Fandom

RuneScape Wiki

Giant rock crab

36,749pages on
this wiki
Add New Page
Discuss15 Share
[FAQ] • [doc]

Giant rock crabs are massive versions of the weaker Rock crab. They lie in wait for prey, disguised as large boulders. When approached, they attack, unless they have become tolerant, in which case they remain as "boulders" - attempting to target them gives the message "Invalid target."

Giant Rock Crabs are good droppers of charms, as they drop 3 of them at a time. They also drop various black equipment (platebody and claws), worth a decent sum of coins. They are the only droppers of rock-shell parts, which are needed to create Rock-shell armour.

LocationsEdit

Chaos Tunnels entrances locations

StrategyEdit

Giant Rock Crabs have a fairly high resistance to Melee and Ranged attacks, and thus are only effectively killed using Magic.

In the Chaos Tunnels, they will eventually lose aggression. When they do, just leave the cave via the rope exit. Then just go straight back down the crevice.

RetreatEdit

The Giant Rock Crab is one of few monsters that will retreat from battle when they become critically wounded.

DropsEdit

100%Edit

Item Quantity Rarity GE price
BonesBones1Always189

Runes/TalismansEdit

Item Quantity Rarity GE price
Water runeWater rune1–39Common19–741
Earth runeEarth rune1–40Common17–680
Air talismanAir talisman1Uncommon344
Mind talismanMind talisman1Uncommon316
Fire talismanFire talisman1Uncommon1,709
Cosmic talismanCosmic talisman1Rare291
Body talismanBody talisman1Rare295
Water talismanWater talisman1Uncommon6,406
Earth talismanEarth talisman1Uncommon2,109
Nature talismanNature talisman1Rare1,098
Chaos talismanChaos talisman1Uncommon1,722

Weaponry/ArmourEdit

Item Quantity Rarity GE price
Steel platebodySteel platebody1Common2,084
Black clawBlack claw1Common[1]1,677
Off-hand black clawOff-hand black claw1Common[1]947
Black platebodyBlack platebody1Common2,068
Mithril hatchetMithril hatchet1Common1,131
Rock-shell glovesRock-shell gloves1Uncommon7,496
Rock-shell bootsRock-shell boots1Uncommon4,999
Black warhammerBlack warhammer1Uncommon1,315
Off-hand black warhammerOff-hand black warhammer1Uncommon472
Adamant longswordAdamant longsword1Uncommon4,205
Adamant warhammerAdamant warhammer1Rare2,610
  1. ^ a b Main hand and off hand claws are dropped together.

CharmsEdit

No charmGold charmGreen charmCrimson charmBlue charm
2–3%79–80%9–10%6–7%2%
Represents a 90% confidence range based on a sample of 6,143 kills.
3 charms are dropped at a time.
Add data to the log (requires JavaScript).

SeedsEdit

Item Quantity Rarity GE price
Poison ivy seed 5Poison ivy seed1Uncommon42
Belladonna seed 5Belladonna seed1Uncommon373
Guam seed 5Guam seed1Uncommon9
Marrentill seed 5Marrentill seed1Uncommon10
Tarromin seed 5Tarromin seed1Uncommon16
Harralander seed 5Harralander seed1Uncommon18
Toadflax seed 5Toadflax seed1Uncommon1,738
Ranarr seed 5Ranarr seed1Rare1,262
Irit seed 5Irit seed1Rare430
Avantoe seed 5Avantoe seed1Rare290
Snapdragon seed 5Snapdragon seed1Rare650
Cadantine seed 5Cadantine seed1Rare6,317
Lantadyme seed 5Lantadyme seed1Rare1,155
Kwuarm seed 5Kwuarm seed1Rare5,908
Dwarf weed seed 5Dwarf weed seed1Very rare931
Torstol seed 5Torstol seed1Very rare2,812

HerbsEdit

Item Quantity Rarity GE price
Grimy guamGrimy guam1Uncommon174
Grimy marrentillGrimy marrentill1Uncommon191
Grimy tarrominGrimy tarromin1Uncommon35
Grimy harralanderGrimy harralander1Uncommon78
Grimy ranarrGrimy ranarr1Rare3,482
Grimy iritGrimy irit1Rare3,498
Grimy avantoeGrimy avantoe1Rare2,617
Grimy kwuarmGrimy kwuarm1Rare5,698
Grimy cadantineGrimy cadantine1Rare6,244
Grimy lantadymeGrimy lantadyme1Rare4,591
Grimy dwarf weedGrimy dwarf weed1Rare2,897

