|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 362
Item Quantity Rarity GE Market Price Water rune 1–39 Common 37–1,443 Earth rune 2–37 Common 40–740 Air talisman 1 Uncommon 125 Mind talisman 1 Uncommon 280 Fire talisman 1 Uncommon 2,778 Cosmic talisman 1 Rare 2,749 Body talisman 1 Rare 228 Water talisman 1 Uncommon 12,616 Earth talisman 1 Uncommon 2,771 Nature talisman 1 Rare 363 Chaos talisman 1 Uncommon 968
Item Quantity Rarity GE Market Price Steel platebody 1 Common 1,225 Black claw 1 Uncommon 360 Off-hand black claw 1 Uncommon 1,457 Black platebody 1 Common 1,857 Mithril hatchet 1 Common 105 Rock-shell gloves 1 Uncommon 26,973 Rock-shell boots 1 Uncommon 10,168 Black warhammer 1 Uncommon 446 Off-hand black warhammer 1 Uncommon 336 Adamant longsword 1 Uncommon 1,399 Adamant warhammer 1 Rare 2,566
- 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 6 Belladonna seed 1 Uncommon 76 Guam seed 1 Uncommon 5 Marrentill seed 1 Uncommon 18 Tarromin seed 1 Uncommon 12 Harralander seed 1 Uncommon 9 Toadflax seed 1 Rare 3,229 Ranarr seed 1 Rare 1,555 Irit seed 1 Rare 229 Avantoe seed 1 Rare 2,298 Snapdragon seed 1 Rare 1,514 Cadantine seed 1 Rare 906 Lantadyme seed 1 Rare 35,976 Dwarf weed seed 1 Very rare 45,431 Torstol seed 1 Very rare 36,273
Item Quantity Rarity GE Market Price Grimy guam 1 Uncommon 728 Grimy marrentill 1 Uncommon 122 Grimy tarromin 1 Uncommon 40 Grimy harralander 1 Uncommon 153 Grimy ranarr 1 Rare 2,843 Grimy irit 1 Rare 2,601 Grimy avantoe 1 Rare 4,527 Grimy kwuarm 1 Rare 4,151 Grimy cadantine 1 Rare 2,090 Grimy lantadyme 1 Rare 9,554 Grimy dwarf weed 1 Rare 9,513
Item Quantity Rarity GE Market Price Coins 27, 28, 42, 70, 137 Common Not sold Raw lobster 1 Common 305 Raw bass 1 Common 420 Tinderbox 1 Common 169 Casket 1 Rare 5,637 Rock-shell splinter 1 Uncommon 12,830 Rock-shell chunk 1 Rare 6,482 Rock-shell shard 1 Rare 12,772 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 1,543 Uncut emerald 1 Common 2,792 Uncut ruby 1 Common 3,993 Uncut diamond 1 Uncommon 6,313 Loop half of a key 1 Uncommon 17,750 Tooth half of a key 1 Uncommon 38,320 Uncut dragonstone 1 Rare 14,953 Dragonstone 1 Rare 10,390 Dragon dagger 1 Uncommon 16,551 Rune battleaxe 1 Rare 24,216 Rune javelin 5 Rare 860 Adamant javelin 20 Very rare 1,220 Rune 2h sword 1 Very rare 37,453 Rune spear 1 Very rare 11,389 Dragon spear 1 Very rare 36,901 Dragon dagger 50 (noted) Very rare 827,550 Rune sq shield 1 Very rare 22,011 Rune kiteshield 1 Very rare 31,814 Shield left half 1 Very rare 64,266 Dragon helm 1 Very rare 59,038 Adamant bolts 200 Uncommon 13,400 Onyx bolts 150 Rare 1,258,050 Rune arrow 150–200, 500 Rare 22,650–75,500 Battlestaff 200 (noted) Rare 1,604,200 Vecna skull 1 Very rare 104,649 Water talisman 1 Uncommon 12,616 Earth talisman 25–35 (noted) Uncommon 69,275–96,985 Fire talisman 25–35 (noted) Uncommon 69,450–97,230 Chaos talisman 1 Uncommon 968 Nature talisman 1 Uncommon 363 Pure essence 500–15,000 (noted) Uncommon 9,500–285,000 Nature rune 20–80 Rare 5,760–23,040 Soul rune 20 Rare 5,060 Law rune 45 Rare 15,255 Death rune 50, 121 Rare 10,450–25,289 Blood rune 50 Rare 16,000 Raw swordfish 125–250, 1,000 (noted) Uncommon 51,625–413,000 Raw shark 250–500 (noted) Uncommon 478,000–956,000 Big bones 150–500 (noted) Uncommon 107,700–359,000 Coal 150–7,500 (noted) Uncommon 41,250–2,062,500 Adamantite ore 150–800 (noted) Uncommon 319,350–1,703,200 Silver ore 100 (noted) Rare 8,900 Runite ore 100 (noted) Rare 1,132,400 Adamant bar 1,000–7,000 (noted) Rare 3,688,000–25,816,000 Rune bar 1, 50 (noted) Rare 14,436–721,800 Clean toadflax 25–250 (noted) Uncommon 132,550–1,325,500 Clean snapdragon 30–120 (noted) Uncommon 136,950–547,800 Clean torstol 10–100 (noted) Uncommon 93,630–936,300 Watermelon seed 3 Uncommon 8,076 Yew seed 1–50 Rare 69,958–3,497,900 Magic seed 1–7 Rare 139,865–979,055 Palm tree seed 10 Rare 1,368,780 Snapdragon seed 1 Rare 1,514 Yew logs 50–20,000 (noted) Rare 20,750–8,300,000 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