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Rock Crab

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Rock Crab
Rock crab (hidden)
Release date 2 November 2004 (Update)
Members? Yes
Combat level 13
Always drops Nothing
No one likes crabs...
Disguised as rocks:
A rocky outcrop.
Combat info
Hitpoints 50
Aggressive no
Poisonous No
Max hit 1
Weakness Crush
Attack Styles
Slayer-icon Slayer info
Slayer level 1
Slayer XP 50
Category Unknown (edit)
Assigned by
Unknown (edit)
Combat-icon Combat stats
Attack-icon Strength-icon Defence-icon Ranged-icon Magic-icon
1 1 1 1 1
Attack-icon Aggressive stats
White dagger White scimitar White warhammer Magic-icon Ranged-icon
+0 +0 +0 +0 +0
Defence-icon Defensive stats
White dagger White scimitar White warhammer Magic-icon Ranged-icon
+0 +0 +0 +0 +0
Other bonuses Immunities
Strength-icon RangedStrength-icon Attack-icon Poison hitsplat Venom hitsplat
+0  ? +0 No No
Attack speed
Monster attack speed 4
Multiple rock crabs

​Rock Crabs are aggressive monsters that look like harmless rocks while disguised, but attack when walked by. Unlike most other enemies and NPCs, rock crabs are not marked with yellow dots on the player's minimap; this is probably due to the crabs' appearance, which camouflages them as rocks.

Players can tell if a rock is a rock crab by looking at the rock's shape; rock crabs are tall oval shaped while normal rocks in their area are mostly in large clusters of shattered pieces.

Rock crabs become unaggressive if the player has not left the surrounding area in a certain amount of time (roughly between ten and twenty-five minutes). To make the crabs aggressive again, exit the surrounding area (halfway to the entrance to the village in Rellekka, or by entering and exiting the entrance to Keldagrim) and enter again. You can also find one Rock Crab that will be aggressive, kill it then you can continue killing other crabs. As they are "dormant" until "awoken" by a passing player, rock crabs cannot be attacked until they are made aggressive once more.

They hit fairly low, but low level players should bring food. Rock crabs are excellent for training at all combat levels, due to their low Defence and high Hitpoints, which makes them easy to kill.

Rellekka Rock Crabs Edit


The spot to avoid cannon fire in Rellekka.

CAUTION: Dwarf multicannons are commonly used here, which makes training for other players difficult and unenjoyable; however, there is a way to avoid the cannon's fire. If a player moves to the west-most part of the multi-combat zone, most cannon fire can be avoided; there are three rock crab spawn near this location, which makes it a decent spot. Although the cannon's fire can be avoided, it is best to switch to another world.

Locations Edit



Item Quantity Rarity GE market price
Bronze pickaxe Bronze pickaxe 1 Common 94
Iron pickaxe Iron pickaxe 1 Common 239
Bronze axe Bronze axe 1 Uncommon 21
Iron javelin Iron javelin Unknown Uncommon 6

Runes and TalismanEdit

Item Quantity Rarity GE market price
Fire rune Fire rune 7 Common 35
Nature rune Nature rune 4 Uncommon 1,084
Chaos rune Chaos rune 1 Rare 102


Item Quantity Rarity GE market price
Coins 250 Coins 4–413 Common Not sold
Oyster Oyster 1–2 Common 47–94
Seaweed Seaweed 1–5 Common 59–295
Edible seaweed Edible seaweed 2 Common 54
Oyster pearl Oyster pearl 1 Common 73
Empty oyster Empty oyster 1 Common Not sold
Spinach roll Spinach roll 1 Uncommon Not sold
Knife Knife 1 Uncommon 64
Opal bolt tips 5 Opal bolt tips 5 Uncommon 30
Iron ore Iron ore 1 Uncommon 122
Coal Coal 2 Uncommon 368
Copper ore Copper ore 3 Uncommon 42
Tin ore Tin ore 3 Uncommon 102
Fishing bait Fishing bait 1–10 Uncommon 4–40
Jade bolt tips 5 Jade bolt tips 1 Rare 5
Limpwurt root Limpwurt root 1 Rare 613
Grimy ranarr weed Grimy ranarr weed 1 Rare 6,927
Grimy avantoe Grimy avantoe 1 Rare 1,994
Herb seed 5 Tarromin seed 1 Rare 12
Herb seed 5 Ranarr seed 1 Rare 20,158
Clue scroll (easy) Clue scroll (easy) 1 Rare Not sold
Casket Casket 1 Rare 1,259

Rare drop table

In addition to the drops above, this monster also has access to the rare drop table.

Show/hide rare drop table
Item Quantity Rarity GE market price
Coins 1000 Coins 3,000 Common Not sold
Uncut sapphire Uncut sapphire 1 Common 1,678
Loop half of key Loop half of key 1 Common 7,059
Tooth half of key Tooth half of key 1 Common 23,163
Uncut emerald Uncut emerald 1 Uncommon 1,505
Uncut ruby Uncut ruby 1 Uncommon 2,209
Nature talisman Nature talisman 1 Uncommon 509
Chaos talisman Chaos talisman 1 Uncommon 249
Nature rune Nature rune 67 Uncommon 18,157
Runite bar Runite bar 1 Uncommon 13,714
Rune spear Rune spear 1 Rare 12,861
Rune battleaxe Rune battleaxe 1 Rare 26,757
Rune 2h sword Rune 2h sword 1 Rare 40,430
Uncut diamond Uncut diamond 1 Rare 4,283
Rune javelin Rune javelin 5 Rare 695
Silver ore Silver ore 100 (noted) Rare 9,300
Adamant javelin Adamant javelin 20 Rare 1,160
Rune sq shield Rune sq shield 1 Rare 25,138
Steel arrow 5 Steel arrow 150 Rare 5,100
Rune arrow 5 Rune arrow 42 Rare 4,788
Law rune Law rune 45 Rare 9,540
Death rune Death rune 45 Rare 12,870
Dragonstone Dragonstone 1 Rare 20,830
Rune kiteshield Rune kiteshield 1 Rare 36,224
Dragon med helm Dragon med helm 1 Rare 63,202
Shield left half Shield left half 1 Very rare 72,260
Dragon spear Dragon spear 1 Very rare 41,087

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