This article is about level 28 grotworms. For other types of grotworms, see Grotworm (disambiguation).
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Young grotworms are creatures found in the top level of the Grotworm Lair north-east of Rimmington near the White Knight Camp. They are the only monsters that drop coral bolts.

They have a very small range of aggression and will only attack players if they come right next to them, similar to living rock creatures. They attack with magic and melee, however, they only use magic when the player is out of melee range, and only use melee when the player is next to them.


100% drop

Item Quantity Rarity GE price


No charmGold charmGreen charmCrimson charmBlue charm
Represents a 90% confidence range based on a sample of 10,643 kills.
1 charm is dropped at a time.
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Main drops

Item Quantity Rarity GE price
Coral bolts 5Coral bolts20CommonNot sold
Bronze spearBronze spear1Common6,859
Royal capeRoyal cape1Common689
Nature runeNature rune1Common414
Water runeWater rune8Uncommon160
Mind runeMind rune8Uncommon152
Earth runeEarth rune8Uncommon152
Strength potion (1)Strength potion (1)1Rare300
Attack potion (1)Attack potion (1)1Rare111
Silver oreSilver ore1Uncommon102
Iron oreIron ore1Uncommon383
Coins 100Coins100Common100

Tertiary drops

Item Quantity Rarity GE price
Sealed clue scroll (easy)Sealed clue scroll (easy)1RareNot sold
Spirit sapphireSpirit sapphire1RareNot sold
Spirit emeraldSpirit emerald1RareNot sold
Spirit rubySpirit ruby1RareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold

Universal drops

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 rare9,282


  • Young grotworms used to be aggressive to all players regardless of combat level, similar to monsters in the Wilderness. This was changed with the Evolution of Combat.
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