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How to complete the Dead Ends dungeon in FFXIV Endwalker: All encounters, bosses, & how to start

Master The Dead Ends dungeon in FFXIV Endwalker with complete boss strategies and practical combat tips

  • 8c77a5 Published on 2026-03-30
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Master The Dead Ends dungeon in FFXIV Endwalker with complete boss strategies and practical combat tips

Introduction to The Dead Ends

Prepare to conquer Final Fantasy XIV Endwalker’s climactic dungeon experience in the depths of outer space. This comprehensive guide provides everything you need to navigate The Dead Ends successfully.

Master the ultimate challenge in FFXIV Endwalker’s narrative conclusion with our detailed Dead Ends dungeon walkthrough.

Final Fantasy XIV Endwalker concludes the epic saga of the Warrior of Light facing the apocalyptic Final Days, where civilization’s extinction becomes an imminent threat requiring heroic intervention.

During the climax of this monumental adventure, you’ll explore the farthest reaches of Ultima Thule and confront the haunting remnants of fallen civilizations within “The Dead Ends.” Our expert guidance will help you survive this treacherous location and emerge victorious.

Unlocking Requirements

Gaining access to The Dead Ends requires completing specific Main Scenario Quest prerequisites in the proper sequence.

To unlock this challenging dungeon, complete the following Main Scenario Quest chain:

  • Quest Giver: Alphinaud
  • Location: Ultima Thule (21.5, 21.5)
  • Leave the Sixth End behind
  • Leave the Eighth End behind
  • Meet the Seventeenth End
  • Leave the Seventeenth End behind

    • Pro Tip: Ensure your item level meets the minimum requirement of 565 for optimal performance. The dungeon syncs to 575, but higher gear will make mechanics more manageable.

    Dungeon Structure & Mechanics

    The Dead Ends features three distinct thematic areas representing different civilization endpoints, each with unique environmental hazards and enemy compositions.

    The Dead Ends presents three areas called “Sixth End”, “Eighth End”, and “Seventeenth End”. These will feature several minor enemies that you will have to kill on your way through them, and at the end of each zone, a boss battle will happen.

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    • Keep in mind that failing any mechanic will result in whoever failed them receiving a two-minute stacking Vulnerability Up debuff.

    Strategy Insight: The Vulnerability stacks persist through death, making mechanical perfection crucial for later boss encounters. Healers should prioritize Esuna for certain debuffs while DPS focus on efficient trash pack clearing.

    Caustic Grebuloff Boss Fight

    The first boss encounter tests your environmental awareness and AoE pattern recognition in the Pestilent Sands arena.

    As you arrive at the end of the Sixth End, Caustic Grebuloff will be waiting for you in its fighting arena. Keep in mind that stepping inside a puddle on the ground in the Pestilent Sands or the Greuloff Pillars will debuff you with a damage over time debuff called Toxicosis, which inflicts heavy damage per second. The movements it will use in this fight are the following:

  • Miasmata: Caustic Grebuloff will spawn a room-wide AoE and also AoE circles around the arena. These will move through the arena in the direction of the wind, so keep close attention to that and position yourself to successfully avoid. If you fail you will get a Necrosis debuff, which will kill you if you don’t get it removed by a healer.
  • Cough Up: Drops 3 sets of AoEs on each player, spread apart to avoid overlapping. After the AoE circles, players will receive a red arrow above their head. Stack together to resolve the mechanic.
  • Wave of Nausea: This is a donut AoE that will spawn around Caustic Grebuloff. Move inside its hitbox to successfully avoid.
  • Pox Flail: This is a Tankbuster attack, which means it’ll target the Tank of the party and they must take it alone, as any other Role Class near will likely die.
  • Blighted Water: One of the party members will receive a stack marker and you must group together to mitigate damage when it drops.
  • Befoulment: Caustic Grebuloff will cast targeted AoE circles, and you must spread to avoid overlapping.

