Rock slug

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Rock slug
Release																				26 January 2005 (Update)
Members																				Yes
Options																				Attack, Salt, Examine
Race																				? (edit)
Examine																				The slime of evil.
Combat info
Combat level																				28
Life points																				4,050
Aggressive
Poisonous
Combat experience
XP																				202.5
XP																				33.6
XP																				66.8
XP																				18 (two-handed) 9 (one-handed and armour)
Slayer info
Level																				20
Assignment																				Rock slugs
Master																				Mazchna: 50–90
Offensive
Max hit
375												0												0												0												0
Style																														Rate
																														5 ticks (3.0s)
Combat levels
15															1															1															1
Accuracy
157															0															0															0
Defensive
Armour																				Weakness															Susceptible
381										25
Base hit chance
90															55															45															65
Immunities
Not immune															Not immune															Not immune															Not immune
Advanced data
NPC ID															1631, 1632
Links															bestiary • MRND

A rock slug is a Slayer monster that requires level 20 Slayer to kill. A bag of salt or a salt shaker is required to finish it off. They mostly drop low level stone spirits, and are therefore unpopular.

Locations

Location	Levels	Members	Requirements	Spawns	Map
Dorgesh-Kaan South Dungeon	28		None	4	Show map
Fremennik Slayer Dungeon	28		None	7	Show map
Lumbridge Swamp Caves	28		None	5	Show map

Strengths and weaknesses

Rock slugs can only be successfully killed with a bag of salt (which is used up) or salt shaker when their life points drop to 1-607 (15% of their maximum life points). Fortunately, bags of salt stack and are plentiful in the Slayer Equipment shop and in the Grand Exchange. If the bag of salt is accidentally used before the rock slug is reduced to 607 or less life points, it will still be used up but have no effect. It would be wise to bring a few extra because of this. If a rock slug's health is reduced to 1 but a bag of salt is not used on it, the rock slug is "frozen" in place, unable to move or retaliate, even after it regains some life points.

Drops

Drop rates estimated based on 8,035 samples from the Drop Log Project, unless otherwise cited.

The average Rock slug kill is worth 3,388 coins.

Armour

	Item	Quantity	Rarity	GE price	High Alch
	Light mystic gloves	1	1/512	249,045	3,000

Seeds

There is a 20/128 chance of rolling the allotment seed drop table.

	Item	Quantity	Rarity	GE price	High Alch
	Potato seed	1–4	1/12.3	370–1,480	4–16
	Onion seed	1–3	1/26.7	354–1,062	6–18
	Cabbage seed	1–3	1/53.3	423–1,269	15–45
	Tomato seed	1–2	1/106.7	319–638	2–4
	Sweetcorn seed	1–2	1/213.3	319–638	4–8
	Evil turnip seed	1–4	1/426.7	180–720	12–48
	Strawberry seed	1	1/640	444	10
	Watermelon seed	1	1/1,280	423	33

Spirits

	Item	Quantity	Rarity	GE price	High Alch
	Copper stone spirit	1	11/128	439	N/A
	Iron stone spirit	1	17/128	8	N/A
	Willow wood spirit	5	6/128	48,595	N/A

Salvage

	Item	Quantity	Rarity	GE price	High Alch
	Small bladed steel salvage	1	8/128	2,468	480
	Medium plated steel salvage	1	8/128	2,241	720

Other

	Item	Quantity	Rarity	GE price	High Alch
	Earth rune	10	17/128	300	30
	Coins	102–605	12/128	102–605	102–605
	Bag of salt	10	6/128	90	60
	Grimy guam	1	6/128	255	18

Gem drop table

There is a 5/128 chance of rolling the gem drop table.

