Old School RuneScape bossing journey by taking on Sarachnis, the fearsome spider boss lurking in the Forthos Dungeon. Often underestimated as just a mid-level encounter, Sarachnis is actually a fantastic stepping stone for players who want to break into PvM while earning steady profits. In this guide, we'll cover everything you need to know about the fight-requirements, mechanics, gear, kill method, and what kind of loot you can expect.
Requirements & Preparation
To take on Sarachnis comfortably in 2025, you'll want:
Combat Stats:
65+ Attack, Strength, and Defence (80+ recommended for smoother kills)
70+ Hitpoints
43+ Prayer for protection prayers (the higher your Prayer, the easier the fight)
Quests & Access:
Sarachnis resides in the Forthos Dungeon, just west of Hosidius.
The easiest way to get there is via a Skills Necklace teleport to the Woodcutting Guild, then run east.
Supplies:
Sharks, Karambwans, or better food
Super combat potions for damage boosts
2–4 Prayer potions (depending on trip length)
Emergency teleport (just in case)
Gear Setup
Here's a sample mid-level setup that balances DPS, Prayer bonus, and survivability:
Weapon: Osmumten's Fang (best-in-slot accuracy for mid-tier players)
Helmet: Fire cape / Slayer helmet if on task
Body: Fighter torso / Proselyte hauberk
Legs: Ancient chaps / Rune platelegs
Boots: Dragon boots
Amulet: Amulet of Fury / Glory
Shield: Dragon defender
Gloves: Barrows' gloves
Ring: Warrior ring (i) or Berserker ring (i)
This setup prioritises melee DPS with strong accuracy, while still allowing for enough Prayer sustain to last multiple kills per trip.
Boss Mechanics
Sarachnis isn't a mechanically complex boss, but she has enough unique attacks to punish unprepared players. Here's what to look out for:
Basic Attacks – Sarachnis uses both melee and ranged attacks. Keep Protect from Melee active to negate most incoming damage.
Web Attack – Every four standard attacks, she launches a sticky web that can root you in place. If you're immobilised, keep calm and eat food if needed.
Prayer-Piercing Hits – Occasionally, her ranged attack will hit through OSRS gold protection prayers, so bring some ranged defence and food for safety.