Sarachnis

Monster
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You have the option to create a private instance for this fight.
On death, all unprotected items will be moved to a grave outside the instance. Any items left on the ground will be lost.
This article has a strategy guide.
All information on mechanics and strategy will be on this page.
This article has a Slayer task guide here.
Information comparing locations for Slayer tasks will be on this page.
Sarachnis
Released4 July 2019 (Update)
MembersYes
Combat level318
Size5x5
ExamineI'm going to need a really big newspaper...
League regionKourend Kourend✓
Combat info
XP bonus+7.5%
Max hit31
AggressiveYes
PoisonousNo
Attack styleMelee, Ranged
Attack speed4 ticks (2.4 seconds)
Respawn time17 ticks (10.2 seconds)
Slayer info
Slayer levelNone
Slayer XP430 xp
CategorySpiders, Bosses
Assigned by
Combat stats
400200240150150300
Aggressive stats
Monster attack bonusMonster strength bonusMonster magic strength bonusMonster ranged strength bonus
+30+0+0+0+15+15
Melee defence
+60+40+10
Magic defence
Fire elemental weakness
+15040% weakness
Ranged defence
LightStandardHeavy
+300+300+300
Immunities
Poison100% resistance
Venom100% resistance
Advanced data
Monster ID8713
LinkMOID

Sarachnis, the mother of the temple spiders,[1] is a mid-level boss found in the Forthos Dungeon, in a former burial tomb south of the Spider Den.

Sarachnis has several notable unique drops, including the Sarachnis cudgel, a non-degradeable crush weapon, and the pristine spider silk, used to upgrade the herb sack into the Silklined herb sack. Other drops include the giant egg sac, which is one of the few consistent sources of non-Wilderness red spiders' eggs, and improved drop rates of Forthos Dungeon-unique items.

She additionally has a high drop rate of elite clue scrolls for the relative time to defeat her.

She can be killed as part of a spider Slayer task.

Players may choose to pay 25,000 coins to fight Sarachnis in an instanced area via the thick web opening to her lair. This is reduced to 12,500 coins after claiming the rewards from the hard tier of Combat Achievements. Payment for an instance will be taken from the player's bank.

Location

Location Levels Members Spawns Map League region
Forthos Dungeon — Burial tomb318Members1Show mapKourend Kourend✓

Sarachnis is located in the burial tomb in the southern-most part of the dungeon, reached via the entrance across the river to the east of the Forthos Ruin.

Players will need a slash weapon or a knife to be able to pass through the webs that block access to where Sarachnis is located, unless using Aranea Boots. The same webs can be peeked through to see how many players are inside the tomb. The last thick webs that block access to the tomb do not need a slash weapon or a knife to be slashed through.

Fight overview

Sarachnis attacks with melee when players are adjacent to her, and ranged when they are out of melee range; she also heals upon dealing damage. Her attacks are accurate and can hit up to 31, so it is important to pray against her attacks correctly. Every four attacks, she will bind the player with a web that deals no damage but prevents them from moving for a few seconds, and will then move somewhere else in the arena. The web's duration can be fully negated with aranea boots. Players should use Protect from Missiles when Sarachnis shoots the web to block her next ranged attack, then quickly close to melee range and switch back to Protect from Melee. If done perfectly, players will take no damage from her attacks.

When fighting Sarachnis with two or more players, she will only target one player after she moves. If the targeted player is out of melee range, she will use her ranged attack on everyone in the arena. If the targeted player moves within melee range, she will only attack the targeted player with melee.

At 66% and 33% health, Sarachnis will summon two Spawns of Sarachnis, an orange melee user on the west side of the room, and a blue magic user on the east side of the room. It is recommended to tank the hits from the melee spawn, and kill the magic spawn when it appears. While doing this, the player should pray ranged as Sarachnis' ranged attacks are more dangerous than the spawns. Alternatively, with 100+ magic defense, you can ignore the minions, and continue to damage the boss instead.

Upon Sarachnis' death, all her spawns will die as well. Sarachnis will then respawn in 10 seconds.

Money making

The following money making guide is available for Sarachnis:

MethodHourly profitSkills
Killing Sarachnis474,351

Drops

Drop rates are estimated based on 2,900,316 samples from the Drop Rate Project, unless otherwise cited.

