|Release date||1 August 2005 (Update)|
|XP per kill||399 (and 131.6 experience)|
|Examine text|| •No one likes crabs... especially really big ones!|
•"Heavy rock!" (when disguised as a boulder)
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.
- In the Waterbirth Island Dungeon.
- In the Chaos Tunnels (the middle south rift just east of Mage of Zamorak leads directly to them).
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:
- Helmet: Farseer helmet > Infinity > Ahrim's > Dagon'hai > Mystic/Sacred clay
- Necklace: Stream necklace > Amulet of fury > Amulet of glory > Amulet of magic/Amulet of power
- Cape: God cape > Soul war cape > Ardougne cloak (4/3>2) > Obsidian cape, Cape of Accomplishment,
- Body: Ahrim's > Infinity > Dagon'hai > Mystic/Sacred clay
- Legs: Ahrim's > Infinity > Dagon'hai > Mystic/Sacred clay
- Weapon Slot: Polypore Staff, Elemental staff or a 'Magic damage'-increasing staff
- Shield: God book (Unholy>Ancient>Balance) or Broodoo Shield > Mage's book > Arcane spirit shield
- Gloves: Barrows gloves > Rune gloves > Lunar gloves > Regen bracelet
- Boots: Infinity > Wizard's > Mystic > Lunar > Swanky
- Ring: Seers' ring (i) > Tokkul-Zo > Beacon ring > Ring of Wealth
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.
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.
Item Quantity Rarity GE Market Price Bones 1 Always 345
Item Quantity Rarity GE Market Price Water rune 1–39 Common 29–1,131 Earth rune 2–37 Common 32–592 Air talisman 1 Uncommon 113 Mind talisman 1 Uncommon 258 Fire talisman 1 Uncommon 4,027 Cosmic talisman 1 Rare 2,202 Body talisman 1 Rare 264 Water talisman 1 Uncommon 13,788 Earth talisman 1 Uncommon 4,020 Nature talisman 1 Rare 277 Chaos talisman 1 Uncommon 1,004
Item Quantity Rarity GE Market Price Steel platebody 1 Common 929 Black claw 1 Uncommon 375 Off-hand black claw 1 Uncommon 1,522 Black platebody 1 Common 1,916 Mithril hatchet 1 Common 107 Rock-shell gloves 1 Uncommon 18,510 Rock-shell boots 1 Uncommon 8,087 Black warhammer 1 Uncommon 450 Off-hand black warhammer 1 Uncommon 341 Adamant longsword 1 Uncommon 1,433 Adamant warhammer 1 Rare 2,531
- 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).
Item Quantity Rarity GE Market Price Poison ivy seed 1 Uncommon 5 Belladonna seed 1 Uncommon 84 Guam seed 1 Uncommon 3 Marrentill seed 1 Uncommon 10 Tarromin seed 1 Uncommon 7 Harralander seed 1 Uncommon 10 Toadflax seed 1 Rare 2,344 Ranarr seed 1 Rare 1,588 Irit seed 1 Rare 232 Avantoe seed 1 Rare 2,316 Snapdragon seed 1 Rare 1,574 Cadantine seed 1 Rare 805 Lantadyme seed 1 Rare 31,545 Dwarf weed seed 1 Very rare 39,845 Torstol seed 1 Very rare 24,525
Item Quantity Rarity GE Market Price Grimy guam 1 Uncommon 718 Grimy marrentill 1 Uncommon 94 Grimy tarromin 1 Uncommon 35 Grimy harralander 1 Uncommon 165 Grimy ranarr 1 Rare 3,038 Grimy irit 1 Rare 2,789 Grimy avantoe 1 Rare 4,356 Grimy kwuarm 1 Rare 4,497 Grimy cadantine 1 Rare 2,130 Grimy lantadyme 1 Rare 8,906 Grimy dwarf weed 1 Rare 9,828
