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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 dangerous and aggressive, 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.

There is a safespot from General malpractitioners in the room east of the dungeon entrance. This will help save inventory spots for prayer potions normally taken up by food and antipoisons. It is easy to kill over 100 crabs on one inventory of prayer potions. If your goal is to attain the brackish blade via drop, fill inventory with 1 antipoison (in case you get poisoned by the malpractitioners on your way to safe spot), 3 tunas, swordfish, monkfish, or shark for emergency food, and 17-21 prayer potions (4).

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 percentages
No charms Gold charm Green charm Crimson charm Blue charm






Represents 90% confidence range, based on a sample of 2,401 kills.
1 charm is dropped at a time.

Please add to the log (only if 50 or more creatures killed).

Weapons and armourEdit

  Item Quantity Rarity GE market price
Rune claw Rune claw 1 3 Uncommon 6,251
Brackish blade Brackish blade 1 4 Rare 133,384


  Item Quantity Rarity GE market price
Fishing potion (4) Fishing potion (4) 2 (noted) 2 Common 134
Super attack (1) Super attack (1) 1 2 Common 327
Super strength (1) Super strength (1) 1 2 Common 948
Super defence (1) Super defence (1) 1 3 Uncommon 119
Super ranging potion (2) Super ranging potion (2) 1 4 Rare 6,239


  Item Quantity Rarity GE market price
Grimy guam Grimy guam 1 2 Common 408
Grimy marrentill Grimy marrentill 1 2 Common 103
Grimy tarromin Grimy tarromin 1 2 Common 30
Grimy harralander Grimy harralander 1 2 Common 82
Grimy ranarr Grimy ranarr 1 2 Common 2,397
Grimy irit Grimy irit 1 2 Common 1,590
Grimy kwuarm Grimy kwuarm 1 3 Uncommon 2,726
Grimy avantoe Grimy avantoe 1 3 Uncommon 3,100
Grimy cadantine Grimy cadantine 1 3 Uncommon 1,688
Grimy lantadyme Grimy lantadyme 1 3 Uncommon 6,943
Grimy dwarf weed Grimy dwarf weed 1 3 Uncommon 7,218


  Item Quantity Rarity GE market price
Potato seed 5 Potato seed 1–3 2 Common 6–18
Onion seed 5 Onion seed 1–3 2 Common 3–9
Cabbage seed 5 Cabbage seed 1–3 2 Common 5–15
Tomato seed 5 Tomato seed 1–3 2 Common 2–6
Strawberry seed 5 Strawberry seed 1–3 2 Common 527–1,581
Watermelon seed 5 Watermelon seed 1–3 3 Uncommon 2,904–8,712
Evil turnip seed 5 Evil turnip seed 1–4 3 Uncommon 293–1,172
Sweetcorn seed 5 Sweetcorn seed 1–3 3 Uncommon 4–12
Morchella mushroom spore 5 Morchella mushroom spore 2 3 Uncommon 78


