This article is about level 167 Grotworms. For other types of Grotworms, see Grotworm (disambiguation).
This article has a strategy guide here.
|Release date||22 May 2012 (Update)|
|XP per kill||Unknown edit|
|Assigned by||Turael or Spria, Mazchna or Achtryn, Chaeldar, Sumona, Vannaka, Duradel or Lapalok, Kuradal|
|Always drops||Big bones|
|Examine text||The final stage of a grotworm before its metamorphosis.|
Mature grotworms can be found on the bottom level of the Grotworm Lair. They have slow, but extremely accurate, magic and melee attacks. However, magic attacks are only used on players outside of melee range, similar to monsters such as metal dragons and cockroach soldiers. It is possible to safespot them using the pillars if you stand far enough back from them. As they are weak to crush and stab, the chaotic maul, goliath gloves, and chaotic rapier are good choices. Protect from Melee/Deflect Melee would work best for up-close fighting. An excellent alternative to prayer is to use Guthan's set to heal. Lower-level players are recommended to bring high healing food such as monkfish or sharks if Guthan's healing effect fails to occur. 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.
Some players may find it useful to bring runes to cast High Level Alchemy on the items dropped by the grotworms, as Adamant armour and weapons are common drops.
Item Quantity Rarity GE Market Price Big bones 1 Always 449
- Represents 90% confidence range, based on a sample of 32,043 kills.
1 charm is dropped at a time.
- Please add to the log (only if 50 or more creatures killed).
Item Quantity Rarity GE Market Price Rune dagger 1 Common 4,357 Rune mace 1 Common 8,095 Rune longsword 1 Common 18,488 Adamant scimitar 1 Rare 1,355 Adamant battleaxe 1 Very rare 2,253 Adamant 2h sword 1 Very rare 3,404
Item Quantity Rarity GE Market Price Rune helm 1 Common 10,893 Adamant chainbody 1 Common 2,366 Adamant sq shield 1 Common 1,797 Royal cape 1 Rare 167
Item Quantity Rarity GE Market Price Grimy guam 1 Uncommon 539 Grimy harralander 1 Uncommon 652 Grimy tarromin 1 Uncommon 249 Grimy ranarr 1 Uncommon 2,160 Grimy irit 1 Uncommon 1,743 Grimy avantoe 1 Uncommon 4,128 Grimy kwuarm 1 Uncommon 2,471 Grimy dwarf weed 1 Uncommon 8,195 Grimy marrentill 1 Rare 44 Grimy cadantine 1 Rare 2,507 Grimy lantadyme 1 Rare 7,850
Item Quantity Rarity GE Market Price Cactus seed 1 Uncommon 26 Poison ivy seed 1 Uncommon 54 Avantoe seed 1–2 Uncommon 1,890–3,780 Dwarf weed seed 1 Uncommon 38,269 Fellstalk seed 2 Uncommon 932 Cadantine seed 1 Uncommon 2,354 Irit seed 1 Uncommon 74 Belladonna seed 1 Uncommon 33 Toadflax seed 1 Uncommon 702 Kwuarm seed 1 Rare 363 Lantadyme seed 1 Very rare 34,922
Item Quantity Rarity GE Market Price Royal dragonhide 1 Rare 5,107 Flax 50–100 (noted) Uncommon 1,100–2,200 Runite ore 1 Uncommon 10,419 Adamantite ore 3 (noted) Uncommon 4,554
Item Quantity Rarity GE Market Price Saradomin brew (2) 1 Common 305
Item Quantity Rarity GE Market Price Coins 2,000, 3,000, 5,000, 7,000 Common Not sold Shark 2 Common 1,698 Anagogic ort 20 Uncommon Not sold Blood rune 10,50 Uncommon 1,630–8,150 Rune bar 1 Uncommon 13,002 Law rune 45 Rare 8,100 Long bone 1 Rare Not sold Curved bone 1 Rare Not sold Spin ticket 1 Rare Not sold Clue scroll (hard) 1 Rare Not sold Court summons 1 Very rare Not sold Starved ancient effigy 1 Very rare Not sold
Rare drop table drops
|Show/hide rare drop table|
- 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.
- When attacking a Mature Grotworm with Melee, the player's head is completely covered by the Grotworm's mouth.
- Due to excessive botting, an update on 7 August 2012 removed several rune armor drops from the drop table of Mature Grotworms, replacing them with their adamant counterparts.