If you've recently received Rock Slugs as a Slayer task in OSRS, you might be wondering if it's even worth the effort. While these low-level Slayer monsters aren't particularly dangerous, they are known for one thing: being annoying. Between needing salt to finish them off and their less-than-stellar loot table, Rock Slugs are more of a chore than a OSRS gold making opportunity.

But don't worry—we're here to break down everything you need to know about this task so you can get it done quickly and efficiently, whether you're a new Ironman, a casual player, or just grinding Slayer points. In this comprehensive guide, we'll cover Rock Slugs' stats, best locations, gear suggestions, notable drops, and tips to make your trip less painful.

What Are Rock Slugs?

Rock Slugs are a Slayer monster that requires 20 Slayer to kill. They're usually assigned by Turael or Spria (and sometimes Mazchna, depending on your combat level). While they're not strong or threatening, they don't die normally, and that's where the annoyance begins.

Once a Rock Slug reaches 4 HP or less, you must use a Bag of Salt on it to kill it. If you forget or don't have salt, it will just stay alive with 1–4 HP, running around like a headless chicken.

Stats & Mechanics

Stat Value

Combat Level 29

Max Hit 4

Attack Style Crush

Aggressive No

Poisonous No

Weaknesses None specific

Slayer Requirement 20

Special Mechanic Must use Bag of Salt under 4 HP

They're weak against all combat styles and have no notable defenses, so whether you prefer melee, range, or magic, you can take them down easily.

Bag of Salt – The Key to the Task

You'll need to bring 1 Bag of Salt per Rock Slug you plan to kill. They cost 10 GP each and can be bought from Slayer Masters.

Pro Tip: If you plan to kill Rock Slugs often (or just want the task to be way less annoying), spend 80 Slayer reward points on the Slug Salter unlock. With this perk, your character will automatically apply salt when the slug is at low health, streamlining the whole process.

Brine Sabre Alternative

The Brine Sabre is a rare drop from Brine Rats and has a special trait: it works as an alternative to salt. If you kill a Rock Slug using the Brine Sabre, it automatically finishes the kill without needing a Bag of Salt. This is a fun little QoL upgrade if you happen to own one, especially for Ironmen who like passive utility.

Loot Table – Is It Worth It?

Let's be honest—Rock Slugs don't offer much in terms of profit. You're likely to get about 137 GP per kill on average, with only one notable drop.

Rare & Notable Drops

• Mystic Gloves (Light) – 1 in 512 – This is the big one. While not super valuable, it's rare and can be useful early on for mages or as a collector's item.

• Rune Drops – Earth and Chaos Runes with decent drop rates.

• Ore and Bar Drops – Tin, Copper, Iron, Coal, Bronze Bars, Iron Bars, and even Mythril Ore (1 in 128) can appear.

• Seed Table – Includes mostly low-value seeds. Even Strawberry Seeds are 1 in 623.

• Dwarven Stout & Hammer – Useful if you're an Ironman looking to stock up for quests or Smithing.

• Gems – You have a 6 in 128 chance to roll the Gem Drop Table (sapphires, emeralds, etc.).

• No Clue Scrolls – Sorry clue hunters, this one won't scratch that itch.

Ironman Tip: If you need a Mythril Ore or Dwarven Stout for a quest, Rock Slugs are a weirdly convenient source. Just don't expect it to be quick.

Best Locations to Kill Rock Slugs

1. Fremennik Slayer Dungeon (Best Overall)

Pros:

• Good amount of Rock Slugs

• Easy access with Fairy Ring (AJR), Slayer Ring, or House in Rellekka

• Closest bunch for quick kills

How to Get There:

• Fairy Ring AJR – Fastest option

• Slayer Ring Teleport

• Rellekka POH portal

• Camelot Teleport + Agility log shortcut (48 Agility)

Once inside, go past the Cave Crawlers, and you'll find the Rock Slugs in the southern section of the dungeon. Bring your salt and go to town.

2. Lumbridge Swamp Caves

Pros:

• Good for newer players

• Slightly more accessible if you don't have Fairy Rings unlocked

Cons:

• You'll need a rope if it's your first time

• Requires a light source

• Slightly more dangerous environment

How to Get There:

• Lumbridge Teleport, then run south and west into the swamp

• Fairy Ring DIS, then head north and southeast

• Amulet of Glory to Draynor and run southeast

Light Source Warning: Use a sealed light source like a Bullseye Lantern. Candles can explode due to gas pockets in the caves, especially near the Wall Beasts.

Avoiding Wall Beast Damage: Either wear a Spiny Helmet or toggle run energy and sprint past it to avoid the hit. Once you're past, head northeast, past Cave Crawlers and Bugs, to find the slugs.

3. Dorgesh-Kaan South Dungeon (Not Recommended)

Pros:

• Very close to Fairy Ring AJQ

• Can be a quick stop for a single kill

Cons:

• Only one Rock Slug spawns here

• Not ideal for a full Slayer task

This area is worth mentioning for convenience, but don't come here expecting to finish your task.

Inventory & Gear Setup

Since Rock Slugs are weak and low-level, your gear setup is flexible. Even an Ironman with scuffed armor will do just fine.

Recommended Inventory:

• Bags of Salt – One per kill

• Light Source – Enclosed (e.g. Bullseye Lantern)

• Teleport Out – (e.g. Lumbridge Teleport, Glory, House Tab)

• Food – Optional, but good for cave crawlers nearby

• Rope – Required for first-time entrance into Lumbridge Swamp

• Slayer Helm – If you have it, wear it for bonus accuracy/damage

Combat Style:

Choose whatever you want—melee, ranged, or magic. They have no real defense stats, so even a basic weapon will suffice. Just make sure your combat style matches your Slayer XP needs, especially if you're training a specific stat.

Final Thoughts

Rock Slugs may be one of the more annoying Slayer tasks in Old School RuneScape, but they're not difficult—they just have a bit of extra friction due to the salt mechanic. If you come prepared with enough salt, bring the right gear, and head to a good location like the Fremennik Slayer Dungeon, the task will be over before you know it.

Whether you're grinding for Slayer points, completing a low-level Ironman task, or just checking boxes on your Slayer journey, Rock Slugs are a minor inconvenience you can conquer with ease.

RSorder Team