The average Sarachnis kill is worth 26,795.57.

The average Sarachnis kill while on a Konar task is worth 28,298.3.

Pre-roll

Item Quantity Rarity Price High Alch
Dragon med helm.png: Sarachnis drops Dragon med helm with rarity 2/384 in quantity 1Dragon med helm12/384[2]58,09060,000
Sarachnis cudgel.png: Sarachnis drops Sarachnis cudgel with rarity 1/384 in quantity 1Sarachnis cudgel11/384[2]108,84672,000

Weapons and armour

Item Quantity Rarity Price High Alch
Battlestaff.png: Sarachnis drops Battlestaff with rarity 2/100 in quantity 8-10 (noted)Battlestaff8–10 (noted)2/10057,440–71,80033,600–42,000
Rune platebody.png: Sarachnis drops Rune platebody with rarity 2/100 in quantity 1Rune platebody12/10038,54739,000
Rune med helm.png: Sarachnis drops Rune med helm with rarity 2/100 in quantity 1Rune med helm12/10011,17711,520
Rune 2h sword.png: Sarachnis drops Rune 2h sword with rarity 2/100 in quantity 1Rune 2h sword12/10038,12338,400

Runes and ammunition

Item Quantity Rarity Price High Alch
Blood rune.png: Sarachnis drops Blood rune with rarity 5/100 in quantity 80-100Blood rune80–1005/10029,920–37,40019,200–24,000
Chaos rune.png: Sarachnis drops Chaos rune with rarity 5/100 in quantity 175-200Chaos rune175–2005/10018,550–21,2009,450–10,800
Cosmic rune.png: Sarachnis drops Cosmic rune with rarity 5/100 in quantity 125-150Cosmic rune125–1505/10015,500–18,6003,750–4,500
Death rune.png: Sarachnis drops Death rune with rarity 5/100 in quantity 80-100Death rune80–1005/10014,800–18,5008,640–10,800
Soul rune.png: Sarachnis drops Soul rune with rarity 5/100 in quantity 80-100Soul rune80–1005/10030,400–38,00014,400–18,000
Mithril arrow.png: Sarachnis drops Mithril arrow with rarity 2/100 in quantity 450-600Mithril arrow450–6002/1002,700–3,6008,550–11,400
Mithril bolts.png: Sarachnis drops Mithril bolts with rarity 2/100 in quantity 175-225Mithril bolts175–2252/1004,725–6,0752,100–2,700

Seeds

There is a 2/100 chance of rolling the rare seed drop table. Maple, yew, and papaya tree seeds may also be dropped.

Item Quantity Rarity Price High Alch
Maple seed.png: Sarachnis drops Maple seed with rarity 1/100 in quantity 2Maple seed21/1006,73056
Papaya tree seed.png: Sarachnis drops Papaya tree seed with rarity 1/100 in quantity 2Papaya tree seed21/1002,738138
Yew seed.png: Sarachnis drops Yew seed with rarity 1/100 in quantity 1Yew seed11/10019,45185
Toadflax seed.png: Sarachnis drops Toadflax seed with rarity 1/252.3 in quantity 3Toadflax seed31/252.32,93718
Irit seed.png: Sarachnis drops Irit seed with rarity 1/368.2 in quantity 3Irit seed31/368.22169
Belladonna seed.png: Sarachnis drops Belladonna seed with rarity 1/381.1 in quantity 3Belladonna seed31/381.1324318
Poison ivy seed.png: Sarachnis drops Poison ivy seed with rarity 1/529.1 in quantity 3Poison ivy seed31/529.139297
Avantoe seed.png: Sarachnis drops Avantoe seed with rarity 1/539.6 in quantity 3Avantoe seed31/539.61,06812
Cactus seed.png: Sarachnis drops Cactus seed with rarity 1/567.7 in quantity 3Cactus seed31/567.7144177
Potato cactus seed.png: Sarachnis drops Potato cactus seed with rarity 1/778.6 in quantity 3Potato cactus seed31/778.627252
Kwuarm seed.png: Sarachnis drops Kwuarm seed with rarity 1/789.9 in quantity 3Kwuarm seed31/789.96,00918
Snapdragon seed.png: Sarachnis drops Snapdragon seed with rarity 1/1,184.8 in quantity 3Snapdragon seed31/1,184.8131,319108
Cadantine seed.png: Sarachnis drops Cadantine seed with rarity 1/1,703.1 in quantity 3Cadantine seed31/1,703.115,40512
Lantadyme seed.png: Sarachnis drops Lantadyme seed with rarity 1/2,369.6 in quantity 3Lantadyme seed31/2,369.633915
Snape grass seed.png: Sarachnis drops Snape grass seed with rarity 1/2,725 in quantity 9Snape grass seed91/2,725135,909504
Dwarf weed seed.png: Sarachnis drops Dwarf weed seed with rarity 1/3,892.9 in quantity 3Dwarf weed seed31/3,892.92,0709
Torstol seed.png: Sarachnis drops Torstol seed with rarity 1/6,055.6 in quantity 3Torstol seed31/6,055.646,389126

