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Rock Crab

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Rock Crab
Giant Rock Crab Rock crab (hidden)
Release date 2 November 2004 (Update)
Members? Yes
Always drops Nothing
No one likes crabs…
Combat info
Combat 13
Hit points 50
Aggressive Yes
Poisonous No
Max hit 3
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 Attack-icon Poison hitsplat Venom hitsplat
+0 +0 No No
Attack speed
Monster attack speed 6
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. 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 Relleka.

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 57
Iron pickaxe Iron pickaxe 1 Common 478

Runes and TalismansEdit

Item Quantity Rarity GE market price
Cosmic talisman Cosmic talisman 1 Very rare 437
Nature talisman Nature talisman 1 Very rare 611


Item Quantity Rarity GE market price
Coins 250 Coins 4–498 Common Error
Oyster Oyster 1–2 Common 49–98
Seaweed Seaweed 1–5 Common 55–275
Oyster pearl Oyster pearl 1 Common 33
Empty oyster Empty oyster 1–3 Common Error
Spinach roll Spinach roll 1 Uncommon 82
Edible seaweed Edible seaweed 2 Rare 68
Iron ore Iron ore 1 Uncommon 170
Coal Coal 2 Uncommon 384
Copper ore Copper ore 3 Uncommon 123
Tin ore Tin ore 3 Uncommon 129
Fishing bait Fishing bait 1–10 Uncommon 4–40
Opal bolt tips 5 Opal bolt tips 5 Uncommon 20
Casket Casket 1 Rare 1,233
Clue scroll Clue scroll (easy) 1 Rare Not sold 

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 2,123
Loop half of key Loop half of key 1 Common 14,426
Tooth half of key Tooth half of key 1 Common 24,112
Uncut emerald Uncut emerald 1 Uncommon 2,029
Uncut ruby Uncut ruby 1 Uncommon 2,042
Nature talisman Nature talisman 1 Uncommon 611
Chaos talisman Chaos talisman 1 Uncommon 414
Nature rune Nature rune 67 Uncommon 19,162
Runite bar Runite bar 1 Uncommon 13,592
Rune spear Rune spear 1 Rare 12,508
Rune battleaxe Rune battleaxe 1 Rare 26,518
Rune 2h sword Rune 2h sword 1 Rare 41,720
Uncut diamond Uncut diamond 1 Rare 4,132
Rune javelin Rune javelin 5 Rare 755
Silver ore Silver ore 100 (noted) Rare 12,100
Adamant javelin Adamant javelin 20 Rare 680
Rune sq shield Rune sq shield 1 Rare 24,143
Steel arrow 5 Steel arrow 150 Rare 6,000
Rune arrow 5 Rune arrow 42 Rare 7,266
Law rune Law rune 45 Rare 12,690
Death rune Death rune 45 Rare 11,430
Dragonstone Dragonstone 1 Rare 28,310
Rune kiteshield Rune kiteshield 1 Rare 35,544
Dragon med helm Dragon med helm 1 Rare 62,634
Shield left half Shield left half 1 Very rare 84,943
Dragon spear Dragon spear 1 Very rare 88,504

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