Updated June 2026
Ghost Captain Boss in 100 Days At Sea
Ghost Captain guards Shipwreck Island in 100 Days At Sea — the critical mid-game boss after Sand Worm, testing mixed melee add clears and ranged weak-point shots during ghost phase transitions. Iron from this island feeds Iron Armor before Volcano on volcano island. Fog reduces visibility without Night Lantern. This guide covers arena access on shipwreck island, team comps, and boss fights phase notes.
Location and Prerequisites
Island: Shipwreck Island (Medium). Arena: fog-shrouded wreck deck — swim or bridge access from main dock.
Gear: Iron Sword, Flintlock Pistol, partial-to-full Iron Armor recommended, 10+ Medkits.
Iron farm priority — many groups fight Captain while still gathering 25 Iron for full armor set.
Phase Mechanics
Ghost phase: Captain teleports — ranged weak-point shots during fade-in windows. Melee cleans deck adds.
Fog phase: visibility drops — Night class (+20% night vision) or Lantern consumables help.
Enrage: faster teleport cycle — Swordsman attack speed (+15%) and Sharpshooter crit valuable.
Battle Bunny dodge (+20%) avoids cleave one-shots on medium armor.
Recommended Classes and Team
Tank: Soldier (+15% defense). DPS: Battle Buku, Sharpshooter, Swordsman. Sustain: Medic.
Duo viable with ranged + melee split. Trio adds dedicated Medic for fog phase chip damage.
Co-op anchor per co op strategy — one player maintains add clear while others focus Captain.
Loot and Post-Fight Priorities
Confirm 25 Iron for Iron Armor before Volcano sail — armor recipe non-negotiable.
Purple chest tier farming resumes post-clear on chest tiers.
Pearl drops possible — stack with daily boss quests on daily quests.
Gear Crafting Checklist
Iron Sword (15 Iron), Flintlock (10 Iron), Iron Armor (25 Iron) — full list on crafting.
Cooking Pot (2 Iron) upgrade for Volcano fire resist meal prep.
Gunpowder stock from wreck crates before leaving island.
Common Mistakes
Sailing to Volcano without full Iron Armor after Captain clear — Lava Guardian wipes.
All-melee comp without ranged weak-point damage — ghost phases timeout.
Next boss: lava guardian after Volcano landing.
Frequently Asked Questions
Where is Ghost Captain?
Shipwreck Island wreck deck arena — Medium difficulty after Desert Island.
Do I need ranged weapons for Ghost Captain?
Yes — ghost phases require ranged weak-point damage plus melee add clear.
Should I craft Iron Armor before or after Ghost Captain?
Before Volcano Island — farm 25 Iron on Shipwreck; Captain fight can happen during Iron grind.
What class helps in fog?
Night class +20% night vision — Lantern consumables also help visibility.
What island comes after Shipwreck?
Volcano Island — Lava Guardian boss after Iron Armor is complete.