Signature drop: Dragon defender

Cyclossus

Cyclossus is a level 89 free-to-play monster found in Asgarnia, with 12,600 life points. It is weak to stab weapons. It is the top source of Cyclopean helmet.

“A one-eyed maneater.”

Level 89Free-to-playAttacks with melee

Updated 9 October 2026. Stats and drops from the RuneScape Wiki's monster and drop data (CC BY-NC-SA 3.0), checked 2026-10-09. Wiki page. Item sprites © Jagex.

Combat stats

Combat level: 89
Life points: 12,600
Combat XP per kill: 630
Max hit: 960
Armour: 1,264
Attack style: Melee
Weakness: Stab
Immune to: Poison
Aggressive: No
Poisonous: No

Slayer

Slayer level: None needed
Slayer XP per kill: 350
Task: Cyclopes
Assigned by: Mazchna

Where

Asgarnia

Ironman notes

Counts as a Slayer task from Mazchna (task: cyclopes). Killing it on task earns Slayer XP and points.
Weak to stab weapons: bring that style for faster kills.
Immune to poison.
Drops 13 kinds of seed, which keeps farm patches stocked.
Drops blue charm, gold charm, green charm and crimson charms for Summoning pouches.
Always drops Big bones: Prayer XP as you go.
It can also roll the shared rare drop table (gems, key halves and bulk supplies); luck items improve those odds.

Best for

Only from this monster

No other monster drops these.

Cyclopean helmet42/100

Drops (50)

Item	Quantity	Rarity
Coins	1900–2099	10/100
Big bones	1, 2	Always
Cyclopean helmetOnly source	1	42/100
Dragon defenderBest rate	1	1/4
Rune defenderBest rate	1	1/4
Shoulder boneBest rate	1	1/4
Blood rune	15–24	1/100
Mithril arrow	5–24	1/100
Mithril bolts	5–24	1/100
Limpwurt root	5	2/100
Adamant arrow	5–14	1/100
Adamant bolts	5–14	1/100
Shark	1	8/100
Swordfish	1	8/100
Blue charm	1	76.8/1,000
Gold charm	1	48/1,000
Adamantite stone spirit	1	3/100
Medium plated adamant salvage	1	3/100
Green charm	1	24/1,000
Medium bladed mithril salvage	1	2/100
Small bladed mithril salvage	1	2/100
Small plated mithril salvage	1	2/100
Super strength (2)	1	2/100
Uncut diamond	1	2/100
Uncut ruby	1	2/100
Crimson charm	1	19.2/1,000
Medium bladed adamant salvage	1	1/100
Medium blunt mithril salvage	1	1/100
Runite stone spirit	1	1/100
Tiny blunt adamant salvage	1	1/100
Tiny plated rune salvage	1	1/100
Spirit sapphire#2 rate	1	5/2,000
Toadflax seed	1	1/465.1
Sealed clue scroll (hard)	1	1/512
Spirit emerald#2 rate	1	3/2,000
Cave nightshade seed	1	1/689.7
Irit seed	1	1/689.7
Avantoe seed	1	1/1,000
Poison ivy seed	1	1/1,000
Spirit ruby#2 rate	1	2/2,000
Cactus seed	1	1/1,052.6
Kwuarm seed	1	1/1,428.6
Snapdragon seed	1	1/2,222.2
Cadantine seed	1	1/3,333.3
Dwarf weed seed	1	1/6,666.7
Lantadyme seed	1	1/6,666.7
Spirit weed seed	1	1/6,666.7
Mimic kill token	1	1/9,911
Torstol seed	1	1/10,000
Starved ancient effigy	1	1/23,243

Most common first. “Best rate” and “#2/#3 rate” compare expected drops per kill with every other monster that drops the item. Rare drop table items are not repeated here.