Wikia

RuneScape Wiki

Mature grotworm

33,705pages on
this wiki
Discuss59
This article is about level 98 Grotworms. For other types of Grotworms, see Grotworm (disambiguation).
Coins 10000
This article has a money making guide here.
Please add tips to the subpage, rather than the article below.
Invasion plans
This article has a strategy guide here.
All information on mechanics and strategy will be on this page.
[FAQ] • [doc]

Mature grotworms are monsters that can be found on the bottom level of the Grotworm Lair. They have slow, but accurate and hard-hitting magic and melee attacks. However, magic attacks are only used on players outside of melee range, similar to monsters such as metal dragons. It is possible to safespot them using the pillars if you stand far enough back from them. Lower-level players are recommended to bring high healing food such as monkfish or sharks. Ranged/magic would require Protect from Magic/Deflect Magic if using safe spots. The magic attack has a short range, so flashing your prayer when out of its range can help conserve prayer points. Despite their ranged weakness, a player with 70+ melee stats should have little trouble killing them efficiently, even without the use of prayer.

Using high level ranged gear such as Armadyl and using a bunyip will reduce the need for prayer potions/flasks. The occasional Shark drops will reduce the need for food, and ranged gear will mean little damage from the mature grotworms' magic attack while ranging.

If a player tries to set up a cannon within the Grotworm Lair, they will receive a message saying: "The damp air would prevent your cannon operating." This does not prevent hand cannons from working, however.

Some players may find it useful to bring runes to cast High Level Alchemy on the items dropped by the grotworms, as adamant and rune equipment are common drops. The profit of using this spell on some of these items is greater than banking and selling them. Alternatively, players could disassemble the drops for Invention experience and materials.

DropsEdit

100% dropEdit

Item Quantity Rarity GE price
Big bonesBig bones1Always339

CharmsEdit

No charmGold charmGreen charmCrimson charmBlue charm
87–88%3%1–2%8%0.4–0.7%
Represents a 90% confidence range.
Based on a sample of 10,804 kills.
1 charm is dropped at a time.
Add data to the log
(Requires JavaScript to be enabled)

Weapons and armourEdit

Item Quantity Rarity GE price
Adamant chainbodyAdamant chainbody1Common2,393
Adamant sq shieldAdamant sq shield1Common3,416
Rune daggerRune dagger1Common4,241
Rune helmRune helm1Common10,479
Rune maceRune mace1Common7,782
Rune longswordRune longsword1Uncommon18,160
Royal capeRoyal cape1Rare490

MaterialsEdit

Item Quantity Rarity GE price
Grimy guamGrimy guam1Uncommon156
Grimy marrentillGrimy marrentill1Uncommon150
Grimy tarrominGrimy tarromin1Uncommon38
Grimy harralanderGrimy harralander1Uncommon101
Grimy ranarrGrimy ranarr1Rare2,350
Grimy iritGrimy irit1Rare2,019
Grimy avantoeGrimy avantoe1Rare2,487
Grimy kwuarmGrimy kwuarm1Rare4,344
Grimy cadantineGrimy cadantine1Very rare4,076
Grimy lantadymeGrimy lantadyme1Very rare3,175
Grimy dwarf weedGrimy dwarf weed1Very rare2,854
Fellstalk seed 5Fellstalk seed2Common832
Belladonna seed 5Belladonna seed1Rare565
Cactus seed 5Cactus seed1Rare212
Poison ivy seed 5Poison ivy seed1Rare41
Toadflax seed 5Toadflax seed1Uncommon398
Irit seed 5Irit seed1Rare148
Avantoe seed 5Avantoe seed1Rare344
Kwuarm seed 5Kwuarm seed1Rare3,679
Snapdragon seed 5Snapdragon seed1Very rare394
Cadantine seed 5Cadantine seed1Very rare3,001
Lantadyme seed 5Lantadyme seed1Very rare1,313
Dwarf weed seed 5Dwarf weed seed1Very rare1,339
Torstol seed 5Torstol seed1Very rare4,123
FlaxFlax50–100 (noted)Common800–1,600
Runite oreRunite ore1Common10,389
Adamantite oreAdamantite ore(noted)Common2,862
Royal dragonhideRoyal dragonhide1Uncommon4,687

