Enter into the Endless Possibility!

Hello, Admirals.

Here are the changes that will be made during the 3/11 scheduled maintenance.

※ Please note that the announcement details and schedule may be subject to change during development.

※ All schedules mentioned in this notice follow the UTC+9 time zone.

[Event] Doom Breaker Collaboration Event

■ A collaboration event between the webtoon Doom Breaker and Uncharted Waters Origin will be held.

✔️ Start Date: After the maintenance on 3/11 (Wed) (UTC+9)

✔️ End Date: 4/7 (Tue) 23:59:59 (UTC+9)

* Detailed information about the event will be provided in a separate event notice.

■ Main Content

✔️ Collaboration Admirals and Mates

- Zephyr (Admiral)

- Anna Primrose(S)

- Altair Justina Cayenne(S)

* Available for purchase in the Shop starting from 3/25 (Wed) 00:00 (UTC+9)

- Ophelia Amleth(S)

* Available for purchase in the Shop starting from 3/25 (Wed) 00:00 (UTC+9)

✔️ Doom Breaker Collaboration Admiral Chronicles

- An Admiral Chronicles featuring Zephyr, the hero of Doom Breaker.

- Even if Zephyr is not in your fleet, you can first proceed with the Prologue of the Chronicles at the Requests Guild in each city.

- After completing the Prologue, Zephyr must be owned to proceed with the remaining Admiral Chronicles.

- Even after the collaboration period ends, if you own Admiral Zephyr, you can still proceed with the Prologue, which is the prerequisite for the Chronicles, at the Requests Guild.

✔️ Doom Breaker Collaboration Event Rare Requests

- Rare Requests that provide materials for the event Production Recipe.

- Quest List: Ophelia's Dance (Combat)

✔️ Doom Breaker Collaboration Event Repeat Requests

- Repeat Requests that provide materials for the event Production Recipe, limited to once per day during the event period.

- Available after completing the event Rare Request "Ophelia's Dance".

- Quest List: Poisonous Pirates (Combat), Anna's Intuition (Adventure), Altair's Ability (Trade)

✔️ Event Production Recipe

- A limited-time Production Recipe (Fade's 72 Lethal Poison Recipe) will be added.

- Medicines that grant Adventure, Combat, and Trade effect buffs can be produced.

* Medicines are Consumables that can be used together with Cooking.

- Recipe List: No.32 Asmodeus / No.61 Zagan / No.68 Belial of Agony

✔️ Doom Breaker Collaboration Products Added

- Character-specific Exclusive Gear

- 3 types of Ship Appearance Parts

- 1 Doom Breaker Collaboration Appellation

* Detailed information about the products will be provided in a separate product notice.

[Event] 3.5th Anniversary Event

- The 3.5th Anniversary (Great Journey) event begins.

■ Start Date : 03/11(Wed) After Maintenance (UTC+9)

■ Main Events

- Build Festival : Ships up to Rank 25 can be built at the Shipyard in each nation's capital and Santa Island

- Inn Festival : Increased banquet occurrence rate for various sailors at the Inn on Soda Island

- Mission of the Great Journey : A mission board for growth that runs for 7 days

- Daily Event : Various content available daily by week

* Detailed information about the event will be provided through a separate event notice.

[Ship] Ship Inscription Feature Added

- Ship Inscription allows selected effects to be applied with a set probability by consuming Currency on Extra Large Golden Ships.

- Ship Inscription has been added to Tier 26 Golden Ships and Season Reward Ships.

- Ship Inscription is applied per Ship.

* More details will be introduced in the “🐥GM Guide: Ship Inscription” after the maintenance.

■ Ships Available for Inscription

■ Effect Selection

- Effects must be selected to proceed with Ship Inscription.

- 5 effects are selected based on a set probability from the effects owned by each Ship.

- There are two selection methods: Single Selection and Consecutive Selection, and Ducat is consumed to perform the selection.

- Consecutive Selection can only be used after registering a Preference Effect.

■ Preference Effect

- Up to 5 desired effects can be set among the Inscription Effects owned by the Ship.

■ Convert Effect

- The Inscription Effect of the Ship is converted into one of the selected effects.

- If an already applied Ship Inscription is changed, the previously applied Inscription Effect will be removed.

[Enhance] Enhance Removal Feature Added

- The Enhance Removal feature has been added.

  * Location: Menu > Enhance > Part Enhance Removal / Gear Enhance Removal

- The enhancement level of enhanced Parts/Gear can be separated and transferred to other Parts/Gear.

  * The enhancement level of Parts cannot be transferred to Gear.

  * The enhancement level of Gear cannot be transferred to Parts.

- When performing Enhance Removal, Enhancing Material, Enhance Removal Scroll, and Currency will be consumed.

- If Enhance Removal succeeds, the enhancement level of the Gear and Parts used as materials will be reset to Level 0.

- If Enhance Removal succeeds, Enhance Scrolls corresponding to the enhancement level of the Gear and Parts used as materials will be obtained.

  * The scrolls will be given in Storage > Tool > Consumable.

- Enhance Scrolls obtained after Enhance Removal can be used for Part/Gear Enhance.

  * To proceed with Enhance using Enhance Scrolls, you must change the type of consumed Material to Enhance Scroll through the Material selection in the Enhance UI.

[Enhance] Enhance Location Changed

- The location of Enhance, previously available at the Item Shop and Shipyard, has been moved to Menu at the top-right of the main game screen.

* The Enhance menu has been removed from the Item Shop and Shipyard, and enhancement can no longer be performed there.

[Guild] Guild Effect Added

- Effects that can be learned in the Guild Effect will be added.

