Overview
This guide covers defeating the Leviathan boss in Blox Fruits' Third Sea. Follow these steps to summon and defeat this challenging boss. Successfully completing this objective allows you to obtain the Leviathan Heart for crafting Sanguine Art.
Requirements
Requirement | Details |
|---|---|
Fragments | 6,000 to bribe the Spy NPC |
Players | Group of at least five players |
Location | Must be in the Third Sea, specifically the 'Question Mark' zone (Rough Sea) |
Recommended Loadout
Slot | Recommended | Why |
|---|---|---|
Boat | Grand Brigade | High HP for durability |
Boat | Lantern | Free to unlock, easier to maneuver during ship raids |
Subclass | Shipwright | Essential for repairing boats during the hunt |
Progression Guide
Summoning the Leviathan
- Travel to Tiki Outpost in the Third Sea.
- Locate the Spy NPC at the very top of Tiki Outpost.
- Interact with the Spy and select 'Clues'.
- If the Spy offers clues about the Leviathan, bribe him for 6,000 fragments to summon the boss.

- If the Spy says 'I don't know anything yet', you are on cooldown from a previous Leviathan defeat. Defeat 20 Sea events to reset the cooldown. Alternatively, have a teammate not on cooldown bribe the Spy.
Preparing for the Hunt
- Select a suitable boat. The Grand Brigade offers high HP. The Lantern is a free, smaller option with comparable health and better maneuverability for dodging cannonballs.

- Assemble a group of at least five players. The Leviathan will not spawn without a minimum of five players on the boat.

Locating the Leviathan
- Navigate your boat into the ocean, following your compass.
- Proceed until you reach the 'Question Mark' zone, also known as the Rough Sea. This zone causes your compass to act erratically and the screen to darken. The Leviathan spawns only in this zone.
- Once in the 'Question Mark' zone, find the Frozen Dimension.
- Interact with the frozen orb within the Frozen Dimension to initiate the boss battle.
Leviathan Boss Battle
- The Leviathan emerges from the sea.

- Focus attacks on the Leviathan's three tails first. Each tail destroyed reduces the boss's health by 250,000 and drops Leviathan Scales.

- After all three tails are destroyed, the Leviathan's main body shield drops.
- Attack the Leviathan's main body to defeat the boss.
Aftermath: Leviathan Heart
- Upon defeating the Leviathan, the Leviathan Heart will spawn.
- Use the Beast Hunter Boat to hook the Leviathan Heart.
- Return to Tiki Outpost with the Leviathan Heart hooked to your boat to add it to your inventory.
- The Leviathan Heart is used to craft Sanguine Art, one of the best fighting styles in the game, and for mythical scrolls.

Key Items and Unlocks
Item / Unlock | How to Get | Why It Matters |
|---|---|---|
Leviathan Heart | Drops from defeated Leviathan; retrieved with Beast Hunter Boat | Crafts Sanguine Art and mythical scrolls |
Sanguine Art | Crafted using the Leviathan Heart | Considered one of the best fighting styles |
Leviathan Scales | Drops from Leviathan tails | Used to craft accessories and the Beast Hunter Boat |
Tips and Tricks
- Have the Shipwright subclass equipped. It allows you to repair boats during Leviathan hunts.
- Damage all three Leviathan tails to maximize Leviathan Scales collected.
- Bypass your personal Leviathan cooldown by having a teammate who is not on cooldown bribe the Spy.
Frequently Asked Questions
What is the fastest way to summon the Leviathan after defeating it?
After defeating the Leviathan, you enter a cooldown. Defeat 20 Sea events to reset it, or have a teammate not on cooldown bribe the Spy for you.
How many players are required to find the Leviathan?
You need a group of at least five players on your boat to find and spawn the Leviathan.
What boat is recommended for the Leviathan battle?
The Grand Brigade is recommended for its high HP. The Lantern is a free alternative, offering good health and easier maneuverability.
What is the Leviathan Heart used for?
The Leviathan Heart is used to craft Sanguine Art, a top-tier fighting style, and for creating mythical scrolls.
What happens if the Spy NPC says 'I don't know anything yet'?
If the Spy NPC gives this message, it means you have recently defeated the Leviathan and are currently on cooldown. You must complete 20 Sea events or have a teammate summon it.