OtherEdit

    
Item Quantity Rarity GE price
Coins 1000Coins5,000Common5,000
Saradomin brew (2)Saradomin brew (2)1Common4,648
SharkShark2Common1,910
Long boneLong bone1RareNot sold
Curved boneCurved bone1RareNot sold
Clue scroll (hard)Clue scroll (hard)1RareNot sold
Spirit sapphireSpirit sapphire1RareNot sold
Spirit emeraldSpirit emerald1RareNot sold
Spirit rubySpirit ruby1RareNot 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.
A ring of wealth or collector's insignia 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 sapphire1Common957
Uncut emeraldUncut emerald1Common1,681
Uncut rubyUncut ruby1Common2,932
Uncut diamondUncut diamond1Common3,775
Uncut diamondUncut diamond45–55 (noted)Rare169,875–207,625
Loop half of a keyLoop half of a key1Common15,400
Tooth half of a keyTooth half of a key1Common28,301
Uncut dragonstoneUncut dragonstone1Uncommon12,735
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare573,075–700,425
Dragon longswordDragon longsword1Common57,687
Dragon spearDragon spear1Rare35,744
BattlestaffBattlestaff180–220 (noted)Rare1,246,500–1,523,500
Rune javelinRune javelin5Rare1,205
Rune platebodyRune platebody1Uncommon37,707
Rune platebodyRune platebody15–25 (noted)Rare565,605–942,675
Shield left halfShield left half1Rare64,921
Dragon helmDragon helm1Uncommon58,674
Rune arrowheads 5Rune arrowheads113–137Common17,402–21,098
Onyx bolts 5Onyx bolts135–165Very rare1,084,455–1,325,445
Vecna skullVecna skull1Rare75,457
Chaos talismanChaos talisman1Rare1,100
Nature talismanNature talisman1Rare878
Water talismanWater talisman65–82 (noted)Rare425,425–536,690
Earth talismanEarth talisman65–82 (noted)Rare111,475–140,630
Fire talismanFire talisman25–35 (noted)Rare41,375–57,925
Raw lobsterRaw lobster135–165 (noted)Common14,310–17,490
Raw sharkRaw shark225–275 (noted)Uncommon198,225–242,275
Big bonesBig bones79–90 (noted)Uncommon26,781–30,510
Dragon bonesDragon bones180–220 (noted)Rare355,500–434,500
CoalCoal200–1,100 (noted)Uncommon45,600–250,800
Gold oreGold ore90–110 (noted)Common12,690–15,510
Adamantite oreAdamantite ore180–220 (noted)Uncommon171,720–209,880
Adamant barAdamant bar14–16 (noted)Common39,326–44,944
Adamant barAdamant bar135–165 (noted)Rare379,215–463,485
Runite oreRunite ore90–110 (noted)Rare935,010–1,142,790
Rune barRune bar(noted)Common40,746
Rune barRune bar45–55 (noted)Rare611,190–747,010
Grimy torstolGrimy torstol90–110 (noted)Uncommon364,140–445,060
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon257,580–314,820
Super restore (4)Super restore (4)45–55 (noted)Uncommon157,500–192,500
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon143,595–175,505
Lantadyme seed 5Lantadyme seed14–16Uncommon18,382–21,008
Dwarf weed seed 5Dwarf weed seed14–16Uncommon18,746–21,424
Magic seed 5Magic seed4Uncommon266,204
Palm tree seed 5Palm tree seed10Rare772,190
FlaxFlax450–550 (noted)Common7,200–8,800
Molten glassMolten glass45–55 (noted)Common10,485–12,815
Soft claySoft clay450–550 (noted)Uncommon171,000–209,000
Yew logsYew logs68–82Uncommon13,192–15,908
Yew logsYew logs675–825 (noted)Rare130,950–160,050
Teak plankTeak plank45–55 (noted)Uncommon25,200–30,800
Mahogany plankMahogany plank270–330 (noted)Rare523,530–639,870
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

