This article is about the slayer monster. For the superior variant, see
Giant rockslug.
SMW Subobject for SwampMagic defence bonus: 0Examine: The slime of evil.Immune to venom: Not immuneAttack bonus: 0Magic Damage bonus: 0Ranged Strength bonus: 0Stab defence bonus: 0Uses skill: SlayerDefence level: 27Uses infobox: MonsterNPC ID: 422Crush defence bonus: 0Release date: 14 March 2005Version anchor: SwampRanged level: 1Attack level: 22Combat level: 29Is variant of: RockslugMagic attack bonus: 0Slayer experience: 27Attack style: CrushImmune to poison: Not immuneSize: 1Slayer level: 20Range defence bonus: 0Hitpoints: 27Slayer category: RockslugsMax hit: 4Assigned by: mazchna, vannaka, chaeldarAttack speed: 4Image: File:Rockslug (Swamp).pngRange attack bonus: 0Magic level: 1Name: RockslugStrength bonus: 0Slash defence bonus: 0Strength level: 27Experience bonus: 0Is members only: true
SMW Subobject for CaveMagic defence bonus: 0Examine: The slime of evil.Immune to venom: Not immuneAttack bonus: 0Magic Damage bonus: 0Ranged Strength bonus: 0Stab defence bonus: 0Uses skill: SlayerDefence level: 27Uses infobox: MonsterNPC ID: 421Crush defence bonus: 0Release date: 26 January 2005Version anchor: CaveRanged level: 1Attack level: 22Combat level: 29Is variant of: RockslugMagic attack bonus: 0Slayer experience: 27Attack style: CrushImmune to poison: Not immuneSize: 1Slayer level: 20Range defence bonus: 0Hitpoints: 27Slayer category: RockslugsMax hit: 4Assigned by: mazchna, vannaka, chaeldarAttack speed: 4Image: File:Rockslug.pngRange attack bonus: 0Magic level: 1Name: RockslugStrength bonus: 0Slash defence bonus: 0Strength level: 27Experience bonus: 0Is members only: true

Rockslugs are Slayer monsters that require level 20 Slayer to kill. In order to kill a rockslug, a bag of salt must be used when it has 4 or less Hitpoints. If a bag of salt is used on a rockslug with 5 or more Hitpoints, the bag will be consumed but have no effect. If a rockslug's health is reduced to 1 but a bag of salt is not used on it, the rockslug will stop retaliating and wander off. Players can buy the "Slug salter" perk from a Slayer Master for 80 Slayer points, which will automatically salt the rockslug when it falls below 5 Hitpoints, provided that the player has a bag of salt in their inventory. Alternatively, a brine sabre can be used to kill them without the need for bags of salt.
They are rarely killed due to their mediocre drops, which consists of low level ores and seeds. They may rarely drop the mystic gloves (light).
Drop rates estimated based on 475,942 samples from the Drop Rate Project, unless otherwise cited.
The average Rockslug kill is worth 123.52.
There is a 9/128 chance of rolling the general seed drop table.
There is a 6/128 chance of rolling the gem drop table.
Item |
Quantity |
Rarity |
Price |
High Alch |
 | Nothing | N/A | 1/42.74; Never[d 1] | N/A | N/A |
 | Uncut sapphire | 1 | 1/85.33; 1/43.33[d 2] | 296 | 15 |
 | Uncut emerald | 1 | 1/170.67; 1/86.67[d 2] | 570 | 30 |
 | Uncut ruby | 1 | 1/341.33; 1/173.33[d 2] | 1,089 | 60 |
 | Chaos talisman | 1 | 1/910.22; 1/462.22[d 2][d 3] | 104 | 2 |
 | Nature talisman | 1 | 1/910.22; 1/462.22[d 2][d 3] | 168 | 2 |
 | Uncut diamond | 1 | 1/1,365.33; 1/693.33[d 2] | 2,712 | 120 |
 | Loop half of key | 1 | 1/2,730.67; 1/1,386.67[d 2] | 10,561 | 60 |
 | Tooth half of key | 1 | 1/2,730.67; 1/1,386.67[d 2] | 10,771 | 60 |
 | Rune javelin | 5 | 1/2,730.67; 1/1,386.67[d 2] | 800 | 1,200 |
 | Rune spear | 1 | 1/43,690.67; 1/2,600[d 2][d 4] | 12,023 | 12,480 |
 | Shield left half | 1 | 1/87,381.33; 1/5,200[d 2][d 4] | 65,560 | 66,000 |
 | Dragon spear | 1 | 1/116,508.44; 1/6,933.33[d 2][d 4] | 44,488 | 37,440 |