Brine rat

Brine rat
Released	10 April 2007 (Update)
Members	Yes
Combat level	70
Size	1x1
Examine	Eww, a bald rat!
Combat info
Attribute	Rat
XP bonus	+0%
Max hit	9
Aggressive	No
Poisonous	No
Attack style	Stab
Attack speed	4 ticks (2.4 seconds)
Respawn time	30 ticks (18 seconds)
Slayer info
Slayer level	47
Slayer XP	50 xp
Category	Brine Rats, Rats
Assigned by	File:Konar chathead.png
Combat stats
Aggressive stats
Melee defence
Magic defence
+0	No elemental weakness
Ranged defence
Immunities
Poison	Not immune
Venom	Not immune
Cannons	Not immune
Thralls	Not immune
	Open in DPS calculator
Advanced data
Monster ID	4501

Brine rats are Slayer monsters that can be found in the Brine Rat Cavern near Rellekka. They are notable for being the only monsters to drop the brine sabre. A Slayer level of 47 is required to fight them.

They are only assigned to players who have progressed in Olaf's Quest to the point where they need to enter the Brine Rat Cavern (requiring a spade to enter). Additionally, they can be killed as an alternative for a rat Slayer task provided the player has the appropriate Slayer level to do so.

Killing a brine rat is a requirement for completing the medium task set in the Fremennik Diary.

Locations

Location

Levels

Members

Spawns

Map

League region

Brine Rat Cavern (DKS)

70

7

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Fremennik✓

Tips

Brine rats have relatively low Defence, but fairly high Strength and Attack. As such, it is recommended to bring food if players do not have high (~70) Defence.

Alternatively, players can bring Bones to peaches (tablet) to convert their bones drops to peaches, which heal 8 hitpoints each. Bringing logs and a tinderbox to cook and eat the Raw rat meat and other raw fish that they drop is also an option, though this is significantly more time consuming and less efficient than using peaches.

Location of the brine rat safespot in the south-eastern corner.

There are two safespots, one being the black bones to the south-east, and the other in the north-west corner of the cave. If the brine rats are in the north half of the cave, you are able to safespot them from behind the bones in the corner.

Brine rats frequently drop raw swordfish and occasionally drop unnoted raw sharks in addition to raw rat meat, so bringing a tinderbox and a couple of logs may be advisable. Alternatively, Olaf, outside the caverns, has a permanent fire located beside him, so players can collect the unnoted raw fish/rat meat drops and cook them on his fire if they are willing to exit and re-enter the caverns multiple times. A fish barrel can be used to store the unnoted raw fish drops.

Rat bone weapons can be used to kill brine rats, and have an added 10 hitpoints of damage added to the player's max hit, making these weapons incredibly effective compared to other weapons with similar stats. Even compared to the highest tier weapons, rat bone weapons might still be more effective depending on your stats and boosts, as the difference in max hit based on other weapon's strength bonuses might not be enough to reach 10 hitpoints of extra damage towards their max hit.

Money making

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Drops

Drop rates estimated based on 128,958 samples from the Drop Rate Project, unless otherwise cited.

100%

	Item	Quantity	Rarity	Price	High Alch
	Bones	1	Always	113	0
	Raw rat meat	1	Always	102	0

Weapons

	Item	Quantity	Rarity	Price	High Alch
	Brine sabre	1	1/512^[1]	271,734	15,600

Runes

Item	Quantity	Rarity	Price	High Alch
Death rune	7	18/128	1,120	756
Air rune	18	2/128	90	36
Earth rune	10	6/128	50	20
Earth rune	18	2/128	90	36
Earth rune	36	4/128	180	72
Water rune	10	3/128	50	20
Water rune	18	2/128	90	36
Blood rune	4	2/128	856	960

Materials

Item	Quantity	Rarity	Price	High Alch
Raw lobster	10 (noted)	6/128	740	420
Raw shark	3 (noted)	6/128	1,869	306
Raw rat meat	18 (noted)	2/128	1,836	0
Raw pike	18 (noted)	2/128	3,492	216
Raw shark	8 (noted)	2/128	4,984	816
Raw swordfish	9	2/128	882	432
Raw shark	1	1/128	623	102

Coins

Item	Quantity	Rarity	Price	High Alch
Coins	1	21/128	1	1
Coins	2	16/128	2	2
Coins	4	9/128	4	4
Coins	29	3/128	29	29

Other

	Item	Quantity	Rarity	Price	High Alch
	Nothing	N/A	16/128	N/A	N/A
	Water talisman	1	3/128	139	2

Tertiary

	Item	Quantity	Rarity	Price	High Alch
	Clue scroll (medium)	1	1/128^{[d 1]}^[2]	Not sold	12
Brimstone key.png: Brine rat drops Brimstone key with rarity 1/224 in quantity 1	Brimstone key	1	1/224^{[d 2]}	Not sold	N/A

^ The medium clue scroll drop rate increases to 1/121 after unlocking the medium Combat Achievements rewards tier.
^ Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.

References

^ Envision. "Drop Rates V2." 14 July 2014. Old School RuneScape Forums.
^ Jagex. Mod Ash's Twitter account. 28 November 2018. Archived from the original on 26 May 2020. Mod Ash: "1/128. I actually sent that info over for use in the newspost, but I guess it wasn't newsworthy enough."

[3] The medium clue scroll drop rate increases to 1/121 after unlocking the medium Combat Achievements rewards tier.

[4] Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.

[Drop_Rates_V2-1] Envision. "Drop Rates V2." 14 July 2014. Old School RuneScape Forums.

[2] Jagex. Mod Ash's Twitter account. 28 November 2018. Archived from the original on 26 May 2020. Mod Ash: "1/128. I actually sent that info over for use in the newspost, but I guess it wasn't newsworthy enough."

[1]

[d 1]

[2]

[d 2]

v • t • e Brine Rat Cavern
Monsters	Brine rat Giant bat Rock Crab Skeleton fremennik Ulfric
Scenery	Camping gear Camping fire
Related	Key Olaf's Quest Rotten barrel

Brine rat

Contents

Locations

Tips

Money making

Drops