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Fever spider

Monster
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Fever spider
Released31 October 2005 (Update)
MembersYes
Combat level49
Size2x2
ExamineA bunch of legs, eyes and teeth.
Combat info
XP bonus+0%
Max hit4
1–12 (without Slayer gloves)
AggressiveNo
PoisonousDisease (8)
Attack styleStab
Attack speed4 ticks (2.4 seconds)
Respawn time5 ticks (3 seconds)
Slayer info
Slayer level42
Slayer XP40 xp
CategoryFever Spiders
Assigned by
Combat stats
4060304011
Aggressive stats
Monster attack bonusMonster strength bonusMonster magic strength bonusMonster ranged strength bonus
+0+0+0+0+0+0
Melee defence
+20+15+10
Magic defence
Fire elemental weakness
+1525% weakness
Ranged defence
LightStandardHeavy
+15+15+15
Immunities
Poison0% resistance
Venom0% resistance
CannonsNot immune
ThrallsNot immune
Open in DPS calculator
Advanced data
Monster ID626
LinkMOID

Fever spiders are Slayer monsters that require a Slayer level of 42 to kill, found only on Braindeath Island, in the brewery basement. This indirectly means players must also have started the Rum Deal quest in order to access them. Players must wear slayer gloves while fighting them, or face being damaged for 12.5% of their Hitpoints level and becoming diseased. Fever spiders are considered to be a relatively fast task due to the large quantity of spiders and their low Defence.

Players only need to wear slayer gloves if they are being hit by fever spiders, so players using Ranged or Magic may make use of safespots in order to wear better offensive gloves such as Barrows gloves. A notable safespot is located in the south-west corner, where players can trap the spiders on the edges of crates; however, due to the two tile wide nature of the spiders, many suitable safespots exist. Players safespotting the spiders without wearing slayer gloves are advised to bring a Relicym's balm in case the player accidentally becomes diseased.

Locations

Location Levels Members Spawns Map League region
Braindeath Island49Members11Show mapMorytania Morytania✓

Money making

The following money making guide is available for Fever spider:

MethodHourly profitSkills
Killing fever spiders303,400
  • Attack 60+ , Strength 60+ , Magic 55 , Slayer 42

Drops

Drop rates are estimated based on 2,373,508 samples from the Drop Rate Project, unless otherwise cited.

The average Fever spider kill is worth 803.51.

100%

Item Quantity Rarity Price High Alch
Fever spider body.png: Fever spider drops Fever spider body with rarity Always in quantity 1Fever spider body1Always[d 1]Not sold0
  1. ^ Fever spider bodies are only dropped during Rum Deal.

Weapons and armour

Item Quantity Rarity Price High Alch
Adamant axe.png: Fever spider drops Adamant axe with rarity 2/36 in quantity 1Adamant axe12/36465768
Red d'hide chaps.png: Fever spider drops Red d'hide chaps with rarity 3/36 in quantity 1Red d'hide chaps13/362,4933,108
Adamant battleaxe.png: Fever spider drops Adamant battleaxe with rarity 1/36 in quantity 1Adamant battleaxe11/362,2742,496
Adamant med helm.png: Fever spider drops Adamant med helm with rarity 2/36 in quantity 1Adamant med helm12/368671,152

Herbs

Item Quantity Rarity Price High Alch
Grimy kwuarm.png: Fever spider drops Grimy kwuarm with rarity 6/36 in quantity 1Grimy kwuarm16/361,81412

Other

Item Quantity Rarity Price High Alch
Bass.png: Fever spider drops Bass with rarity 7/36 in quantity 1-2Bass1–27/3647–9424–48
Coins_250.png: Fever spider drops Coins with rarity 8/36 in quantity 200-600Coins200–6008/36200–600200–600
Pure essence.png: Fever spider drops Pure essence with rarity 2/36 in quantity 100-200 (noted)Pure essence100–200 (noted)2/36200–400200–400
Limpwurt root.png: Fever spider drops Limpwurt root with rarity 4/36 in quantity 1Limpwurt root14/362294

Gem drop table

There is a 1/36 chance of rolling the gem drop table.

Item Quantity Rarity Price High Alch
This does not exist.NothingN/A1/72.13; Never[d 1]N/AN/A
Uncut sapphire.png: Fever spider drops Uncut sapphire with rarity 1/144 in quantity 1Uncut sapphire11/144; 1/73.12[d 2]22815
Uncut emerald.png: Fever spider drops Uncut emerald with rarity 1/288 in quantity 1Uncut emerald11/288; 1/146.25[d 2]47330
Uncut ruby.png: Fever spider drops Uncut ruby with rarity 1/576 in quantity 1Uncut ruby11/576; 1/292.5[d 2]1,08760
Nature talisman.png: Fever spider drops Nature talisman with rarity 1/1,536 in quantity 1Nature talisman11/1,536; 1/780[d 2]2682
Uncut diamond.png: Fever spider drops Uncut diamond with rarity 1/2,304 in quantity 1Uncut diamond11/2,304; 1/1,170[d 2]2,439120
Rune javelin.png: Fever spider drops Rune javelin with rarity 1/4,608 in quantity 5Rune javelin51/4,608; 1/2,340[d 2]6751,200
Loop half of key.png: Fever spider drops Loop half of key with rarity 1/4,608 in quantity 1Loop half of key11/4,608; 1/2,340[d 2]9,75660
Tooth half of key.png: Fever spider drops Tooth half of key with rarity 1/4,608 in quantity 1Tooth half of key11/4,608; 1/2,340[d 2]9,88760
Rune spear.png: Fever spider drops Rune spear with rarity 1/73,728 in quantity 1Rune spear11/73,728; 1/4,387.5[d 2][d 3]11,59912,480
Shield left half.png: Fever spider drops Shield left half with rarity 1/147,456 in quantity 1Shield left half11/147,456; 1/8,775[d 2][d 3]65,35566,000
Dragon spear.png: Fever spider drops Dragon spear with rarity 1/196,608 in quantity 1Dragon spear11/196,608; 1/11,700[d 2][d 3]38,43837,440
  1. ^ The "nothing" drop is removed while wearing a ring of wealth.
  2. ^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.
  3. ^ 3.0 3.1 3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

Changes

Date Changes
25 June 2025
(Update)

Fever spiders now have a 25% elemental weakness to fire spells.

23 May 2024
(Update)
8 May 2024
(Update)

The NPC's drop table has been expanded.

10 September 2015
(Update)

Duradel no longer assigns players Fever spider tasks.

5 December 2006
(Update)
  • The NPC was graphically updated.
  • The NPC was renamed from "Fever Spider" to "Fever spider".
31 October 2005 –
5 December 2006 		5 December 2006 –
present

Trivia

  • According to slayer masters when asked for a tip with killing fever spiders, the type of disease the spiders carry is called the Spider Fever.[1]

References

  1. ^ Slayer Master. Old School RuneScape. "Fever Spiders are giant spiders that carry the deadly Spider Fever. If you don't want to catch it I suggest you wear Slayer Gloves to fight them."
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