Herbs

There is a 6/100 chance to roll the combat herb drop table and a 4/100 chance to roll the useful herb drop table.

Item Quantity Rarity Price High Alch
Grimy kwuarm.png: Sarachnis drops Grimy kwuarm with rarity 15/800 in quantity 10-15 (noted)Grimy kwuarm10–15 (noted)15/80018,140–27,210120–180
Grimy dwarf weed.png: Sarachnis drops Grimy dwarf weed with rarity 12/800 in quantity 10-15 (noted)Grimy dwarf weed10–15 (noted)12/80013,430–20,145140–210
Grimy cadantine.png: Sarachnis drops Grimy cadantine with rarity 12/800 in quantity 10-15 (noted)Grimy cadantine10–15 (noted)12/80020,760–31,140130–195
Grimy avantoe.png: Sarachnis drops Grimy avantoe with rarity 10/800 in quantity 5-10 (noted)Grimy avantoe5–10 (noted)10/8006,705–13,41050–100
Grimy lantadyme.png: Sarachnis drops Grimy lantadyme with rarity 9/800 in quantity 10-15 (noted)Grimy lantadyme10–15 (noted)9/80012,320–18,480130–195
Grimy snapdragon.png: Sarachnis drops Grimy snapdragon with rarity 8/800 in quantity 5-10 (noted)Grimy snapdragon5–10 (noted)8/80036,090–72,18060–120
Grimy ranarr weed.png: Sarachnis drops Grimy ranarr weed with rarity 8/800 in quantity 5-10 (noted)Grimy ranarr weed5–10 (noted)8/80026,310–52,62090–180
Grimy torstol.png: Sarachnis drops Grimy torstol with rarity 6/800 in quantity 5-10 (noted)Grimy torstol5–10 (noted)6/80014,770–29,54075–150

Materials

Item Quantity Rarity Price High Alch
Mithril ore.png: Sarachnis drops Mithril ore with rarity 6/100 in quantity 60-90 (noted)Mithril ore60–90 (noted)6/1009,060–13,5905,820–8,730
Red dragonhide.png: Sarachnis drops Red dragonhide with rarity 5/100 in quantity 15-25 (noted)Red dragonhide15–25 (noted)5/10031,080–51,8001,305–2,175
Uncut sapphire.png: Sarachnis drops Uncut sapphire with rarity 4/100 in quantity 20-30 (noted)Uncut sapphire20–30 (noted)4/1004,560–6,840300–450
Adamantite ore.png: Sarachnis drops Adamantite ore with rarity 3/100 in quantity 30-40 (noted)Adamantite ore30–40 (noted)3/10016,200–21,6007,200–9,600
Uncut emerald.png: Sarachnis drops Uncut emerald with rarity 3/100 in quantity 20-30 (noted)Uncut emerald20–30 (noted)3/1009,460–14,190600–900
Onyx bolt tips.png: Sarachnis drops Onyx bolt tips with rarity 2/100 in quantity 8-10Onyx bolt tips8–102/10064,624–80,7804,800–6,000
Uncut ruby.png: Sarachnis drops Uncut ruby with rarity 2/100 in quantity 20-30 (noted)Uncut ruby20–30 (noted)2/10021,740–32,6101,200–1,800
Runite ore.png: Sarachnis drops Runite ore with rarity 1/100 in quantity 4-6 (noted)Runite ore4–6 (noted)1/10040,900–61,3507,680–11,520
Uncut diamond.png: Sarachnis drops Uncut diamond with rarity 1/100 in quantity 20-30 (noted)Uncut diamond20–30 (noted)1/10048,780–73,1702,400–3,600

