Killing cave slime
Profit Cave slime
15,500 per hour
Skill requirements

17 Slayer-icon
50+ Multicombat recommended

Item requirements

Light source (Oil lantern or Bullseye lantern recommended)
Some food recommended for lower levels
Spiny or Slayer helmet (optional but wards off Wall beasts)

Quest requirements Inputs

Lost Tribe recommended

2 x Antipoison (846)

Other requirements Outputs


1,260 × Swamp tar (16,380)

Location Experience gained

36,000 Multicombat experience
12,000 Hitpoints-icon experience

Lumbridge Swamp Caves map

Cave slime in the Lumbridge Swamp Caves always drop between one and six swamp tar, which is currently worth 13 coins each. The easiest way to get to the dungeon is by teleporting to Lumbridge, going into the castle basement with a light source, and enter the swamp caves by the entrance next to Mistag. Head south and west, avoiding wall beasts, until you reach an area with three cave slime. Consult the map to the right for more details. Be careful of gas in the caves, as if you have an open light source (i.e. torch, oil lamp, etc.) the gas will explode dealing high damage and extinguishing your light source. A bullseye lantern or similar is recommended.

Attack the three cave slimes in the area. At a high enough combat level, you can more quickly kill them with Melee. They are level 23 and only have 25 Hitpoints, so oftentimes a single hit is enough to kill them. When all three are dead, pick up the swamp tar and wait for them to respawn (it takes about ten seconds from the first one being killed). The cave slimes do use poison. The cave slime drop an average of three swamp tar per kill, and you can easily kill 360 of them per hour at a medium combat level. Sell the swamp tar on the Grand Exchange when finished.

Due to constantly changing prices on the Grand Exchange, some information in this article may or may not be current.
It is strongly recommended to check the live prices on the Grand Exchange before making large investments in any method.

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