This article is about monster. For Summoning familiar, see Granite lobster.
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Rock lobsters are found in the Waterbirth Island Dungeon's fifth sub-level, in room 16. They are similar to giant rock crabs in the fact that they are initially disguised as large rocks, but they will attack the player as they approach. They have very high defence (though they are weak to magic attacks) and can hit frequently into the low 300s. They attack every other game tick, making them incredibly dangerous especially if multiple lobsters attack at once. Rock lobsters are commonly killed by wealthy players because of their common crimson charm drops. Using the right technique, such as ice bursting or ice barraging, killing rock lobsters is one of the fastest ways of obtaining charms.


Rock lobsters are weak to water spells. Players are advised to kill them by casting Water Wave, Ice Burst, or better using a staff, such as a crystal staff or better, and Magic Power armour, such as robes of subjugation. Low-levelled players may wish to bring an emergency teleport and food, such as sharks. As rock lobsters frequently drop charms, players should use a charming imp. Soul Split can be used to eliminate the need for food or safe-spotting. Players may also use Blood Burst/Barrage in order to heal.



Item Quantity Rarity GE price
Earth runeEarth rune5Common100
Water runeWater rune9Common243
Pure essencePure essence4–8Common100–200


Item Quantity Rarity GE price
Fire talismanFire talisman1Uncommon1,493
Air talismanAir talisman1Uncommon268
Cosmic talismanCosmic talisman1Uncommon413
Body talismanBody talisman1Uncommon271
Water talismanWater talisman1Uncommon6,187


No charmGold charmGreen charmCrimson charmBlue charm
Represents a 90% confidence range based on a sample of 3,831 kills.
2 charms are dropped at a time.
Add data to the log (requires JavaScript).


Item Quantity Rarity GE price
Grimy guamGrimy guam1Uncommon250
Grimy marrentillGrimy marrentill1Uncommon289
Grimy tarrominGrimy tarromin1Uncommon30
Grimy harralanderGrimy harralander1Uncommon60
Grimy ranarrGrimy ranarr1Uncommon2,276
Grimy iritGrimy irit1Uncommon3,120
Grimy avantoeGrimy avantoe1Uncommon1,490
Grimy kwuarmGrimy kwuarm1Uncommon5,145
Grimy cadantineGrimy cadantine1Uncommon2,737
Grimy lantadymeGrimy lantadyme1Uncommon2,886
Grimy dwarf weedGrimy dwarf weed1Uncommon2,078


Item Quantity Rarity GE price
Steel arrow 5Steel arrow4–7Common56–98
Iron arrow 5Iron arrow2–17Common22–187
Fremennik shirt (brown)Fremennik shirt (brown)1Uncommon64
Fremennik bladeFremennik blade1UncommonNot sold


Item Quantity Rarity GE price
Onion seed 5Onion seed1Uncommon11
Potato seed 5Potato seed1Uncommon6
Cabbage seed 5Cabbage seed1Uncommon9
Tomato seed 5Tomato seed1Uncommon3
Watermelon seed 5Watermelon seed1–3Very rare1,050–3,150
Evil turnip seed 5Evil turnip seed1–3Very rare16–48
Lantadyme seed 5Lantadyme seed1Very rare650


Item Quantity Rarity GE price
Edible seaweedEdible seaweed4Common3,460
Raw lobsterRaw lobster1Common227
Lobster potLobster pot1Common195
Anagogic ortAnagogic ort20CommonNot sold
Soda ashSoda ash1Uncommon8
Coins 250Coins355Uncommon355
Snape grassSnape grass1Uncommon28
Sealed clue scroll (medium)Sealed clue scroll (medium)1RareNot sold
Court summonsCourt summons1Very rareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold

Rare drop table dropsEdit

This monster has access to the rare drop table.
Luck-enhancing items such as a ring of wealth or luck of the dwarves are not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE price
Coins 1000Coins250–500; 3,000Common250–3,000
Uncut sapphireUncut sapphire1Common895
Uncut emeraldUncut emerald1Common2,000
Uncut rubyUncut ruby1Common1,863
Uncut diamondUncut diamond1Common3,543
Uncut diamondUncut diamond45–55 (noted)Rare159,435–194,865
Loop half of a keyLoop half of a key1Common17,204
Tooth half of a keyTooth half of a key1Common20,781
Uncut dragonstoneUncut dragonstone1Uncommon11,481
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare516,645–631,455
Dragon longswordDragon longsword1Common57,772
Dragon spearDragon spear1Rare36,606
BattlestaffBattlestaff180–220 (noted)Rare1,085,580–1,326,820
Rune javelinRune javelin5Rare870
Rune platebodyRune platebody1Uncommon37,652
Rune platebodyRune platebody15–25 (noted)Rare564,780–941,300
Shield left halfShield left half1Rare65,929
Dragon helmDragon helm1Uncommon58,525
Rune arrowheads 5Rune arrowheads113–137Common26,216–31,784
Onyx bolts 5Onyx bolts135–165Very rare1,051,380–1,285,020
Chaos talismanChaos talisman1Rare1,397
Nature talismanNature talisman1Rare1,402
Water talismanWater talisman65–82 (noted)Rare402,155–507,334
Earth talismanEarth talisman65–82 (noted)Rare113,880–143,664
Fire talismanFire talisman25–35 (noted)Rare37,325–52,255
Raw lobsterRaw lobster135–165 (noted)Common30,645–37,455
Raw sharkRaw shark225–275 (noted)Uncommon246,150–300,850
Big bonesBig bones72–90 (noted)Uncommon14,544–18,180
Dragon bonesDragon bones180–220 (noted)Rare338,220–413,380
CoalCoal200–1,100 (noted)Uncommon27,600–151,800
Gold oreGold ore90–110 (noted)Common14,760–18,040
Adamantite oreAdamantite ore180–220 (noted)Uncommon197,100–240,900
Adamant barAdamant bar14–16 (noted)Common38,766–44,304
Adamant barAdamant bar135–165 (noted)Rare373,815–456,885
Runite oreRunite ore90–110 (noted)Rare1,058,850–1,294,150
Rune barRune bar(noted)Common41,478
Rune barRune bar45–55 (noted)Rare622,170–760,430
Grimy torstolGrimy torstol90–110 (noted)Uncommon339,480–414,920
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon185,400–226,600
Super restore (4)Super restore (4)45–55 (noted)Uncommon198,990–243,210
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon169,200–206,800
Lantadyme seed 5Lantadyme seed14–16Uncommon9,100–10,400
Dwarf weed seed 5Dwarf weed seed14–16Uncommon9,534–10,896
Magic seed 5Magic seed4Uncommon421,740
Palm tree seed 5Palm tree seed10Rare1,150,440
FlaxFlax450–550 (noted)Common18,900–23,100
Molten glassMolten glass45–55 (noted)Common14,175–17,325
Soft claySoft clay450–550 (noted)Uncommon210,600–257,400
Yew logsYew logs68–82Uncommon12,852–15,498
Yew logsYew logs675–825 (noted)Rare127,575–155,925
Teak plankTeak plank45–55 (noted)Uncommon33,300–40,700
Mahogany plankMahogany plank270–330 (noted)Rare393,660–481,140
Blurberry specialBlurberry special1Uncommon2,169
Vecna skullVecna skull1Very rare*265,426
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,885,212,297
Brawling gloves (Melee)Brawling gloves (Melee)1Very rareNot sold
Brawling gloves (Magic)Brawling gloves (Magic)1Very rareNot sold
Brawling gloves (Ranged)Brawling gloves (Ranged)1Very rareNot sold
Brawling gloves (Agility)Brawling gloves (Agility)1Very rareNot sold
Brawling gloves (Cooking)Brawling gloves (Cooking)1Very rareNot sold
Brawling gloves (FM)Brawling gloves (FM)1Very rareNot sold
Brawling gloves (Fishing)Brawling gloves (Fishing)1Very rareNot sold
Brawling gloves (Hunter)Brawling gloves (Hunter)1Very rareNot sold
Brawling gloves (Mining)Brawling gloves (Mining)1Very rareNot sold
Brawling gloves (Prayer)Brawling gloves (Prayer)1Very rareNot sold
Brawling gloves (Smithing)Brawling gloves (Smithing)1Very rareNot sold
Brawling gloves (Thieving)Brawling gloves (Thieving)1Very rareNot sold
Brawling gloves (WC)Brawling gloves (WC)1Very rareNot sold
Crystal triskelion fragment 1Crystal triskelion fragment 11Very rareNot sold
Crystal triskelion fragment 2Crystal triskelion fragment 21Very rareNot sold
Crystal triskelion fragment 3Crystal triskelion fragment 31Very rareNot 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 price
Key tokenKey token1RareNot sold
Mimic kill tokenMimic kill token1Very rare50,063


  • The examine text is a reference to the B-52's song "Rock Lobster".
  • After the ring of wealth update, the charm drop rates of hellhounds and rock lobsters had "gone walkabouts"[1]. This has now been fixed.
  • The rock lobster's combat level was 127 upon being introduced into RuneScape 2. It was later changed to 156 in a hidden update. Their combat levels changed again to 142 upon the release of the Evolution of Combat on 20 November 2012.


  1. ^ Mod Sneakman. "answer to." 16 March 2011. Hellhounds Nerf? Forums.