Other

Item Quantity Rarity Price High Alch
Coins_10000.png: Sarachnis drops Coins with rarity 6/100 in quantity 17000-25000Coins17,000–25,0006/10017,000–25,00017,000–25,000
Dragon bones.png: Sarachnis drops Dragon bones with rarity 5/100 in quantity 10-15 (noted)Dragon bones10–15 (noted)5/10033,240–49,860960–1,440
Egg potato.png: Sarachnis drops Egg potato with rarity 5/100 in quantity 5-8Egg potato5–85/1001,005–1,60835–56
Weapon poison(++).png: Sarachnis drops Weapon poison(++) with rarity 2/100 in quantity 4-6 (noted)Weapon poison(++)4–6 (noted)2/1009,116–13,6741,036–1,554
Crystal key.png: Sarachnis drops Crystal key with rarity 1/100 in quantity 1Crystal key11/10020,31990
Spider carcass.png: Sarachnis drops Spider carcass with rarity 1/100 in quantity 10 (noted)Spider carcass10 (noted)1/1002,30090

Gem drop table

There is a 1/100 chance of rolling the gem drop table.

Item Quantity Rarity Price High Alch
This does not exist.NothingN/A1/200.37; Never[d 1]N/AN/A
Uncut sapphire.png: Sarachnis drops Uncut sapphire with rarity 1/400 in quantity 1Uncut sapphire11/400; 1/203.13[d 2]22815
Uncut emerald.png: Sarachnis drops Uncut emerald with rarity 1/800 in quantity 1Uncut emerald11/800; 1/406.25[d 2]47330
Uncut ruby.png: Sarachnis drops Uncut ruby with rarity 1/1,600 in quantity 1Uncut ruby11/1,600; 1/812.5[d 2]1,08760
Nature talisman.png: Sarachnis drops Nature talisman with rarity 1/4,266.67 in quantity 1Nature talisman11/4,266.67; 1/2,166.67[d 2]2682
Uncut diamond.png: Sarachnis drops Uncut diamond with rarity 1/6,400 in quantity 1Uncut diamond11/6,400; 1/3,250[d 2]2,439120
Rune javelin.png: Sarachnis drops Rune javelin with rarity 1/12,800 in quantity 5Rune javelin51/12,800; 1/6,500[d 2]6751,200
Loop half of key.png: Sarachnis drops Loop half of key with rarity 1/12,800 in quantity 1Loop half of key11/12,800; 1/6,500[d 2]9,75660
Tooth half of key.png: Sarachnis drops Tooth half of key with rarity 1/12,800 in quantity 1Tooth half of key11/12,800; 1/6,500[d 2]9,88760
Rune spear.png: Sarachnis drops Rune spear with rarity 1/204,800 in quantity 1Rune spear11/204,800; 1/12,187.5[d 2][d 3]11,59912,480
Shield left half.png: Sarachnis drops Shield left half with rarity 1/409,600 in quantity 1Shield left half11/409,600; 1/24,375[d 2][d 3]65,35566,000
Dragon spear.png: Sarachnis drops Dragon spear with rarity 1/546,133.33 in quantity 1Dragon spear11/546,133.33; 1/32,500[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.

