MU Online Official

Terms of Service Updated Oct 21st, 2025

Dear Players, Our Terms of Service have been updated and will take effect on October 21, 2025. Key changes include: 1. Operational Policy Added Each game may have an Operational Policy detailing service use, restrictions, and sanctions. Members must review and comply with these policies, which wi...

22/10/2025

Global MU Online Operational Policy

Global MU Online Operational Policy 1.Definition of Operational Policy 2. Roles and Responsibilities of the GM 3.User Obligations 4.Policy on Misconduct and Abusive Behavior 5.Restoration Policy 6.Account Restriction Policy 7. Operational Policy for the Protection of GM Human Rights 8. Special Prov...

21/10/2025

Rare Item Ticket 12+1~4 rewards list (updated on Sep 9th, 2025) (Updated)

** Please note that the exchange item list for Rare Ticket 12+1, 12+2, 12+3, and 12+4 has been updated on Sep 9th 2025. * The latest change of the reward lists can be checked in the bottom of the current notice. * If you acquire Rare Item Ticket 12+No. (12+1 ~ 12+4), please submit a CS ticket to cl...

20/08/2024

Rare Item Ticket No. 1~7 Reward list (The latest update Oct 14th, 2025)

If you acquire Rare Item Ticket, please submit CS ticket to claim your prize according to this page. Rare Item Ticket 1 Any equipment can be upgraded by 6 exceptthe following items below, - Pentagram - Blessed Archangel Weapons - Divine Archangel Weapons - 7th or higher grade ofMastery & Lege...

14/03/2023

Patch Notes - Dec 23rd, 2025

Dear Mutizens, Please find the latest update details for MU Online on December 23rd, 2025. 1. MU Online 2) Misc. - Fixed an issue where the game crash occurs when an object disappears during a Dark Spirt attack. Regards, MU Support Team

23/12/2025

Scheduled Maintenance on Dec 23rd, 2025

Greetings, There will be scheduled maintenance performed on all servers onDecember 23rd,2025(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours Thank you, MU Support Team

23/12/2025

Patch Notes - Dec 16th, 2025

Dear Mutizens, Please find the latest update details for MU Online on December 16th, 2025. 1. MU Online 1) Event Ends - Egg of Monsters 2) Misc. - Minor bug fixes Regards, MU Support Team

16/12/2025

Scheduled Maintenance on Dec 16th, 2025

Greetings, There will be scheduled maintenance performed on all servers onDecember 16th,2025(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours Thank you, MU Support Team

12/12/2025

Patch Notes - Dec 9th, 2025

Dear Mutizens, Please find the latest update details for MU Online on December 9th, 2025. 1. MU Online 1) Event Starts * The following events have started: - The Christmas Event (Ribbon Box Drop Event & Cursed Santa Claus Event) - The Element Change Event - The Unequip Errtels wit...

09/12/2025

Scheduled Maintenance on Dec 9th, 2025

Greetings, There will be scheduled maintenance performed on all servers onDecember 9th,2025(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours Thank you, MU Support Team

05/12/2025

Update: MU Online Now Fully Compatible with Windows Defender

Hello, this is MU Online. We sincerely apologize for the inconvenience caused by recent issues where Windows Defender mistakenly flagged some MU Online files, making it difficult to run the game. This issue has now been resolved. If you are still experiencing difficulties launching the game, plea...

04/12/2025

Patch Notes - Dec 2nd, 2025

Dear Mutizens, Please find the latest update details for MU Online on December 2nd, 2025. 1. MU Online 1) Event Starts - Egg of Monsters - 23rd Season Pass - Maze of Dimensions 2) Event Ends - Mystic Gift Box X Bonus Coin Event Regards, MU Support Team

02/12/2025

Problemas Conocidos

[Notice] Window Security Misdiagnosing Issue

Dear Mutizens, Currently, we have confirmed an issue where the game cannot be executed because Windows Security is misdiagnosing a MU Online file, and we are providing this notice. We are currently investigating this issue and will do our best to inform you through a notice as soon as it is res...

02/12/2025