Rock lobster

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ActiveHidden
Rock lobster
Rock lobster.png
Released7 November 2005 (Update)
MembersYes
Combat level127
Size2x2
ExamineIt wasn't a rock... It was a rock lobster!
Combat info
XP bonus+2.5%
Max hit11
AggressiveYes
PoisonousNo
Attack styleCrush
Attack speedMonster attack speed 2.png
Combat icon.png Combat stats
Hitpoints icon.pngAttack icon.pngStrength icon.pngDefence icon.pngMagic icon.pngRanged icon.png
15010010010011
Attack icon.png Aggressive stats
Monster attack bonusMonster strength bonusMagic icon.pngMonster magic strength bonusRanged icon.pngMonster ranged strength bonus
+0+0+0+0+0+0
Defence icon.png Defensive stats
White dagger.pngWhite scimitar.pngWhite warhammer.pngMagic icon.pngRanged icon.png
+100+100+50+50+150
Immunities
PoisonNot immune
VenomNot immune
CannonsNot immune
ThrallsNot immune
Advanced data
Monster ID5944

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 up to 15 Hitpoints, but rarely hit over 11 Hitpoints. Their attack speed is as fast as darts on Rapid (they attack every second game tick), making them incredibly dangerous.

Drops[edit | edit source]

Drop rates estimated based on 6,767 kills from the Drop Rate Project, unless otherwise cited.

100%[edit | edit source]

Item Quantity Rarity Price High Alch
Raw lobster.png: Rock lobster drops Raw lobster with rarity Always in quantity 1Raw lobster1Always16242

Runes and ammunition[edit | edit source]

Item Quantity Rarity Price High Alch
Earth rune.png: Rock lobster drops Earth rune with rarity 10/128 in quantity 1-20Earth rune1–2010/1285–1002–40
Water rune.png: Rock lobster drops Water rune with rarity 10/128 in quantity 1-20Water rune1–2010/1285–1002–40
Steel arrow.png: Rock lobster drops Steel arrow with rarity 10/128 in quantity 1-10Steel arrow1–1010/1287–707–70
Iron arrow.png: Rock lobster drops Iron arrow with rarity 10/128 in quantity 1-20Iron arrow1–2010/1283–601–20

Herbs[edit | edit source]

There is a 3/128 chance of rolling the herb drop table.

Item Quantity Rarity Price High Alch
Grimy guam leaf.png: Rock lobster drops Grimy guam leaf with rarity 1/170.7 in quantity 1Grimy guam leaf11/170.7517
Grimy marrentill.png: Rock lobster drops Grimy marrentill with rarity 1/227.6 in quantity 1Grimy marrentill11/227.6248
Grimy tarromin.png: Rock lobster drops Grimy tarromin with rarity 1/303.4 in quantity 1Grimy tarromin11/303.41209
Grimy harralander.png: Rock lobster drops Grimy harralander with rarity 1/390.1 in quantity 1Grimy harralander11/390.16749
Grimy ranarr weed.png: Rock lobster drops Grimy ranarr weed with rarity 1/496.5 in quantity 1Grimy ranarr weed11/496.56,66318
Grimy irit leaf.png: Rock lobster drops Grimy irit leaf with rarity 1/682.7 in quantity 1Grimy irit leaf11/682.780710
Grimy avantoe.png: Rock lobster drops Grimy avantoe with rarity 1/910.2 in quantity 1Grimy avantoe11/910.22,30210
Grimy kwuarm.png: Rock lobster drops Grimy kwuarm with rarity 1/1,092.3 in quantity 1Grimy kwuarm11/1,092.32,45212
Grimy cadantine.png: Rock lobster drops Grimy cadantine with rarity 1/1,365.3 in quantity 1Grimy cadantine11/1,365.32,34913
Grimy lantadyme.png: Rock lobster drops Grimy lantadyme with rarity 1/1,820.4 in quantity 1Grimy lantadyme11/1,820.41,60013
Grimy dwarf weed.png: Rock lobster drops Grimy dwarf weed with rarity 1/1,820.4 in quantity 1Grimy dwarf weed11/1,820.485314

Seeds[edit | edit source]

There is a 1/128 chance of rolling the allotment seed drop table.

Item Quantity Rarity Price High Alch
Potato seed.png: Rock lobster drops Potato seed with rarity 1/256 in quantity 1-4Potato seed1–41/2561–41–4
Onion seed.png: Rock lobster drops Onion seed with rarity 1/512 in quantity 1-3Onion seed1–31/5121–31–3
Cabbage seed.png: Rock lobster drops Cabbage seed with rarity 1/1,024 in quantity 1-3Cabbage seed1–31/1,0241–31–3
Tomato seed.png: Rock lobster drops Tomato seed with rarity 1/2,048 in quantity 1-2Tomato seed1–21/2,0481–22–4
Sweetcorn seed.png: Rock lobster drops Sweetcorn seed with rarity 1/4,096 in quantity 1-2Sweetcorn seed1–21/4,0961–24–8
Strawberry seed.png: Rock lobster drops Strawberry seed with rarity 1/8,192 in quantity 1Strawberry seed11/8,192210
Watermelon seed.png: Rock lobster drops Watermelon seed with rarity 1/16,384 in quantity 1Watermelon seed11/16,3841633
Snape grass seed.png: Rock lobster drops Snape grass seed with rarity 1/16,384 in quantity 1Snape grass seed11/16,3843,24456

Talismans[edit | edit source]

There is a 4/128 chance of rolling the talisman drop table.

