|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 337
Item Quantity Rarity GE Market Price Water rune 1–39 Common 28–1,092 Earth rune 2–37 Common 28–518 Air talisman 1 Uncommon 125 Mind talisman 1 Uncommon 251 Fire talisman 1 Uncommon 3,201 Cosmic talisman 1 Rare 1,349 Body talisman 1 Rare 221 Water talisman 1 Uncommon 13,268 Earth talisman 1 Uncommon 3,269 Nature talisman 1 Rare 372 Chaos talisman 1 Uncommon 1,054
Item Quantity Rarity GE Market Price Steel platebody 1 Common 1,232 Black claw 1 Uncommon 424 Off-hand black claw 1 Uncommon 1,866 Black platebody 1 Common 1,906 Mithril hatchet 1 Common 106 Rock-shell gloves 1 Uncommon 12,690 Rock-shell boots 1 Uncommon 2,445 Black warhammer 1 Uncommon 430 Off-hand black warhammer 1 Uncommon 368 Adamant longsword 1 Uncommon 1,457 Adamant warhammer 1 Rare 2,570
- 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 97 Guam seed 1 Uncommon 3 Marrentill seed 1 Uncommon 4 Tarromin seed 1 Uncommon 4 Harralander seed 1 Uncommon 10 Toadflax seed 1 Rare 1,876 Ranarr seed 1 Rare 1,503 Irit seed 1 Rare 344 Avantoe seed 1 Rare 3,692 Snapdragon seed 1 Rare 2,425 Cadantine seed 1 Rare 966 Lantadyme seed 1 Rare 43,402 Dwarf weed seed 1 Very rare 66,144 Torstol seed 1 Very rare 25,317
Item Quantity Rarity GE Market Price Grimy guam 1 Uncommon 741 Grimy marrentill 1 Uncommon 72 Grimy tarromin 1 Uncommon 36 Grimy harralander 1 Uncommon 183 Grimy ranarr 1 Rare 3,235 Grimy irit 1 Rare 2,685 Grimy avantoe 1 Rare 4,633 Grimy kwuarm 1 Rare 4,476 Grimy cadantine 1 Rare 1,695 Grimy lantadyme 1 Rare 10,139 Grimy dwarf weed 1 Rare 12,534
Item Quantity Rarity GE Market Price Coins 27, 28, 42, 70, 137 Common Not sold Raw lobster 1 Common 272 Raw bass 1 Common 462 Tinderbox 1 Common 301 Casket 1 Rare 8,889 Rock-shell splinter 1 Uncommon 11,517 Rock-shell chunk 1 Rare 5,545 Rock-shell shard 1 Rare 10,080 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 1,498 Uncut emerald 1 Common 3,035 Uncut ruby 1 Common 3,586 Uncut diamond 1 Uncommon 7,427 Loop half of a key 1 Uncommon 18,544 Tooth half of a key 1 Uncommon 42,254 Uncut dragonstone 1 Rare 15,600 Dragonstone 1 Rare 10,551 Dragon dagger 1 Uncommon 15,835 Rune battleaxe 1 Rare 24,260 Rune javelin 5 Rare 865 Adamant javelin 20 Very rare 1,160 Rune 2h sword 1 Very rare 37,179 Rune spear 1 Very rare 11,439 Dragon spear 1 Very rare 35,969 Dragon dagger 50 (noted) Very rare 791,750 Rune sq shield 1 Very rare 22,275 Rune kiteshield 1 Very rare 31,737 Shield left half 1 Very rare 64,381 Dragon helm 1 Very rare 58,739 Adamant bolts 200 Uncommon 19,400 Onyx bolts 150 Rare 1,268,250 Rune arrow 150–200, 500 Rare 22,200–74,000 Battlestaff 200 (noted) Rare 1,621,800 Air orb 1,000 (noted) Rare 2,565,000 Fire orb 1,000 (noted) Rare 2,135,000 Vecna skull 1 Very rare 100,064 Water talisman 1 Uncommon 13,268 Earth talisman 25–35 (noted) Uncommon 81,725–114,415 Fire talisman 25–35 (noted) Uncommon 80,025–112,035 Chaos talisman 1 Uncommon 1,054 Nature talisman 1 Uncommon 372 Pure essence 500–15,000 (noted) Uncommon 9,500–285,000 Nature rune 20–80 Rare 6,080–24,320 Soul rune 20 Rare 3,200 Law rune 45 Rare 14,535 Death rune 50, 121 Rare 8,450–20,449 Blood rune 50 Rare 15,700 Raw swordfish 125–250, 1,000 (noted) Uncommon 47,500–380,000 Raw shark 250–500 (noted) Uncommon 369,000–738,000 Big bones 150–500 (noted) Uncommon 92,100–307,000 Coal 150–7,500 (noted) Uncommon 33,600–1,680,000 Adamantite ore 150–800 (noted) Uncommon 366,750–1,956,000 Silver ore 100 (noted) Rare 10,500 Runite ore 100 (noted) Rare 1,185,200 Adamant bar 1,000–7,000 (noted) Rare 3,439,000–24,073,000 Rune bar 1, 50, 150 (noted) Rare 14,414–2,162,100 Clean ranarr 33 (noted) Uncommon 110,154 Clean toadflax 25–250 (noted) Uncommon 120,125–1,201,250 Clean snapdragon 30–120 (noted) Uncommon 146,280–585,120 Clean torstol 10–100 (noted) Uncommon 77,020–770,200 Saradomin brew (4) 250 (noted) Very rare 211,750 Watermelon seed 3 Uncommon 6,360 Yew seed 1–50 Rare 68,499–3,424,950 Magic seed 1–7 Rare 161,158–1,128,106 Palm tree seed 10 Rare 1,074,350 Snapdragon seed 1 Rare 2,425 Torstol seed 1–31 Rare 25,317–784,827 Fellstalk seed 2 Rare 2,352 Yew logs 50–20,000 (noted) Rare 24,950–9,980,000 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