    • Advanced Tactics: Position near the edge during Miasmata to maximize dodging space. Healers should pre-cast AoE heals before stack markers, and tanks can use reprisal during raid-wide attacks. The red arrow mechanic requires quick grouping – communicate positioning with your team.

    Peacekeeper Boss Fight

    This mechanized guardian demands precise movement and spatial awareness with its complex AoE combinations and knockback mechanics.

    As you arrive at the end of the Eighth End, Peacekeeper will be waiting for you in its fighting arena. The movements it will use in this fight are the following:

  • Decimation: Raid-wide AoE that also covers the borders of the arena with fire.
  • Electromagnetic Repellant: Peacekeeper spawns an electromagnetic field on its position that can debuff you with Electrocution and inflicts continuous damage until you move out.
  • Order To Fire: Peacekeeper spawns turrets around itself that will shoot line AoEs outward. Move into any of the safe zones between the lines and the border of the arena to successfully avoid, but keep in mind any other extra mechanic and try to not overlap with the rest of your party.
  • No Future: Peacekeeper spawns targeting circles that will hit every area of the arena at some point, so move accordingly to areas that don’t have targeting circles yet, or wherever a circle already exploded. Ra-la will summon two sets of circles on the first cast and three sets from the second cast onwards.
  • Peacefire: Peacekeeper spawns rotating AoEs around itself, always accompanying Electromagnetic Repellant or other techniques like Order To Fire. To successfully avoid, rotate following these AoEs.
  • Eclipsing Exhaust: Peacekeeper spawns AoE circles around the borders of the arena, then triggers a knockback attack from the center. Position yourself in any gap between the circles to successfully avoid.
  • Elimination: This is a Tankbuster attack, which means it’ll target the Tank of the party and they must take it alone, as any other Role Class near will likely die.

    • Positioning Mastery: During Order To Fire, identify safe lanes early and communicate positions. For Eclipsing Exhaust, use knockback immunity skills if available. The rotating Peacefire patterns require constant camera adjustment – practice tracking multiple mechanic types simultaneously.

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    Ra-la Final Boss Battle

    The climactic encounter against Ra-la tests your mechanical execution with deadly precision requirements and the threatening Doom mechanic.

    As you arrive at the end of the Seventeenth End, Ra-la will be waiting for you in its fighting arena. The movements it will use in this fight are the following:

  • Warm Glow: A Raid-wide AoE, you can mitigate and heal through it.
  • Pity: This is a Tankbuster attack, which means it’ll target the Tank of the party and they must take it alone, as any other Role Class near will likely die.
  • Prance: Ra-la will jump four times, spawning golden circles that will grow in size and explode after a while, in the order that they spawned. Move into the later circles and go back to the first ones after they explode to successfully avoid damage.
  • Lifesbreath: Ra-la will jump outside the arena and then shoot an AoE line through its middle. After that, a line of butterflies will pop up in the same location, each one facing different sides. After a bit, they will shoot forward in the direction they’re facing, so you must keep close attention and position yourself behind a butterfly to successfully avoid it. If you fail, you will get a Doom debuff, which will kill you unless you get back to full HP.
  • Benevolence: One of the party members will receive a stack marker and you must group together to mitigate damage when it drops.
  • Loving Embrace: Ra-la will raise one of its wings, summoning an AoE that will hit the corresponding side of the arena. Move to the opposite side to successfully avoid.
  • Still Embrace: Targeted AoE circles, spread to avoid overlapping.

    • Doom Management: The Lifesbreath Doom debuff requires immediate full healing – healers should prepare oGCD abilities for quick response. During Prance, mentally note explosion sequence and move deliberately. Butterfly positioning demands careful observation of facing directions – don’t rush this mechanic.

    Party Coordination: Designate stack positions beforehand for Benevolence. Tanks should use cooldowns strategically for Pity while maintaining boss positioning for cleave attacks. DPS should prioritize movement efficiency over optimal rotation during complex mechanic sequences.

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