The August 7, 2026 update for Haze Seas puts a Level 10,000 Cthulhu super boss at the center of the endgame, and it brings the Dual Dark Blade, the Abyssal Eye accessory, several new titles, and a batch of balance and mobile fixes along with it. The boss ties into the recurring sea storm, so summoning it depends on timing and a crafted item rather than a simple button.
Quick answer: Craft a Prismatic Shard at Doran the Forge, wait for the storm (every 2H 35M), then interact with the whirlpool beneath the rainbow sky islands in Sea 3 while holding the shard to summon Cthulhu.
How to summon the Cthulhu boss
Cthulhu spawns only during the storm window, which hits Sea 2 and Sea 3 every 2 hours and 35 minutes and lasts exactly 10 minutes. In Sea 3, that storm also opens a whirlpool under the rainbow sky islands, and that whirlpool is your summon point.
Once summoned, the fight does not run on the usual 20-minute despawn timer that other bosses use. Cthulhu roams the sea until it is killed, so the encounter stays live even if you regroup.
Cthulhu boss behavior and stats
Cthulhu is a Level 10,000 boss with two health bars, and it changes its skillset when it enters the second form. It moves in a set pattern until a player gets close, then commits to combat.
| Trait | Detail |
|---|---|
| Level | 10,000 |
| Health bars | Two lives, with a new skillset on the second form |
| Movement | Roams in a square pattern |
| Aggro | Stops and fights when a player enters its range |
| Reset | Resumes roaming if all players leave range |
| Despawn | No timer; stays until defeated |
Cthulhu drops
Every kill guarantees an Abyssal Eye, which feeds directly into the update’s new crafting recipes. The best rewards go to whoever deals the most damage.
| Drop | Chance / amount |
|---|---|
| Abyssal Eye | 100% |
| Legendary+ fruit (top damage dealer) | Guaranteed, 80% Legendary / 20% Mythic |
| Abyssal Haki color change | 10% |
| Levels / Gems / Cash | 5 Levels, 150 Gems, 500k$ |
New titles from the Cthulhu update
| Title | Requirement |
|---|---|
| Slayer of the Abyss | Defeat Cthulhu |
| Emperor of the Abyss | Defeat Cthulhu 10 times |
| Knight of the Stagnant Abyss | Deal the most damage to Cthulhu |
| Bearer of the Abyss | Obtain the Abyssal Haki color |
| Prismatic Monarch | Craft the Prismatic Title (130 titles + prismatic shard) |
Three older titles numbered 153, 163, and 148 are now obtainable as part of the same update.
How to craft the Dual Dark Blade and Abyssal Eye
Both new items are made at Doran the Forge. The Abyssal Eye is the new best accessory and also acts as a material for the Dual Dark Blade, so you will need multiple boss kills before you can finish the weapon.
| Dual Dark Blade requirement | Amount |
|---|---|
| Ancient Blade Relic | 20 |
| Mastery on Dark Blade V2 | 300 |
| Abyssal Eye | 5 |
| Cash | 20M$ |
Completing the Dual Dark Blade unlocks the “Bearer of the Eternal Night” title, so the weapon and its achievement confirm the craft went through.
New code: ABYSSALCTHULHU
The update ships with a fresh code, ABYSSALCTHULHU, which grants 5 Race Spins. Redeem it inside Haze Seas before it expires, since spin codes tend to rotate out between patches.
Balance changes and fixes
Alongside the new content, the patch adjusts combat rules, movement, and a few quality-of-life items, with extra attention to mobile play.
- Damage needed to earn claim credit lowered from 20% to 18%.
- Red Emperor second-phase walkspeed buffed from 50% to 100%.
- Crew members now auto ally.
- NPC stun duration in the main game cut in half.
- Stun removed from Saturn’s Ring V, and its hitbox reduced by 15%.
- Fixed Beastborne V2 speed buffs that were stacking abnormally.
- Intro added in landscape mode for mobile.
- Added a scrolling frame for the Doran NPC menu.
With the boss roaming instead of despawning, the practical takeaway is timing. Line up your Prismatic Shard before the storm hits, bring enough damage to secure top position for the Legendary+ fruit, and stack Abyssal Eye drops until you can forge the Dual Dark Blade.