OtherEdit

Item Quantity Rarity GE price
Coins 100Coins23–137Common23–137
Raw lobsterRaw lobster1Common97
Raw bassRaw bass1Common303
TinderboxTinderbox1Common251
CasketCasket1Rare2,307
Rock-shell splinterRock-shell splinter1Uncommon10,118
Rock-shell chunkRock-shell chunk1Rare6,638
Rock-shell shardRock-shell shard1Rare6,945
Clue scroll (medium)Clue scroll (medium)1Very rareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold

Rare drop table dropsEdit

This monster has access to the rare drop table.
A ring of wealth, luck potion or collector's insignia are not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE price
Coins 1000Coins250–500; 3,000Common250–3,000
Uncut sapphireUncut sapphire1Common986
Uncut emeraldUncut emerald1Common2,309
Uncut rubyUncut ruby1Common3,020
Uncut diamondUncut diamond1Common4,560
Uncut diamondUncut diamond45–55 (noted)Rare205,200–250,800
Loop half of a keyLoop half of a key1Common17,461
Tooth half of a keyTooth half of a key1Common23,347
Uncut dragonstoneUncut dragonstone1Uncommon12,097
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare544,365–665,335
Dragon longswordDragon longsword1Common55,478
Dragon spearDragon spear1Rare34,640
BattlestaffBattlestaff180–220 (noted)Rare1,198,980–1,465,420
Rune javelinRune javelin5Rare935
Rune platebodyRune platebody1Uncommon37,117
Rune platebodyRune platebody15–25 (noted)Rare556,755–927,925
Shield left halfShield left half1Rare62,827
Dragon helmDragon helm1Uncommon57,738
Rune arrowheads 5Rune arrowheads113–137Common19,097–23,153
Onyx bolts 5Onyx bolts135–165Very rare1,050,840–1,284,360
Vecna skullVecna skull1Very rare59,537
Chaos talismanChaos talisman1Rare1,722
Nature talismanNature talisman1Rare1,098
Water talismanWater talisman65–82 (noted)Rare416,390–525,292
Earth talismanEarth talisman65–82 (noted)Rare137,085–172,938
Fire talismanFire talisman25–35 (noted)Rare42,725–59,815
Raw lobsterRaw lobster135–165 (noted)Common13,095–16,005
Raw sharkRaw shark225–275 (noted)Uncommon250,650–306,350
Big bonesBig bones72–90 (noted)Uncommon25,488–31,860
Dragon bonesDragon bones180–220 (noted)Rare295,020–360,580
CoalCoal200–1,100 (noted)Uncommon36,200–199,100
Gold oreGold ore90–110 (noted)Common11,700–14,300
Adamantite oreAdamantite ore180–220 (noted)Uncommon186,120–227,480
Adamant barAdamant bar14–16 (noted)Common42,392–48,448
Adamant barAdamant bar135–165 (noted)Rare408,780–499,620
Runite oreRunite ore90–110 (noted)Rare956,160–1,168,640
Rune barRune bar(noted)Common41,853
Rune barRune bar45–55 (noted)Rare627,795–767,305
Grimy torstolGrimy torstol90–110 (noted)Uncommon423,990–518,210
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon348,750–426,250
Super restore (4)Super restore (4)45–55 (noted)Uncommon261,765–319,935
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon207,450–253,550
Lantadyme seed 5Lantadyme seed14–16Uncommon16,170–18,480
Dwarf weed seed 5Dwarf weed seed14–16Uncommon13,034–14,896
Magic seed 5Magic seed4Uncommon438,492
Palm tree seed 5Palm tree seed10Rare1,890,980
FlaxFlax450–550 (noted)Common4,050–4,950
Molten glassMolten glass45–55 (noted)Common10,620–12,980
Soft claySoft clay450–550 (noted)Uncommon141,750–173,250
Yew logsYew logs68–82Uncommon13,056–15,744
Yew logsYew logs675–825 (noted)Rare129,600–158,400
Teak plankTeak plank45–55 (noted)Uncommon34,200–41,800
Mahogany plankMahogany plank270–330 (noted)Rare621,540–759,660
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 dropsEdit

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

TriviaEdit

  • After the 27 May 2009 update, Giant Rock Crabs dropped Charms in groups of three instead of ten. This hidden update initially angered players, though complaints died down as the rate of charm dropping was also increased.

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.