using inventory space.

Protect from Melee is advised, as multiple crabs will attack the player. On occasion, nearby level 84 general malpractitioners may throw a syringe at a crab and temporarily increase its attack speed, up to a maximum of 8. The malpractitioners will also attack the player with poisonous ranged attacks, so Antipoison potions or an Anti-poison totem will come in handy. Additionally, these monsters are weak to stab attacks.

'Rum'-pumped crabs also have a high blue charm drop rate, for those who would like to effectively collect them whilst gaining considerable combat experience (about 150K+ per trip with optimal gear, stats, and inventory. This is excluding Constitution experience).

Another strategy is to bring a good melee defensive set such as Barrows equipment and lure the general malpractitioners out of one of the rooms and close the door after them, this way you will avoid being ranged by the malpractitioners and can either choose to pray melee to avoid receiving damage from the 'rum'-pumped crabs or you can choose to use the Ancient Curse, Soul Split, whenever you get low on life points. It is noteworthy that the crabs drops several cooked lobsters which can also be used for healing up the life points lost. With this method a trip would last until you run out of prayer potions.




Charm drop numbers
No charmGold charmGreen charmCrimson charmBlue charm
Represents a 90% confidence range.
Based on a sample of 2,401 kills.
1 charm is dropped at a time.
Add data to the log
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Weapons and armourEdit

Item Quantity Rarity GE market price
Rune clawRune claw1Uncommon4,673
Brackish bladeBrackish blade1Rare182,889


Item Quantity Rarity GE market price
Fishing potion (4)Fishing potion (4)2 (noted)Common234
Super attack (1)Super attack (1)1Common372
Super strength (1)Super strength (1)1Common1,698
Super defence (1)Super defence (1)1Uncommon1,650
Super ranging potion (2)Super ranging potion (2)1Rare6,221


Item Quantity Rarity GE market price
Grimy guamGrimy guam1Common244
Grimy marrentillGrimy marrentill1Common216
Grimy tarrominGrimy tarromin1Common54
Grimy harralanderGrimy harralander1Common150
Grimy ranarrGrimy ranarr1Common2,114
Grimy iritGrimy irit1Common1,659
Grimy kwuarmGrimy kwuarm1Uncommon5,053
Grimy avantoeGrimy avantoe1Uncommon3,594
Grimy cadantineGrimy cadantine1Uncommon4,962
Grimy lantadymeGrimy lantadyme1Uncommon4,801
Grimy dwarf weedGrimy dwarf weed1Uncommon4,789


Item Quantity Rarity GE market price
Potato seed 5Potato seed1–3Common10–30
Onion seed 5Onion seed1–3Common6–18
Cabbage seed 5Cabbage seed1–3Common10–30
Tomato seed 5Tomato seed1–3Common2–6
Strawberry seed 5Strawberry seed1–3Common196–588
Watermelon seed 5Watermelon seed1–3Uncommon1,424–4,272
Evil turnip seed 5Evil turnip seed1–4Uncommon19–76
Sweetcorn seed 5Sweetcorn seed1–3Uncommon11–33
Morchella mushroom spore 5Morchella mushroom spore2Uncommon222
Fellstalk seed 5Fellstalk seed1Rare332


Item Quantity Rarity GE market price
Coins 1000Coins342–1,671Common342–1,671
Raw lobsterRaw lobster1–3Common170–510
Gold oreGold ore2 (noted)Common258
Fire talismanFire talisman1Rare1,653
Spirit sapphireSpirit sapphire1RareNot sold
Spirit emeraldSpirit emerald1RareNot sold
Spirit rubySpirit ruby1RareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold

