Wikia

RuneScape Wiki

Giant rock crab

Discuss13
26,529pages on
this wiki

Redirected from Giant Rock Crab

Old School RuneScape icon
[view]

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

ChaosTunnels entrances

Use the middle south entrance just east of the wizard who teleports player to the Abyss. This is labelled entrance number 2 and goes directly to the giant rock crabs.

StrategyEdit

Steel full helm detail old
Due to an update, the information in this article may be out-of-date.
Reason: Evolution of combat
You can help improve this page by editing it.


Giant Rock Crabs are extremely resistant to Melee and Ranged attacks, and thus are only effectively killed using Magic.

A notably effective and economic way to kill Giant Rock Crabs is the Black Salamander, or the Polypore Staff. The Black Salamander's magic attack, and the Polypore staff's attack acts as a normal magic attack and takes advantage of their lower magic defence. Their magic defence is so low you can utilise high level defensive armour without losing much accuracy.

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.

They are most vulnerable to fire-based spells.

Mage Gear is as follows:

Note: Another useful tactic is to use (Elite) Void knight equipment, preferably with a Deflector and a good mage robe top.

If you are using ice burst or barrage the arcane stream necklace is not as important here because magic damage boost adds only to the target you click on. The other 8 targets do not receive the damage boost from it or your staff, so you would be better off using a necklace with a prayer bonus.

If using burst or barrage spells the Staff of light is recommended despite the lower mage bonus (in comparison to Master wand, or Chaotic staff) given the fact that it gives free casts; when used in conjunction with Battle Robes, it has a 50% chance of saving runes when casting. Even when this effect doesn't activate, the Battle Robes themselves have a chance to save runes, effectively adding up to a 60% chance of saving runes. The Battle robes will, however, only last for 6 hours of combat after which they will need to be recharged (270 tokens).

Provided you are going to be bursting, a Tome of frost is recommended above items that provide a higher magic bonus. This is because rock lobsters have fairly low magic defence (thus the difference in offensive magic bonus is negligible), while the tome saves an inventory space and the need for Water runes.

RetreatEdit

The Giant Rock Crab is one of few monsters in RuneScape that will retreat from battle when they become critically wounded. One way to avoid this (in the southern room in the chaos tunnels) is to kill the eastern one first (using the safespot in the picture above). Then when picking up the drop from them you will have likely alerted a few other giant rock crabs. Go back to the safespot and two should follow you there, from there kill them. While you're killing them the one you first killed should spawn but not attack (unless you go beside it). Because he spawns the other two can't get out and are trapped, so they cannot retreat. After killing the first one, don't pick up the drop and proceed to kill the second one. This means that you will not alert the one that spawned and you will have another retreat free kill. This may be repeated indefinitely in this fashion.

DropsEdit

100%Edit

  Item Quantity Rarity GE market price
Bones Bones 1 1 Always 298

Runes/TalismansEdit

  Item Quantity Rarity GE market price
Water rune Water rune 1–39 2 Common 28–1,092
Earth rune Earth rune 2–37 2 Common 34–629
Air talisman Air talisman 1 3 Uncommon 138
Mind talisman Mind talisman 1 3 Uncommon 199
Fire talisman Fire talisman 1 3 Uncommon 5,254
Cosmic talisman Cosmic talisman 1 4 Rare 1,328
Body talisman Body talisman 1 4 Rare 224
Water talisman Water talisman 1 3 Uncommon 16,022
Earth talisman Earth talisman 1 3 Uncommon 5,395
Nature talisman Nature talisman 1 4 Rare 424
Chaos talisman Chaos talisman 1 3 Uncommon 973

Weaponry/ArmourEdit

  Item Quantity Rarity GE market price
Steel platebody Steel platebody 1 2 Common 2,302
Black claw Black claw 1 3 Uncommon [1] 319
Off-hand black claw Off-hand black claw 1 3 Uncommon [1] 1,297
Black platebody Black platebody 1 2 Common 1,861
Mithril hatchet Mithril hatchet 1 2 Common 108
Rock-shell gloves Rock-shell gloves 1 3 Uncommon 30,415
Rock-shell boots Rock-shell boots 1 3 Uncommon 12,393
Black warhammer Black warhammer 1 3 Uncommon 452
Off-hand black warhammer Off-hand black warhammer 1 3 Uncommon 332
Adamant longsword Adamant longsword 1 3 Uncommon 1,424
Adamant warhammer Adamant warhammer 1 4 Rare 2,621
  1. ^ a b Main hand and off hand claws are dropped together.

CharmsEdit

Charm drop percentages
No charms Gold charm Green charm Crimson charm Blue charm

30–33%

43–46%

9–11%

10–12%

3–4%

Represents 90% confidence range, based on a sample of 2,507 kills.
3 charms are dropped at a time.

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


SeedsEdit

  Item Quantity Rarity GE market price
Poison ivy seed 5 Poison ivy seed 1 3 Uncommon 9
Belladonna seed 5 Belladonna seed 1 3 Uncommon 59
Herb seed 5 Guam seed 1 3 Uncommon 6
Herb seed 5 Marrentill seed 1 3 Uncommon 23
Herb seed 5 Tarromin seed 1 3 Uncommon 13
Herb seed 5 Harralander seed 1 3 Uncommon 9
Herb seed 5 Toadflax seed 1 4 Rare 1,351
Herb seed 5 Ranarr seed 1 4 Rare 1,418
Herb seed 5 Irit seed 1 4 Rare 233
Herb seed 5 Avantoe seed 1 4 Rare 3,021
Herb seed 5 Snapdragon seed 1 4 Rare 2,539
Herb seed 5 Cadantine seed 1 4 Rare 799
Herb seed 5 Lantadyme seed 1 4 Rare 38,773
Herb seed 5 Dwarf weed seed 1 5 Very rare 40,848
Herb seed 5 Torstol seed 1 5 Very rare 36,153