Gem and rare drop table

Item Quantity Rarity GE price High Alch Coins (m) 250–500 1/52.01 250–500 250–500 Coins 50 1/46.15 50 50 Uncut sapphire 1 1/105.7 756 15 Uncut emerald 1 1/204.8 964 30 Uncut ruby 1 1/409.6 523 60 Uncut diamond 1 1/1,638.4 965 120 Rune javelin (m) 5 1/819.2 905 1,870 Uncut dragonstone (m) 1 1/2,912.71–1/2,839.89 5,600 600 Tooth half of a key (m) 1 1/2,995.93–1/2,937.82 8,957 1 Loop half of a key (m) 1 1/2,995.93–1/2,937.82 8,951 1 Huge plated rune salvage 1 (noted) 1/41,943.04–1/34,078.72 37,687 40,000 Magic logs (m) 65–85 (noted) 1/52,428.8–1/42,598.4 51,740–67,660 12,480–16,320 Rune arrowheads 110–140 1/52,428.8–1/42,598.4 17,270–21,980 660–840 Soft clay (m) 35–45 (noted) 1/52,428.8–1/42,598.4 75,355–96,885 35–45 Small bladed orikalkum salvage (m) 1 (noted) 1/104,857.6–1/85,196.8 46,674 50,000 Catalytic anima stone (m) 35–45 1/104,857.6–1/85,196.8 36,750–47,250 6,300–8,100 Teak plank (m) 45–55 (noted) 1/104,857.6–1/85,196.8 10,125–12,375 13,500–16,500 Dragon bones (m) 35–45 (noted) 1/104,857.6–1/85,196.8 65,380–84,060 35–45 Dragon helm (m) 1 1/93,466.38–1/75,941.44 57,446 60,000 Dragon longsword (m) 1 1/337,230.47–1/273,999.76 57,719 60,000 Off-hand dragon longsword (m) 1 1/337,230.47–1/273,999.76 57,371 60,000 Molten glass (m) 45–55 (noted) 1/52,428.8; 0 16,200–19,800 45–55 Runite stone spirit (m) 27–33 1/52,428.8; 1/49,152; 0 59,940–73,260 N/A Raw lobster (m) 135–165 (noted) 1/52,428.8–1/45,875.2; 0 31,860–38,940 22,950–28,050 Shield left half (m) 1 1/1,677,721.6–1/1,363,148.8 69,825 66,000 Dragon spear (m) 1 1/958,698.06–1/778,942.17 34,052 37,440 Huge plated rune salvage 18–22 (noted) 1/2,236,962.13–1/1,817,531.73 678,366–829,114 720,000–880,000 Yew logs 675–825 (noted) 1/1,677,721.6–1/1,363,148.8 461,025–563,475 64,800–79,200 Super restore (4) (m) 45–55 (noted) 1/1,118,481.07–1/908,765.87 129,870–158,730 8,100–9,900 Prayer potion (4) 45–55 (noted) 1/1,118,481.07–1/908,765.87 324,180–396,220 5,130–6,270 Raw rocktail (m) 180–220 (noted) 1/1,342,177.28–1/1,090,519.04 158,400–193,600 64,800–79,200 Mahogany plank (m) 270–330 (noted) 1/2,236,962.13–1/1,817,531.73 236,790–289,410 243,000–297,000 Magic seed (m) 3–5 1/3,355,443.2–1/2,726,297.6 73,638–122,730 759–1,265 Water talisman 68–82 (noted) 1/4,194,304–1/3,407,872 47,328–57,072 136–164 Battlestaff (m) 180–220 (noted) 1/4,194,304–1/3,407,872 709,560–867,240 756,000–924,000 Hardened dragon bones (m) 45–55 (noted) 1/3,355,443.2–1/2,726,297.6 558,270–682,330 45–55 Onyx bolt tips (m) 135–165 1/4,194,304–1/3,407,872 878,040–1,073,160 729,000–891,000 Ciku seed (m) 1 1/4,194,304–1/3,407,872 33,460 300 Golden dragonfruit seed (m) 13–17 1/2,236,962.13–1/1,817,531.73 19,747–25,823 3,900–5,100 Uncut diamond 45–55 (noted) 1/1,342,177.28–1/1,090,519.04 43,425–53,075 5,400–6,600 Uncut dragonstone (m) 45–55 (noted) 1/3,355,443.2–1/2,726,297.6 252,000–308,000 27,000–33,000 Soul rune (m) 450–550 1/4,194,304–1/3,407,872 304,200–371,800 36,900–45,100 Light animica stone spirit (m) 270–330 1/1,677,721.6–1/1,363,148.8 143,100–174,900 N/A Dark animica stone spirit (m) 270–330 1/1,677,721.6–1/1,363,148.8 142,290–173,910 N/A Primal stone spirit (m) 90–150 1/1,597,830.1–1/1,298,236.95 1,538,550–2,564,250 N/A Crystal key (m) 9–11 (noted) 1/559,240.53–1/454,382.93 148,212–181,148 9–11 White berries (m) 67–85 (noted) 1/2,236,962.13–1/1,817,531.73 129,042–163,710 402–510 Ectoplasm (m) 270–330 1/1,677,721.6–1/1,363,148.8 490,320–599,280 1,620–1,980 Medium spiky orikalkum salvage (m) 3–5 (noted) 1/1,677,721.6–1/1,363,148.8 216,762–361,270 225,000–375,000 Large blunt necronium salvage (m) 2 (noted) 1/2,236,962.13–1/1,817,531.73 644,054 650,000 Wine of Saradomin (m) 13–17 (noted) 1/4,194,304–1/3,407,872 596,869–780,521 13–17 Aura refresh (m) 1 1/1,342,177.28–1/1,090,519.04 Not sold N/A Distraction & Diversion reset token (daily) (m) 1 1/3,355,443.2–1/2,726,297.6 Not sold N/A Distraction & Diversion reset token (weekly) (m) 1 1/3,355,443.2–1/2,726,297.6 Not sold N/A Distraction & Diversion reset token (monthly) (m) 1 1/3,355,443.2–1/2,726,297.6 Not sold N/A Vecna skull (m) 1 1/3,407,872; 0 474,190 6,000 Cheese+tom batta (m) 1 ~1/33,554,432–1/29,360,128; 0 728 1 Blurberry Special (m) 1 ~1/30,292,195.56; 0 46,021 18 Hazelmere's signet ring (m) 1 ~1/272,629,760; 0 6,344,705,771 300,000