Rare drop table dropsEdit

This monster has access to the rare drop table.
The ring of wealth is not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE market price
Coins 1000Coins250–500; 3,000Common250–3,000
Uncut sapphireUncut sapphire1Common806
Uncut emeraldUncut emerald1Common1,351
Uncut rubyUncut ruby1Common2,235
Uncut diamondUncut diamond1Common3,841
Uncut diamondUncut diamond45–55 (noted)Rare172,845–211,255
Loop half of a keyLoop half of a key1Uncommon17,627
Tooth half of a keyTooth half of a key1Uncommon32,654
Uncut dragonstoneUncut dragonstone1Uncommon11,934
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare537,030–656,370
Dragon longswordDragon longsword1Common57,663
Dragon spearDragon spear1Uncommon36,402
BattlestaffBattlestaff180–220 (noted)Uncommon1,314,360–1,606,440
Rune javelinRune javelin5Rare905
Rune platebodyRune platebody1Uncommon37,980
Rune platebodyRune platebody15–25 (noted)Rare569,700–949,500
Shield left halfShield left half1Uncommon64,942
Dragon helmDragon helm1Uncommon59,291
Rune arrowheads 5Rune arrowheads113–137Common22,035–26,715
Onyx bolts 5Onyx bolts135–165Rare1,111,860–1,358,940
Vecna skullVecna skull1Uncommon52,293
Chaos talismanChaos talisman1Uncommon814
Nature talismanNature talisman1Uncommon757
Water talismanWater talisman65–82 (noted)Rare523,835–660,838
Earth talismanEarth talisman65–82 (noted)Rare129,545–163,426
Fire talismanFire talisman25–35 (noted)Rare41,325–57,855
Raw lobsterRaw lobster135–165 (noted)Uncommon22,950–28,050
Raw sharkRaw shark225–275 (noted)Uncommon225,450–275,550
Big bonesBig bones79–90 (noted)Uncommon29,151–33,210
Dragon bonesDragon bones180–220 (noted)Uncommon501,660–613,140
CoalCoal200–1,100 (noted)Uncommon85,000–467,500
Gold oreGold ore90–110 (noted)Common11,610–14,190
Adamantite oreAdamantite ore180–220 (noted)Uncommon252,900–309,100
Adamant barAdamant bar15 (noted)Common40,095
Adamant barAdamant bar135–165 (noted)Rare360,855–441,045
Runite oreRunite ore90–110 (noted)Rare910,170–1,112,430
Rune barRune bar3 (noted)Common42,942
Rune barRune bar45–55 (noted)Rare644,130–787,270
Grimy torstolGrimy torstol90–110 (noted)Uncommon398,160–486,640
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon294,300–359,700
Super restore (4)Super restore (4)45–55 (noted)Uncommon185,085–226,215
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon128,925–157,575
Herb seed 5Lantadyme seed14–16Uncommon45,766–52,304
Herb seed 5Dwarf weed seed14–16Uncommon63,154–72,176
Magic seed 5Magic seed4Uncommon401,564
Palm tree seed 5Palm tree seed10Rare1,429,570
FlaxFlax450–550 (noted)Common9,000–11,000
Molten glassMolten glass45–55 (noted)Common5,625–6,875
Soft claySoft clay450–550 (noted)Uncommon154,350–188,650
Yew logsYew logs68–82Uncommon14,212–17,138
Yew logsYew logs675–825 (noted)Rare141,075–172,425
Teak plankTeak plank45–55 (noted)Uncommon27,765–33,935
Mahogany plankMahogany plank270–330 (noted)Rare556,740–680,460
Brawling gloves (Melee)Brawling gloves (Melee)1RareNot sold
Brawling gloves (Magic)Brawling gloves (Magic)1RareNot sold
Brawling gloves (Ranged)Brawling gloves (Ranged)1RareNot sold
Brawling gloves (Agility)Brawling gloves (Agility)1RareNot sold
Brawling gloves (Cooking)Brawling gloves (Cooking)1RareNot sold
Brawling gloves (FM)Brawling gloves (FM)1RareNot sold
Brawling gloves (Fishing)Brawling gloves (Fishing)1RareNot sold
Brawling gloves (Hunter)Brawling gloves (Hunter)1RareNot sold
Brawling gloves (Mining)Brawling gloves (Mining)1RareNot sold
Brawling gloves (Prayer)Brawling gloves (Prayer)1RareNot sold
Brawling gloves (Smithing)Brawling gloves (Smithing)1RareNot sold
Brawling gloves (Thieving)Brawling gloves (Thieving)1RareNot sold
Brawling gloves (WC)Brawling gloves (WC)1RareNot 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 dropsEdit

Universal drops are dropped by nearly every monster outside of Daemonheim.
These drops are dropped alongside main drops.
Item Quantity Rarity GE market price
Key tokenKey token1RareNot sold


  • Before the Evolution of Combat when the special attack of the Brine Sabre and Brackish Blade was used on a 'Rum'-pumped crab the message "The Brine Sabre/Brackish Blade seems super-effective." appeared. This may have been a reference to Pokémon where a player would see "It's super effective!" when a Pokémon was hit by an attack that it was weak to.
  • Killing a 'rum'-pumped crab is required to complete the Alcrabholic task in the Daemonheim task set.
  • Despite requiring a slayer level,'Rum'-pumped crabs are not a slayer assignment.
  • Despite being a crab, they used to drop Bones. This was rectified on 1 July 2014.

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