Item Quantity Rarity Price High Alch
Air talisman.png: Rock lobster drops Air talisman with rarity 1/224 in quantity 1Air talisman11/224642
Body talisman.png: Rock lobster drops Body talisman with rarity 1/224 in quantity 1Body talisman11/2241,5002
Earth talisman.png: Rock lobster drops Earth talisman with rarity 1/224 in quantity 1Earth talisman11/2241932
Fire talisman.png: Rock lobster drops Fire talisman with rarity 1/224 in quantity 1Fire talisman11/2242,2942
Mind talisman.png: Rock lobster drops Mind talisman with rarity 1/224 in quantity 1Mind talisman11/2248882
Water talisman.png: Rock lobster drops Water talisman with rarity 1/224 in quantity 1Water talisman11/2241672
Cosmic talisman.png: Rock lobster drops Cosmic talisman with rarity 1/560 in quantity 1Cosmic talisman11/5601682
Chaos talisman.png: Rock lobster drops Chaos talisman with rarity 1/746.7 in quantity 1Chaos talisman11/746.71862
Nature talisman.png: Rock lobster drops Nature talisman with rarity 1/746.7 in quantity 1Nature talisman11/746.72442

Materials[edit | edit source]

Item Quantity Rarity Price High Alch
Pure essence.png: Rock lobster drops Pure essence with rarity 10/128 in quantity 4Pure essence410/12888
Seaweed.png: Rock lobster drops Seaweed with rarity 10/128 in quantity 1-3Seaweed1–310/12832–961–3
Soda ash.png: Rock lobster drops Soda ash with rarity 10/128 in quantity 1Soda ash110/128471
Snape grass.png: Rock lobster drops Snape grass with rarity 10/128 in quantity 1Snape grass110/1283416

Other[edit | edit source]

Item Quantity Rarity Price High Alch
Edible seaweed.png: Rock lobster drops Edible seaweed with rarity 10/128 in quantity 1-3Edible seaweed1–310/128111–3331–3
Lobster pot.png: Rock lobster drops Lobster pot with rarity 10/128 in quantity 1Lobster pot110/12810412
Tinderbox.png: Rock lobster drops Tinderbox with rarity 10/128 in quantity 1Tinderbox110/128660

Gem drop table[edit | edit source]

There is a 1/128 chance of rolling the gem drop table.

Item Quantity Rarity Price High Alch
This does not exist.NothingN/A1/256.47; Never[d 1]N/AN/A
Uncut sapphire.png: Rock lobster drops Uncut sapphire with rarity 1/512 in quantity 1Uncut sapphire11/512; 1/260[d 2]25715
Uncut emerald.png: Rock lobster drops Uncut emerald with rarity 1/1,024 in quantity 1Uncut emerald11/1,024; 1/520[d 2]50330
Uncut ruby.png: Rock lobster drops Uncut ruby with rarity 1/2,048 in quantity 1Uncut ruby11/2,048; 1/1,040[d 2]1,12960
Nature talisman.png: Rock lobster drops Nature talisman with rarity 1/5,461.33 in quantity 1Nature talisman11/5,461.33; 1/2,773.33[d 2]2442
Uncut diamond.png: Rock lobster drops Uncut diamond with rarity 1/8,192 in quantity 1Uncut diamond11/8,192; 1/4,160[d 2]2,923120
Loop half of key.png: Rock lobster drops Loop half of key with rarity 1/16,384 in quantity 1Loop half of key11/16,384; 1/8,320[d 2]11,44960
Tooth half of key.png: Rock lobster drops Tooth half of key with rarity 1/16,384 in quantity 1Tooth half of key11/16,384; 1/8,320[d 2]9,56660
Rune javelin.png: Rock lobster drops Rune javelin with rarity 1/16,384 in quantity 5Rune javelin51/16,384; 1/8,320[d 2]8451,200
Rune spear.png: Rock lobster drops Rune spear with rarity 1/262,144 in quantity 1Rune spear11/262,144; 1/15,600[d 2][d 3]11,87712,480
Shield left half.png: Rock lobster drops Shield left half with rarity 1/524,288 in quantity 1Shield left half11/524,288; 1/31,200[d 2][d 3]64,74266,000
Dragon spear.png: Rock lobster drops Dragon spear with rarity 1/699,050.67 in quantity 1Dragon spear11/699,050.67; 1/41,600[d 2][d 3]37,53637,440
  1. ^ The "nothing" drop is removed while wearing a ring of wealth.
  2. ^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.
  3. ^ 3.0 3.1 3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

Tertiary[edit | edit source]

Item Quantity Rarity Price High Alch
Clue scroll (medium).png: Rock lobster drops Clue scroll (medium) with rarity 1/128 in quantity 1Clue scroll (medium)11/128[d 1][1]Not sold12
  1. ^ The medium clue scroll drop rate increases to 1/121 with the completion of the medium combat achievements.

Trivia[edit | edit source]

  • The examine text is a reference to the B-52's song "Rock Lobster".

References[edit | edit source]

  1. ^ Jagex. Mod Tide's Twitter account. 24 May 2019. (Archived from the original on 24 May 2019.) Mod Tide: "I know its been a while since the clue expansion but here is the information on clue scroll drop rates and loot chances! If anything changes I will keep you posted."