  Item Quantity Rarity GE market price
Coins 250 Coins 342–1,671 2 Common Not sold
Lobster Lobster 1 2 Common 262
Raw lobster Raw lobster 1–3 2 Common 393–1,179
Gold ore Gold ore 2 (noted) 2 Common 462
Fire talisman Fire talisman 1 4 Rare 2,497
Spirit sapphire Spirit sapphire 1 4 Rare Not sold
Spirit emerald Spirit emerald 1 4 Rare Not sold
Spirit ruby Spirit ruby 1 4 Rare Not sold
Ancient effigy Ancient effigy 1 5 Very rare Not 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 250 Coins 200–350,3,000 2 Common Not sold
Uncut sapphire Uncut sapphire 1 2 Common 1,392
Uncut emerald Uncut emerald 1 2 Common 2,578
Uncut ruby Uncut ruby 1 2 Common 3,008
Uncut diamond Uncut diamond 1 3 Uncommon 5,698
Loop half of a key Loop half of a key 1 3 Uncommon 34,223
Tooth half of a key Tooth half of a key 1 3 Uncommon 34,730
Uncut dragonstone Uncut dragonstone 1 4 Rare 14,670
Dragonstone Dragonstone 1 4 Rare 10,124
Dragon dagger Dragon dagger 1 3 Uncommon 16,553
Rune battleaxe Rune battleaxe 1 4 Rare 24,219
Rune javelin Rune javelin 5 4 Rare 915
Adamant javelin Adamant javelin 20 5 Very rare 1,240
Rune 2h sword Rune 2h sword 1 5 Very rare 37,382
Rune spear Rune spear 1 5 Very rare 11,448
Dragon spear Dragon spear 1 5 Very rare 36,871
Battlestaff Battlestaff 200 (noted) 4 Rare 1,557,200
Rune sq shield Rune sq shield 1 5 Very rare 22,042
Rune kiteshield Rune kiteshield 1 5 Very rare 31,599
Shield left half Shield left half 1 5 Very rare 64,213
Dragon helm Dragon helm 1 5 Very rare 58,908
Adamant bolts 5 Adamant bolts 200 3 Uncommon 13,000
Onyx bolts 5 Onyx bolts 150 4 Rare 1,277,700
Rune arrow 5 Rune arrow 150 4 Rare 22,650
Vecna skull Vecna skull 1 5 Very rare 96,512
Water talisman Water talisman 1 3 Uncommon 10,566
Earth talisman Earth talisman 25–35 (noted) 3 Uncommon 61,875–86,625
Fire talisman Fire talisman 25–35 (noted) 3 Uncommon 62,425–87,395
Chaos talisman Chaos talisman 1 3 Uncommon 717
Nature talisman Nature talisman 1 3 Uncommon 462
Pure essence Pure essence 1,000–1,500 (noted) 3 Uncommon 17,000–25,500
Nature rune Nature rune 60–80 4 Rare 18,600–24,800
Soul rune Soul rune 20 4 Rare 4,240
Law rune Law rune 45 4 Rare 19,620
Death rune Death rune 50 4 Rare 15,350
Blood rune Blood rune 50 4 Rare 25,100
Raw swordfish Raw swordfish 125–250 (noted) 3 Uncommon 61,875–123,750
Raw shark Raw shark 250 (noted) 3 Uncommon 278,000
Big bones Big bones 150–180 (noted) 3 Uncommon 85,350–102,420
Coal Coal 550–700 (noted) 3 Uncommon 132,550–168,700
Adamantite ore Adamantite ore 150–250 (noted) 3 Uncommon 192,150–320,250
Silver ore Silver ore 100 (noted) 4 Rare 9,000
Runite ore Runite ore 100 (noted) 4 Rare 1,121,300
Rune bar Rune bar 1 2 Common 14,108
Rune bar Rune bar 50 (noted) 5 Very rare 705,400
Clean toadflax Clean toadflax 35–45 (noted) 3 Uncommon 115,640–148,680
Clean snapdragon Clean snapdragon 30–35 (noted) 3 Uncommon 102,450–119,525
Clean torstol Clean torstol 16–34 (noted) 3 Uncommon 89,280–189,720
Herb seed 5 Snapdragon seed 1 2 Common 2,425
Herb seed 5 Torstol seed 1 3 Uncommon 19,824
Watermelon seed 5 Watermelon seed 3 3 Uncommon 8,712
Magic seed 5 Magic seed 3–7 4 Rare 499,476–1,165,444
Palm tree seed 5 Palm tree seed 10 4 Rare 1,234,100
Yew logs Yew logs 450–550 (noted) 4 Rare 161,550–197,450
Crystal triskelion fragment 1 Crystal triskelion fragment 1 1 5 Very rare Not sold
Crystal triskelion fragment 2 Crystal triskelion fragment 2 1 5 Very rare Not sold
Crystal triskelion fragment 3 Crystal triskelion fragment 3 1 5 Very rare Not sold
Brawling gloves (Melee) Brawling gloves (Melee) 1 5 Very rare Not sold
Brawling gloves (Magic) Brawling gloves (Magic) 1 5 Very rare Not sold
Brawling gloves (Ranged) Brawling gloves (Ranged) 1 5 Very rare Not sold
Brawling gloves (Agility) Brawling gloves (Agility) 1 5 Very rare Not sold
Brawling gloves (Cooking) Brawling gloves (Cooking) 1 5 Very rare Not sold
Brawling gloves (FM) Brawling gloves (FM) 1 5 Very rare Not sold
Brawling gloves (Fishing) Brawling gloves (Fishing) 1 5 Very rare Not sold
Brawling gloves (Hunter) Brawling gloves (Hunter) 1 5 Very rare Not sold
Brawling gloves (Mining) Brawling gloves (Mining) 1 5 Very rare Not sold
Brawling gloves (Prayer) Brawling gloves (Prayer) 1 5 Very rare Not sold
Brawling gloves (Smithing) Brawling gloves (Smithing) 1 5 Very rare Not sold
Brawling gloves (Thieving) Brawling gloves (Thieving) 1 5 Very rare Not sold
Brawling gloves (WC) Brawling gloves (WC) 1 5 Very rare Not 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 token Key token 1 4 Rare Not 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 July 1st 2014.

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