TriviaEdit

  • When these creatures were first released, they did not drop items from the rare drop table, but did after the Queen Black Dragon update.
  • The word 'grotworm' means caveworm in Dutch.
  • Their examine text hints towards the possibility of the existence of a stronger grotworm based creature, although likely not an actual worm as "metamorphosis" implies, but none were released with them.
  • On 17 June 2013, these monsters received a massive power increase. Their life points more than tripled, their accuracy was increased greatly, and their damage output was made substantially higher. This considerably decreased the amount of botting and people in general coming to the grotworms for money. They were level 120 with 3000 life points before this update.
  • On the same 17 June 2013 update, the slayer experience rewarded increased from 73 to 360.5, to compensate for their increased strength.
  • Due to excessive botting, an update on 7 August 2012 removed several rune armour drops from the drop table of mature grotworms, replacing them with their adamant counterparts, making it less effective to earn money. The same update also removed royal bolts and super restore potions from their drop tables.
Facts about "Mature grotworm"RDF feed
All Combat level98 +
All Is members onlytrue
All Release date22 May 2012 +
Combat level98 +
Drop JSON{ "name": "Big bones", "quantity": [1,1], "rarity": "Always" }, { "name": "Adamant chainbody", "quantity": [1,1], "rarity": "Common" }, { "name": "Adamant sq shield", "quantity": [1,1], "rarity": "Common" }, { "name": "Rune dagger", "quantity": [1,1], "rarity": "Common" }, { "name": "Rune helm", "quantity": [1,1], "rarity": "Common" }, { "name": "Rune mace", "quantity": [1,1], "rarity": "Common" }, { "name": "Rune longsword", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Royal cape", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy guam", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy marrentill", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy tarromin", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy harralander", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy ranarr", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy irit", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy avantoe", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy kwuarm", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy cadantine", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Grimy lantadyme", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Grimy dwarf weed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Fellstalk seed", "quantity": [2,2], "rarity": "Common" }, { "name": "Belladonna seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Cactus seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Poison ivy seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Toadflax seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Irit seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Avantoe seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Kwuarm seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Snapdragon seed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Cadantine seed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Lantadyme seed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Dwarf weed seed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Torstol seed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Flax", "quantity": [50,100], "rarity": "Common" }, { "name": "Runite ore", "quantity": [1,1], "rarity": "Common" }, { "name": "Adamantite ore", "quantity": [3,3], "rarity": "Common" }, { "name": "Royal dragonhide", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Coins", "quantity": [5000,5000], "rarity": "Common" }, { "name": "Saradomin brew (2)", "quantity": [1,1], "rarity": "Common" }, { "name": "Shark", "quantity": [2,2], "rarity": "Common" }, { "name": "Long bone", "quantity": [1,1], "rarity": "Rare" }, { "name": "Curved bone", "quantity": [1,1], "rarity": "Rare" }, { "name": "Clue scroll (hard)", "quantity": [1,1], "rarity": "Rare" }, { "name": "Spirit sapphire", "quantity": [1,1], "rarity": "Rare" }, { "name": "Spirit emerald", "quantity": [1,1], "rarity": "Rare" }, { "name": "Spirit ruby", "quantity": [1,1], "rarity": "Rare" }, { "name": "Court summons", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Starved ancient effigy", "quantity": [1,1], "rarity": "Very rare" } and { "name": "Key token", "quantity": [1,1], "rarity": "Rare" }
Drops itemBig bones +, Adamant chainbody +, Adamant sq shield +, Rune dagger +, Rune helm +, Rune mace +, Rune longsword +, Royal cape +, Grimy guam +, Grimy marrentill +, Grimy tarromin +, Grimy harralander +, Grimy ranarr +, Grimy irit +, Grimy avantoe +, Grimy kwuarm +, Grimy cadantine +, Grimy lantadyme +, Grimy dwarf weed +, Fellstalk seed +, Belladonna seed +, Cactus seed +, Poison ivy seed +, Toadflax seed +, Irit seed +, Avantoe seed +, Kwuarm seed +, Snapdragon seed +, Cadantine seed +, Lantadyme seed +, Dwarf weed seed +, Torstol seed +, Flax +, Runite ore +, Adamantite ore +, Royal dragonhide +, Coins +, Saradomin brew (2) +, Shark +, Long bone +, Curved bone +, Clue scroll (hard) +, Spirit sapphire +, Spirit emerald +, Spirit ruby +, Court summons +, Starved ancient effigy + and Key token +
Drops item from RDTCoins +, Uncut sapphire +, Uncut emerald +, Uncut ruby +, Uncut diamond +, Loop half of a key +, Tooth half of a key +, Uncut dragonstone +, Dragon longsword +, Dragon spear +, Battlestaff +, Rune javelin +, Rune platebody +, Shield left half +, Dragon helm +, Rune arrowheads +, Onyx bolts +, Vecna skull +, Chaos talisman +, Nature talisman +, Water talisman +, Earth talisman +, Fire talisman +, Raw lobster +, Raw shark +, Big bones +, Dragon bones +, Coal +, Gold ore +, Adamantite ore +, Adamant bar +, Runite ore +, Rune bar +, Grimy torstol +, Grimy snapdragon +, Super restore (4) +, Prayer potion (4) +, Lantadyme seed +, Dwarf weed seed +, Magic seed +, Palm tree seed +, Flax +, Molten glass +, Soft clay +, Yew logs +, Teak plank +, Mahogany plank +, Brawling gloves (Melee) +, Brawling gloves (Magic) +, Brawling gloves (Ranged) +, Brawling gloves (Agility) +, Brawling gloves (Cooking) +, Brawling gloves (FM) +, Brawling gloves (Fishing) +, Brawling gloves (Hunter) +, Brawling gloves (Mining) +, Brawling gloves (Prayer) +, Brawling gloves (Smithing) +, Brawling gloves (Thieving) +, Brawling gloves (WC) +, Crystal triskelion fragment 1 +, Crystal triskelion fragment 2 + and Crystal triskelion fragment 3 +
Is members onlytrue
Release date22 May 2012 +

Around Wikia's network

Random Wiki