|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 297
Item Quantity Rarity GE Market Price Water rune 1–39 Common 26–1,014 Earth rune 2–37 Common 26–481 Air talisman 1 Uncommon 119 Mind talisman 1 Uncommon 267 Fire talisman 1 Uncommon 3,215 Cosmic talisman 1 Rare 1,490 Body talisman 1 Rare 216 Water talisman 1 Uncommon 13,892 Earth talisman 1 Uncommon 3,084 Nature talisman 1 Rare 303 Chaos talisman 1 Uncommon 960
Item Quantity Rarity GE Market Price Steel platebody 1 Common 1,040 Black claw 1 Uncommon 415 Off-hand black claw 1 Uncommon 1,796 Black platebody 1 Common 1,948 Mithril hatchet 1 Common 122 Rock-shell gloves 1 Uncommon 15,225 Rock-shell boots 1 Uncommon 3,119 Black warhammer 1 Uncommon 441 Off-hand black warhammer 1 Uncommon 360 Adamant longsword 1 Uncommon 1,404 Adamant warhammer 1 Rare 2,611
- 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 3 Belladonna seed 1 Uncommon 101 Guam seed 1 Uncommon 3 Marrentill seed 1 Uncommon 3 Tarromin seed 1 Uncommon 1 Harralander seed 1 Uncommon 10 Toadflax seed 1 Rare 1,778 Ranarr seed 1 Rare 1,412 Irit seed 1 Rare 358 Avantoe seed 1 Rare 3,535 Snapdragon seed 1 Rare 2,319 Cadantine seed 1 Rare 856 Lantadyme seed 1 Rare 43,320 Dwarf weed seed 1 Very rare 60,726 Torstol seed 1 Very rare 23,156
Item Quantity Rarity GE Market Price Grimy guam 1 Uncommon 979 Grimy marrentill 1 Uncommon 83 Grimy tarromin 1 Uncommon 34 Grimy harralander 1 Uncommon 186 Grimy ranarr 1 Rare 3,654 Grimy irit 1 Rare 2,794 Grimy avantoe 1 Rare 4,749 Grimy kwuarm 1 Rare 3,713 Grimy cadantine 1 Rare 1,955 Grimy lantadyme 1 Rare 10,325 Grimy dwarf weed 1 Rare 12,357
Item Quantity Rarity GE Market Price Coins 27, 28, 42, 70, 137 Common Not sold Raw lobster 1 Common 285 Raw bass 1 Common 439 Tinderbox 1 Common 325 Casket 1 Rare 8,850 Rock-shell splinter 1 Uncommon 12,013 Rock-shell chunk 1 Rare 5,628 Rock-shell shard 1 Rare 10,442 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 1,368 Uncut emerald 1 Common 2,997 Uncut ruby 1 Common 3,806 Uncut diamond 1 Uncommon 6,277 Loop half of a key 1 Uncommon 19,487 Tooth half of a key 1 Uncommon 43,434 Uncut dragonstone 1 Rare 15,516 Dragonstone 1 Rare 10,710 Dragon dagger 1 Uncommon 16,438 Rune battleaxe 1 Rare 23,920 Rune javelin 5 Rare 880 Adamant javelin 20 Very rare 1,060 Rune 2h sword 1 Very rare 37,386 Rune spear 1 Very rare 11,311 Dragon spear 1 Very rare 35,975 Dragon dagger 50 (noted) Very rare 821,900 Rune sq shield 1 Very rare 22,436 Rune kiteshield 1 Very rare 32,191 Shield left half 1 Very rare 64,290 Dragon helm 1 Very rare 59,080 Adamant bolts 200 Uncommon 22,200 Onyx bolts 150 Rare 1,265,850 Rune arrow 150–200, 500 Rare 22,650–75,500 Battlestaff 200 (noted) Rare 1,622,200 Air orb 1,000 (noted) Rare 2,630,000 Fire orb 1,000 (noted) Rare 2,084,000 Vecna skull 1 Very rare 101,881 Water talisman 1 Uncommon 13,892 Earth talisman 25–35 (noted) Uncommon 77,100–107,940 Fire talisman 25–35 (noted) Uncommon 80,375–112,525 Chaos talisman 1 Uncommon 960 Nature talisman 1 Uncommon 303 Pure essence 500–15,000 (noted) Uncommon 9,000–270,000 Nature rune 20–80 Rare 6,000–24,000 Soul rune 20 Rare 3,280 Law rune 45 Rare 12,240 Death rune 50, 121 Rare 8,450–20,449 Blood rune 50 Rare 16,100 Raw swordfish 125–250, 1,000 (noted) Uncommon 46,000–368,000 Raw shark 250–500 (noted) Uncommon 406,000–812,000 Big bones 150–500 (noted) Uncommon 90,600–302,000 Coal 150–7,500 (noted) Uncommon 32,700–1,635,000 Adamantite ore 150–800 (noted) Uncommon 323,100–1,723,200 Silver ore 100 (noted) Rare 10,200 Runite ore 100 (noted) Rare 1,155,600 Adamant bar 1,000–7,000 (noted) Rare 3,165,000–22,155,000 Rune bar 1, 50, 150 (noted) Rare 14,398–2,159,700 Clean ranarr 33 (noted) Uncommon 122,760 Clean toadflax 25–250 (noted) Uncommon 120,275–1,202,750 Clean snapdragon 30–120 (noted) Uncommon 146,490–585,960 Clean torstol 10–100 (noted) Uncommon 76,080–760,800 Saradomin brew (4) 250 (noted) Very rare 178,250 Watermelon seed 3 Uncommon 5,913 Yew seed 1–50 Rare 68,615–3,430,750 Magic seed 1–7 Rare 153,198–1,072,386 Palm tree seed 10 Rare 1,001,410 Snapdragon seed 1 Rare 2,319 Torstol seed 1–31 Rare 23,156–717,836 Fellstalk seed 2 Rare 2,242 Yew logs 50–20,000 (noted) Rare 23,450–9,380,000 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 every monster outside of Daemonheim.
- These drops are dropped alongside main drops.
Item Quantity Rarity GE Market Price Key token 1 Rare Not sold