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OSRS Eclipse Moon Guide: Gear, Clone Phase & Mechanics

July 27, 2026

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OSRS Eclipse Moon Guide: Gear, Clone Phase & Mechanics — Bils Services

Eclipse Moon guide for clone phase, gear, and finishing the Moons loop.

Overview: Eclipse Moon at a Glance

Eclipse Moon is a full boss in the Moons of Peril group, rated 3 out of 5 in our boss index and normally fought solo.

Before you can fight Eclipse Moon you need Perilous Moons quest.

Clone phase is what this fight actually asks of you, and it is the thing standing between you and eclipse moon armour set.

Its attack penetrates protection prayers, so praying against it does nothing.

In our index it sits in the Moons of Peril group at difficulty 3 of 5, where kill times come down to clone phase.

Eclipse Moon — key facts
  • Field
    Classification
    Detail
    Moons of Peril boss (Boss)
  • Field
    Group
    Detail
    Moons of Peril
  • Field
    Difficulty
    Detail
    3 / 5
  • Field
    Solo or team
    Detail
    Solo
  • Field
    Access requirement
    Detail
    Perilous Moons quest
  • Field
    Notable reward
    Detail
    Eclipse moon armour set, eclipse atlatl
  • Field
    Signature mechanic
    Detail
    Clone phase
  • Field
    Hitpoints
    Detail
    500
  • Field
    Max hits
    Detail
    32 total [4+8+20]
  • Field
    Released
    Detail
    20 March 2024

Access Requirements

Eclipse Moon is gated behind Perilous Moons quest.

Perilous Moons quest also tends to sit alongside the other Moons of Peril gates, so it is usually cheaper to clear them together than to come back for each one. The boss requirements checklist lists them by group.

Location and How to Get There

Eclipse Moon is found in Neypotzli, where the three Moons of Peril are imprisoned.

Neypotzli via Varlamore, after Perilous Moons. Eclipse is usually fought last in the rotation, so arrive with supplies still in the bag rather than scraping through on what the first two left you.

Recommended Combat Stats and Gear

Eclipse Moon — what to bring and what it resists
  • Check
    Protection prayers
    Value
    None — its attack penetrates them
  • Check
    Its Defence level
    Value
    60
  • Check
    Its Magic level
    Value
    100
  • Check
    Its lowest defence bonus, per its infobox
    Value
    stab
  • Check
    Elemental weakness
    Value
    15% to air spells

Inventory and Supplies

  • Food sized to its max hits: 32 total [4+8+20].
  • No prayer potions for protection — its attack penetrates prayers.
  • No cannon — it is immune.
  • A teleport out.

Mechanics: Attack Styles, Max Hits and Immunities

Eclipse Moon — combat profile (wiki infobox values)
  • Property
    Combat level
    Value
    329
  • Property
    Attack styles
    Value
    Typeless slash
  • Property
    Attack speed
    Value
    6 ticks
  • Property
    Attacks on sight
    Value
    Yes
  • Property
    Poisons you
    Value
    No
  • Property
    Size
    Value
    5 tiles
  • Property
    Immune to cannon
    Value
    Yes

Fight Strategy: Clone phase

  1. Position first. There is no protection prayer to set here.
  2. Its lowest defence bonus is against stab.
  3. Eat and reposition inside its 6-tick cycle.
  4. Bank before a 32 can erase you.
  • Clones are the skill check
  • Clear them without dumping all food
  • Finish the three-moon loop for rewards
  • Verify drop tables live

Drops and What Eclipse Moon Is Worth

Drops worth the trip: Eclipse moon armour set, eclipse atlatl. Whether that is worth your time depends on how many kills an hour you personally get, which is a function of clone phase rather than of your gear list.

Combat Achievements

Eclipse Moon has Combat Achievement tasks. With a 32 max hit the restrictions are mostly about execution rather than survival.

Task lists move with updates — read the current list in game.

Combat Achievements guide

Ironman Notes

Without a Grand Exchange, eclipse moon armour set, eclipse atlatl has to be earned rather than bought, and this is the fastest table it sits on.

Common Mistakes and Death Causes

  • Ignoring that clones are the skill check
  • Ignoring that clear them without dumping all food
  • Ignoring that finish the three-moon loop for rewards
  • Ignoring that verify drop tables live
  • Buying an upgrade before clone phase is consistent
  • Gearing for Eclipse Moon before finishing Perilous Moons quest
  • Walking in before prayers are on
  • Setting up a cannon it is immune to

FAQ

What do I need to fight Eclipse Moon?

Perilous Moons quest

Which protection prayer should I use at Eclipse Moon?

It attacks with typeless slash, so pray against that.

How hard does Eclipse Moon hit?

Max hits of 32 total [4+8+20], with 500 hitpoints.

Can I use a dwarf multicannon at Eclipse Moon?

No. It is immune to cannon damage.

Where is Eclipse Moon and how do I get there?

Neypotzli, where the three Moons of Peril are imprisoned. Neypotzli via Varlamore, after Perilous Moons. Eclipse is usually fought last in the rotation, so arrive with supplies still in the bag rather than scraping through on what the first two left you.

Is Eclipse Moon worth doing?

Yes, for what it drops — Eclipse moon armour set, eclipse atlatl — if you want that specific reward. It is not a general money maker, and we do not publish a GP per hour figure for it because that number changes with the Grand Exchange.

What kills people at Eclipse Moon?

Clones are the skill check

Bottom Line

The honest summary of Eclipse Moon is that clone phase is the whole difficulty, and it is learnable in an evening. After that the only variable left is how many trips you are willing to do for eclipse moon armour set.

If Eclipse Moon is blocking a Combat Achievement or an unlock you actually want, our PvM service is done by hand — no automation. Otherwise the bosses list has the full index.

Eclipse Moon — Moons of Peril boss, difficulty 3/5. Combat values here — hitpoints, max hits, attack styles and speed, Defence and Magic levels, immunities and Slayer requirements — were read from the Old School RuneScape Wiki infobox for Eclipse Moon on 2026-08-03. Kill rates, GP per hour and item prices are deliberately absent because they move with balance patches and the Grand Exchange.

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