Tertiary

	Item	Quantity	Rarity	GE price	High Alch
	Court summons	1	Rare	1	1

Universal drops

Universal drops are dropped by nearly every monster and skilling action outside of Daemonheim.

These items are dropped alongside main drops.

	Item	Quantity	Rarity	GE price	High Alch
	Key token	1	Rare	Not sold	N/A
	Mimic kill token (m)	1	1/10,000	61,093	N/A

Achievements

• The Start of Something New ( 0) – Obtained a collection of unique drops from Slayer monsters located within the Fremennik Province.
  • Light mystic gloves drop

Graphical updates

• 

  Rockslug after 26 January 2005 (update)

• 

  Rockslug after 5 June 2008 (update)

• 

  Rock slug after 23 June 2014 (update)

Update history

This information has been compiled as part of the update history project. Some updates may not be included – see here for how to help out!

• patch 25 November 2024 (Update):
  • Replaced the willow logs drop with willow wood spirits.

• patch 25 March 2024 (Update):
  • Ushabti containing a rock slug soul now doesn't contain any typos in its tooltip.
    • "Rockslug" was changed to "Rock slug".

• patch 12 February 2024 (Update):
  • Rebalanced several low level monsters that were harder to kill than intended

• patch 5 August 2019 (Update):
  • The name of the monster was changed from "rockslug" to "rock slug".

• ninja 23 June 2014 (Update):
  • The graphics and animations for the following NPCs have been revised:
    • Rock slugs

• update 26 January 2005 (Update):
  • Added to game.