Tertiary

Item Quantity Rarity Price High Alch
Tattered moon page.png: Sarachnis drops Tattered moon page with rarity 1/5 in quantity 1Tattered moon page11/5[2][d 1]Not sold0
Tattered sun page.png: Sarachnis drops Tattered sun page with rarity 1/5 in quantity 1Tattered sun page11/5[2][d 1]Not sold0
Tattered temple page.png: Sarachnis drops Tattered temple page with rarity 1/5 in quantity 1Tattered temple page11/5[2][d 1]Not sold0
Giant egg sac(full).png: Sarachnis drops Giant egg sac(full) with rarity 1/20 in quantity 1Giant egg sac(full)11/20[2]17,3836
Grubby key.png: Sarachnis drops Grubby key with rarity 1/15 in quantity 1Grubby key11/15[2]32,55719
Clue scroll (hard).png: Sarachnis drops Clue scroll (hard) with rarity 1/40 in quantity 1Clue scroll (hard)11/40[d 2][d 3][3]Not sold12
Brimstone key.png: Sarachnis drops Brimstone key with rarity 1/57 in quantity 1Brimstone key11/57[d 4]Not soldN/A
Pristine spider silk.png: Sarachnis drops Pristine spider silk with rarity 1/50 in quantity 1Pristine spider silk11/50Not sold600
Clue scroll (elite)11/60[d 5][d 3][3]Not sold12
Jar of eyes11/2,000[2]53,6811
Sraracha11/3,000[2]Not soldN/A
  1. ^ 1.0 1.1 1.2 The drop rate to receive any page is 1/5. When rolled, the player will receive the page they have the fewest of.
  2. ^ The hard clue scroll drop rate increases to 1/38 after unlocking the hard Combat Achievements rewards tier.
  3. ^ 3.0 3.1 Clue scrolls will drop as scroll boxes after the completion of X Marks the Spot.
  4. ^ Brimstone keys are only dropped while on a Slayer task given by Konar quo Maten.
  5. ^ The elite clue scroll drop rate increases to 1/57 after unlocking the elite Combat Achievements rewards tier.

Combat Achievements

There are 5 Combat Achievement tasks (totalling 11 points) available for Sarachnis.

NameDescriptionTypeTierComp%
Sarachnis NoviceKill Sarachnis 10 times.Kill Count Easy (1 pt)28.8%
Newspaper EnthusiastKill Sarachnis with a crush weapon.Restriction Medium (2 pts)30.8%
Sarachnis ChampionKill Sarachnis 25 times.Kill Count Medium (2 pts)24.8%
Inspect RepellentKill Sarachnis without her dealing damage to anyone.Perfection Hard (3 pts)28.1%
Ready to PounceKill Sarachnis without her using her range attack twice in a row.Mechanical Hard (3 pts)24.7%

Changes

Date Changes
30 June 2026
(Update)

Transformation rings can no longer be used to avoid Sarachnis' web attack.

18 March 2026
(Update)

Drops in the Sarachnis instance now last longer on the ground before disappearing.

11 March 2026
(Update)

The respawn timer for Sarachnis in a private instance has been reduced from 20 seconds to 10 seconds.

25 February 2026
(Update | poll)
  • Private instances of Sarachnis can now be created.
  • Sarachnis now has a chance at dropping pristine spider silk.
25 June 2025
(Update)

Sarachnis now has a 40% elemental weakness to fire spells.

26 March 2020
(Update | poll)

Sarachnis's respawn timer has been reduced from 30 seconds to 10 seconds.

1 August 2019
(Update)

Players can no longer avoid Sarachnis' web attack via the use of various items.

Trivia

  • Upon examining the egg sacs in Sarachnis' lair, the chatbox will state It's making sounds inside. It's going to hatch soon! This is the verbatim message that is given upon checking the status of a Pokémon egg that will hatch soon in Pokémon Gold, Silver, and Crystal.
  • Sarachnis was originally going to be an instanced solo boss, but was reworked into a non-instanced boss in a multicombat area after player complaints about the abundance of bosses being fought in instances already.
    • An instanced option for Sarachnis was added on 25 February 2026 after passing a poll, roughly six and a half years after release.
  • Her food drop, egg potatoes, could be thematically interpreted as a food made from spider eggs.
  • Sarachnis is one of the few NPCs in the game that can sprint. Whenever she uses her web attack, she sprints to her next location moving 2 tiles per tick. This makes hitting her while she moves very inconsistent as her model is not representative of where she is.
  • Contrary to popular belief, Sarachnis' body is not a recoloured dead chompy bird, despite their visual similarities.[4]

References

  1. ^ Slayer Master. Old School RuneScape. "Sarachnis can be found in the Forthos Dungeon. She is the mother of the temple spiders, be careful not to get overwhelmed."
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8
  3. ^ 3.0 3.1
  4. ^ Mod West. "Fun fact: Mod Husky used chompy bird’s model as the body while desingning sarachnis.". Reddit. 3 August 2021. Archived from the original on 12 May 2026. Mod West: "This comes up often but it’s honestly just a coincidence. I sat next to Mod Gee when she made it and I don’t recall chompy birds ever coming up and highly doubt it’s something she would’ve done intentionally."