Item Quantity Rarity GE Market Price Coins 27, 28, 42, 70, 137 Common Not sold Raw lobster 1 Common 288 Raw bass 1 Common 405 Tinderbox 1 Common 280 Casket 1 Rare 6,479 Rock-shell splinter 1 Uncommon 12,902 Rock-shell chunk 1 Rare 6,275 Rock-shell shard 1 Rare 11,584 Clue scroll (medium) 1 Very rare Not sold Starved ancient effigy 1 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 – 450; 3,000;
9,000; 10,000; 12,000
Common Not sold Uncut sapphire 1 Common 1,318 Uncut emerald 1 Common 2,707 Uncut ruby 1 Common 3,697 Uncut diamond 1 Uncommon 6,310 Loop half of a key 1 Uncommon 17,967 Tooth half of a key 1 Uncommon 39,712 Uncut dragonstone 1 Rare 15,617 Dragonstone 1 Rare 10,122 Dragon dagger 1 Uncommon 16,403 Rune battleaxe 1 Rare 24,212 Rune javelin 5 Rare 875 Adamant javelin 20 Very rare 1,200 Rune 2h sword 1 Very rare 37,208 Rune spear 1 Very rare 11,355 Dragon spear 1 Very rare 36,123 Dragon dagger 50 (noted) Very rare 820,150 Rune sq shield 1 Very rare 22,211 Rune kiteshield 1 Very rare 31,544 Shield left half 1 Very rare 64,258 Dragon helm 1 Very rare 59,109 Adamant bolts 200 Uncommon 16,600 Onyx bolts 150 Rare 1,263,150 Rune arrow 150–200, 500 Rare 22,500–75,000 Battlestaff 200 (noted) Rare 1,591,000 Vecna skull 1 Very rare 89,644 Water talisman 1 Uncommon 13,788 Earth talisman 25–35 (noted) Uncommon 100,500–140,700 Fire talisman 25–35 (noted) Uncommon 100,675–140,945 Chaos talisman 1 Uncommon 1,004 Nature talisman 1 Uncommon 277 Pure essence 500–15,000 (noted) Uncommon 9,000–270,000 Nature rune 20–80 Rare 5,600–22,400 Soul rune 20 Rare 3,400 Law rune 45 Rare 13,950 Death rune 50, 121 Rare 9,000–21,780 Blood rune 50 Rare 14,300 Raw swordfish 125–250, 1,000 (noted) Uncommon 49,250–394,000 Raw shark 250–500 (noted) Uncommon 438,500–877,000 Big bones 150–500 (noted) Uncommon 91,350–304,500 Coal 150–7,500 (noted) Uncommon 35,550–1,777,500 Adamantite ore 150–800 (noted) Uncommon 268,500–1,432,000 Silver ore 100 (noted) Rare 9,500 Runite ore 100 (noted) Rare 1,114,100 Adamant bar 1,000–7,000 (noted) Rare 3,000,000–21,000,000 Rune bar 1, 50 (noted) Rare 14,228–711,400 Clean toadflax 25–250 (noted) Uncommon 134,025–1,340,250 Clean snapdragon 30–120 (noted) Uncommon 129,150–516,600 Clean torstol 10–100 (noted) Uncommon 89,700–897,000 Watermelon seed 3 Uncommon 5,967 Yew seed 1–50 Rare 69,344–3,467,200 Magic seed 1–7 Rare 116,711–816,977 Palm tree seed 10 Rare 1,147,970 Snapdragon seed 1 Rare 1,574 Yew logs 50–20,000 (noted) Rare 20,650–8,260,000 Crystal triskelion fragment 1 1 Very rare Not sold Crystal triskelion fragment 2 1 Very rare Not sold Crystal triskelion fragment 3 1 Very rare Not sold Brawling gloves (Melee) 1 Very rare Not sold Brawling gloves (Magic) 1 Very rare Not sold Brawling gloves (Ranged) 1 Very rare Not sold Brawling gloves (Agility) 1 Very rare Not sold Brawling gloves (Cooking) 1 Very rare Not sold Brawling gloves (FM) 1 Very rare Not sold Brawling gloves (Fishing) 1 Very rare Not sold Brawling gloves (Hunter) 1 Very rare Not sold Brawling gloves (Mining) 1 Very rare Not sold Brawling gloves (Prayer) 1 Very rare Not sold Brawling gloves (Smithing) 1 Very rare Not sold Brawling gloves (Thieving) 1 Very rare Not sold Brawling gloves (WC) 1 Very rare Not sold
- 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 1 Rare Not sold