■ Adventure

■ Trade

■ Combat

[Special Combining] Special Combining Rerun Added

- El Dorado, Spiritual Jade : 2026/03/11(Wed) After Maintenance ~ 2026/04/07(Tue) 23:59 (UTC+9)

- Luminous Halo, Cloud Minister, Blue Sky : 2026/04/08(Wed) 00:00 ~ 2026/05/06(Wed) 23:59 (UTC+9)

- Verdant, Galaxy : 2026/05/07(Thu) 00:00 ~ 2026/06/04(Thu) 23:59 (UTC+9)

[Combat] April 2026 Lighthouse of the Ruins Added

- The March Lighthouse of the Ruins ends at 03/31 23:00, and a new Lighthouse of the Ruins begins from 04/01 00:00 to 04/19 23:00.

- Progress and rewards will be reset, and some sea areas can be cleared through Repel depending on previous progress.

* The April Lighthouse of the Ruins will be suspended from 04/19 23:00 due to server integration, and the Rank 1 Appellation will not be awarded.

[Discoveries] New Discoveries Added

- 8 new Discoveries have been added.

[Adventure Note] New Adventure Note Added

- A new Adventure Note, Ruler of the North, has been added.

- If you complete the Adventure Note: Ruler of the North during this season, you can obtain the season-limited reward 100 Tome of Transcendence.

[Equipment Collection] New Equipment Collection Added

- A new Collection, Ruler of the North, has been added.

- Collection Effect: Exploration OBS +0.15

[Investment] Investment Season 5 Final Reward Added

- The final rewards for Investment Season 5 can be checked in the announcement notice and the in-game season ranking screen.

[Remote Investment] City One-Stop Investment Feature Added

- The One-Stop Investment feature for cities has been added.

- It can be used when the Remote Investment buff is active.

* When using the City One-Stop Investment feature, Investment Certificates are not used and Ducats will be consumed. (Added on 3/11 15:30 (UTC+9))

[Barter] Batch Negotiation Feature Added

- A Batch Negotiation button has been added to the Barter Negotiation popup.

[Land Exploration] Land Exploration Memory Load Improved

- The memory load for Land Exploration has been improved.

- The UI displayed during Consecutive Exploration has been changed.

[UI] UI and Feature Additions

- A Market sale guide UI has been added when cargo exceeds the maximum Cargo capacity.

- A Disguise hide feature has been added.

· A function to hide Disguise that can no longer be obtained has been added to the Disguise list.

· Disguise that you own will remain visible in the list without changes.

[Auction] Auction Minimum Price Cost Improved

- The minimum price cost in the Auction for enhanced Gear and Parts has been improved.

■ Parts

■ Gear

[Beginner] Additional EXP Effect by Fleet Level Adjusted

- The additional EXP provided according to Fleet Level has been increased.

[Product] New & Returning User Package Improvement Notice

- Sales of First Voyage Package 1–5 will end, and improved New User Packages will be released after the 3/11 update.

- Sales of Returning User Package 1–5 will end, and improved Returning User Packages will be released after the 3/11 update.

[Item Shop] Cologne's Bill Chest Removal Notice

- The Cologne's Bill Chest item purchasable in the Item Shop is scheduled to be removed during the April regular maintenance.

* Using Cologne's Bill Chest allows you to obtain Clan's Gold Bill.

* Clan's Gold Bill is an item exclusive to Investment Season 5, and it will have no other use after the season ends.

- Investment Season 5 ends on 2026/04/05(Sun) 23:59 (UTC+9).

   Please make sure not to purchase Cologne's Bill Chest after the season ends.

[Chronicle] Fixed an issue where unnecessary dialogue repeatedly appeared when entering buildings in Admiral Dana Kalos’ Chronicle

[Mock Battle] Fixed an issue where an error popup appeared when entering Mock Battle

[Convenience] Adjusted the number of right-side guide banners displayed

 - The number of right-side guide banners displayed has been limited to a maximum of 3.

[Request] Fixed an issue where some portraits were not displayed when entering the Request dialogue log

[Achievement] Improved the description of the completion condition for the achievement “The Giving Tree”

 - The completion condition description for the achievement “The Giving Tree” has been clarified.

[Request] Fixed an issue where Request items could still be added to the cart through “Add Request Items at Once” even after purchasing the required quantity

[Trade] An issue where Trade Event notifications appeared in undiscovered cities even after discovering all cities

[UI] Fixed an issue where the number displayed next to the Growth Available checkbox in the Sailor menu only showed the number of promoted sailors

[Fishing] Fixed an issue where Gaejuri and Wels Catfish did not appear during certain seasons

[Barter] Fixed an issue where Affinity was occasionally displayed incorrectly during Barter

[Ship] Fixed an issue where ship construction occasionally failed after displaying the message “The required time does not match.”

[Trade] Fixed an issue where Boom and Surplus occasionally occurred simultaneously

[Ship] Fixed an issue where an error popup appeared when changing the ship assignment of Golden Enhanced Amity

[Trade] Fixed an issue where the Tariff shown in the Owned Trade Goods Recommendation tab did not match the actual tariff

[Adventure] Fixed an issue where the Rare Request in the Northern Sea Alliance Competition Adventure Event did not appear

[Returning User] Removed the Fleet EXP Buff from the Returning User Package

[Discoveries] Improved an issue where Discoveries were not displayed when discovery conditions were not met during Land Exploration

 - The conditions for discoveries that require specific requirements during Land Exploration will now be displayed.

◆ Tap the coupon image to move to the coupon entry page.

The update schedule and details may be subject to change, and we will inform you if any changes occur.

Thank you.