HerbsEdit

  Item Quantity Rarity GE market price
Grimy guam Grimy guam 1 3 Uncommon 564
Grimy marrentill Grimy marrentill 1 3 Uncommon 125
Grimy tarromin Grimy tarromin 1 3 Uncommon 44
Grimy harralander Grimy harralander 1 3 Uncommon 130
Grimy ranarr Grimy ranarr 1 4 Rare 3,126
Grimy irit Grimy irit 1 4 Rare 2,548
Grimy avantoe Grimy avantoe 1 4 Rare 4,412
Grimy kwuarm Grimy kwuarm 1 4 Rare 3,511
Grimy cadantine Grimy cadantine 1 4 Rare 2,307
Grimy lantadyme Grimy lantadyme 1 4 Rare 9,004
Grimy dwarf weed Grimy dwarf weed 1 4 Rare 9,373

OtherEdit

  Item Quantity Rarity GE market price
Coins 100 Coins 27, 28, 42, 70, 137 2 Common Not sold
Raw lobster Raw lobster 1 2 Common 344
Raw bass Raw bass 1 2 Common 476
Tinderbox Tinderbox 1 2 Common 162
Casket Casket 1 4 Rare 4,753
Rock-shell splinter Rock-shell splinter 1 3 Uncommon 12,415
Rock-shell chunk Rock-shell chunk 1 4 Rare 6,345
Rock-shell shard Rock-shell shard 1 4 Rare 13,787
Clue scroll Clue scroll (medium) 1 5 Very rare Not sold
Ancient effigy Starved 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 1,255
Uncut emerald Uncut emerald 1 2 Common 2,751
Uncut ruby Uncut ruby 1 2 Common 3,546
Uncut diamond Uncut diamond 1 3 Uncommon 5,843
Loop half of a key Loop half of a key 1 3 Uncommon 32,996
Tooth half of a key Tooth half of a key 1 3 Uncommon 42,167
Uncut dragonstone Uncut dragonstone 1 4 Rare 15,502
Dragonstone Dragonstone 1 4 Rare 9,984
Dragon dagger Dragon dagger 1 3 Uncommon 16,452
Rune battleaxe Rune battleaxe 1 4 Rare 24,131
Rune javelin Rune javelin 5 4 Rare 840
Adamant javelin Adamant javelin 20 5 Very rare 1,280
Rune 2h sword Rune 2h sword 1 5 Very rare 37,356
Rune spear Rune spear 1 5 Very rare 11,419
Dragon spear Dragon spear 1 5 Very rare 36,478
Battlestaff Battlestaff 200 (noted) 4 Rare 1,529,400
Rune sq shield Rune sq shield 1 5 Very rare 21,988
Rune kiteshield Rune kiteshield 1 5 Very rare 31,603
Shield left half Shield left half 1 5 Very rare 63,247
Dragon helm Dragon helm 1 5 Very rare 59,600
Adamant bolts 5 Adamant bolts 200 3 Uncommon 13,800
Onyx bolts 5 Onyx bolts 150 4 Rare 1,272,600
Rune arrow 5 Rune arrow 150 4 Rare 22,650
Vecna skull Vecna skull 1 5 Very rare 107,406
Water talisman Water talisman 1 3 Uncommon 16,022
Earth talisman Earth talisman 25–35 (noted) 3 Uncommon 134,875–188,825
Fire talisman Fire talisman 25–35 (noted) 3 Uncommon 131,350–183,890
Chaos talisman Chaos talisman 1 3 Uncommon 973
Nature talisman Nature talisman 1 3 Uncommon 424
Pure essence Pure essence 1,000–1,500 (noted) 3 Uncommon 15,000–22,500
Nature rune Nature rune 60–80 4 Rare 17,280–23,040
Soul rune Soul rune 20 4 Rare 3,780
Law rune Law rune 45 4 Rare 21,735
Death rune Death rune 50 4 Rare 13,150
Blood rune Blood rune 50 4 Rare 19,900
Raw swordfish Raw swordfish 125–250 (noted) 3 Uncommon 51,375–102,750
Raw shark Raw shark 250 (noted) 3 Uncommon 327,500
Big bones Big bones 150–180 (noted) 3 Uncommon 96,900–116,280
Coal Coal 550–700 (noted) 3 Uncommon 132,550–168,700
Adamantite ore Adamantite ore 150–250 (noted) 3 Uncommon 294,000–490,000
Silver ore Silver ore 100 (noted) 4 Rare 8,800
Runite ore Runite ore 100 (noted) 4 Rare 1,067,000
Rune bar Rune bar 1 2 Common 13,906
Rune bar Rune bar 50 (noted) 5 Very rare 695,300
Clean toadflax Clean toadflax 35–45 (noted) 3 Uncommon 140,630–180,810
Clean snapdragon Clean snapdragon 30–35 (noted) 3 Uncommon 150,900–176,050
Clean torstol Clean torstol 16–34 (noted) 3 Uncommon 133,536–283,764
Herb seed 5 Snapdragon seed 1 2 Common 2,539
Herb seed 5 Torstol seed 1 3 Uncommon 36,153
Watermelon seed 5 Watermelon seed 3 3 Uncommon 6,519
Magic seed 5 Magic seed 3–7 4 Rare 414,126–966,294
Palm tree seed 5 Palm tree seed 10 4 Rare 1,137,860
Yew logs Yew logs 450–550 (noted) 4 Rare 171,900–210,100
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
Ghostweave Ghostweave 10–30 4 Rare Not 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.

Around Wikia's network

Random Wiki