Fandom

RuneScape Wiki

Giant rock crab

37,491pages 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% dropsEdit

Item Quantity Rarity GE price
BonesBones1Always198

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).

Main dropsEdit

Item Quantity Rarity GE price
Water runeWater rune1–39Common16–624
Earth runeEarth rune1–40Common14–560
Air talismanAir talisman1Uncommon276
Mind talismanMind talisman1Uncommon312
Fire talismanFire talisman1Uncommon1,587
Cosmic talismanCosmic talisman1Rare350
Body talismanBody talisman1Rare351
Water talismanWater talisman1Uncommon5,407
Earth talismanEarth talisman1Uncommon1,950
Nature talismanNature talisman1Rare1,042
Chaos talismanChaos talisman1Uncommon1,590
Steel platebodySteel platebody1Common2,072
Black clawBlack claw1Common[1]2,153
Off-hand black clawOff-hand black claw1Common[1]1,072
Black platebodyBlack platebody1Common1,772
Mithril hatchetMithril hatchet1Common1,208
Rock-shell glovesRock-shell gloves1Uncommon8,574
Rock-shell bootsRock-shell boots1Uncommon6,261
Black warhammerBlack warhammer1Uncommon1,409
Off-hand black warhammerOff-hand black warhammer1Uncommon482
Adamant longswordAdamant longsword1Uncommon4,313
Adamant warhammerAdamant warhammer1Rare2,250
Poison ivy seed 5Poison ivy seed1Uncommon58
Belladonna seed 5Belladonna seed1Uncommon343
Guam seed 5Guam seed1Uncommon25
Marrentill seed 5Marrentill seed1Uncommon22
Tarromin seed 5Tarromin seed1Uncommon33
Harralander seed 5Harralander seed1Uncommon22
Toadflax seed 5Toadflax seed1Uncommon3,360
Ranarr seed 5Ranarr seed1Rare1,862
Irit seed 5Irit seed1Rare690
Avantoe seed 5Avantoe seed1Rare715
Snapdragon seed 5Snapdragon seed1Rare807
Cadantine seed 5Cadantine seed1Rare5,530
Lantadyme seed 5Lantadyme seed1Rare2,050
Kwuarm seed 5Kwuarm seed1Rare7,766
Dwarf weed seed 5Dwarf weed seed1Very rare1,898
Torstol seed 5Torstol seed1Very rare3,885
Grimy guamGrimy guam1Uncommon194
Grimy marrentillGrimy marrentill1Uncommon206
Grimy tarrominGrimy tarromin1Uncommon35
Grimy harralanderGrimy harralander1Uncommon89
Grimy ranarrGrimy ranarr1Rare3,451
Grimy iritGrimy irit1Rare3,533
Grimy avantoeGrimy avantoe1Rare2,531
Grimy kwuarmGrimy kwuarm1Rare5,715
Grimy cadantineGrimy cadantine1Rare5,549
Grimy lantadymeGrimy lantadyme1Rare3,953
Grimy dwarf weedGrimy dwarf weed1Rare2,940
Coins 100Coins23–137Common23–137
Raw lobsterRaw lobster1Common110
Raw bassRaw bass1Common250
TinderboxTinderbox1Common286
CasketCasket1Rare2,330
Rock-shell splinterRock-shell splinter1Uncommon9,368
Rock-shell chunkRock-shell chunk1Rare6,132
Rock-shell shardRock-shell shard1Rare7,141
  1. ^ a b Main hand and off hand claws are dropped together.

Tertiary dropsEdit

Item Quantity Rarity GE price
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.
Luck-enhancing items such as a ring of wealth or luck of the dwarves 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 sapphire1Common963
Uncut emeraldUncut emerald1Common2,133
Uncut rubyUncut ruby1Common2,680
Uncut diamondUncut diamond1Common4,009
Uncut diamondUncut diamond45–55 (noted)Rare180,405–220,495
Loop half of a keyLoop half of a key1Common19,735
Tooth half of a keyTooth half of a key1Common23,393
Uncut dragonstoneUncut dragonstone1Uncommon11,699
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare526,455–643,445
Dragon longswordDragon longsword1Common55,243
Dragon spearDragon spear1Rare37,295
BattlestaffBattlestaff180–220 (noted)Rare1,243,440–1,519,760
Rune javelinRune javelin5Rare900
Rune platebodyRune platebody1Uncommon37,151
Rune platebodyRune platebody15–25 (noted)Rare557,265–928,775
Shield left halfShield left half1Rare64,949
Dragon helmDragon helm1Uncommon58,568
Rune arrowheads 5Rune arrowheads113–137Common21,583–26,167
Onyx bolts 5Onyx bolts135–165Very rare1,050,570–1,284,030
Chaos talismanChaos talisman1Rare1,590
Nature talismanNature talisman1Rare1,042
Water talismanWater talisman65–82 (noted)Rare351,455–443,374
Earth talismanEarth talisman65–82 (noted)Rare126,750–159,900
Fire talismanFire talisman25–35 (noted)Rare39,675–55,545
Raw lobsterRaw lobster135–165 (noted)Common14,850–18,150
Raw sharkRaw shark225–275 (noted)Uncommon236,025–288,475
Big bonesBig bones72–90 (noted)Uncommon26,856–33,570
Dragon bonesDragon bones180–220 (noted)Rare310,320–379,280
CoalCoal200–1,100 (noted)Uncommon35,600–195,800
Gold oreGold ore90–110 (noted)Common13,590–16,610
Adamantite oreAdamantite ore180–220 (noted)Uncommon230,580–281,820
Adamant barAdamant bar14–16 (noted)Common44,156–50,464
Adamant barAdamant bar135–165 (noted)Rare425,790–520,410
Runite oreRunite ore90–110 (noted)Rare979,470–1,197,130
Rune barRune bar(noted)Common41,796
Rune barRune bar45–55 (noted)Rare626,940–766,260
Grimy torstolGrimy torstol90–110 (noted)Uncommon408,960–499,840
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon309,870–378,730
Super restore (4)Super restore (4)45–55 (noted)Uncommon256,905–313,995
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon218,295–266,805
Lantadyme seed 5Lantadyme seed14–16Uncommon28,700–32,800
Dwarf weed seed 5Dwarf weed seed14–16Uncommon26,572–30,368
Magic seed 5Magic seed4Uncommon442,952
Palm tree seed 5Palm tree seed10Rare2,030,790
FlaxFlax450–550 (noted)Common5,400–6,600
Molten glassMolten glass45–55 (noted)Common15,570–19,030
Soft claySoft clay450–550 (noted)Uncommon176,400–215,600
Yew logsYew logs68–82Uncommon14,008–16,892
Yew logsYew logs675–825 (noted)Rare139,050–169,950
Teak plankTeak plank45–55 (noted)Uncommon36,090–44,110
Mahogany plankMahogany plank270–330 (noted)Rare656,100–801,900
Blurberry specialBlurberry special1Uncommon1,792
Vecna skullVecna skull1Very rare*64,516
Hazelmere's signet ringHazelmere's signet ring1Very rare*15,689,056
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.