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Patch Note
9/8/2026
Patch Notes - Sep 8th, 2026
Dear Mutizens, Please find the latest update details for MU Online on Sep 8th, 2026. ■ MU Online [Event Starting] 1. Castle Siege event on Idavoll Server 2. Egg of Monster Event has started [Event Ending] 1. Bonus W coin max 30% promotion will end as of Sep 8th. Previoulsy announced Bonus Wcoin...
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Known Issues
9/2/2026
[Notice] Bonus Coin UP Event Schedule Correction & Reminder
Dear MUtizens We would like to inform you that there is an incorrect date displayed in the previously announced Bonus Coin UP Event banner from Season 21-1 3rd Update [LINK]. The event end date has been corrected as follows: Event Period Correction Incorrect: 2026.09.01 After Maintenance ~ 2026.0...
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Announcement
7/21/2026
Notice Regarding Speed Server Plus Content (26/08/25 ~ 27/01/12)
Dear MUtizens, We would like to express our sincere gratitude to everyone who participated in the Speed Server. To support players who continue their journey on the main server after transferring from the Speed Server, we have prepared a special "Speed Server Plus" event. Through the "Speed Server...
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Announcement
6/9/2026
[Notice/EN] Notice on the formal enforcement of KWS for Users in Brazil
Dear Mutizens, The KWS (Kids Web Service) service has been officially implemented to comply with Brazil’s Child and Adolescent Statute (ECA) and to provide services optimized in line with local regulations. Accordingly, users accessing from Brazil who have not completed age verification will...
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Announcement
6/9/2026
[Aviso/PT] Implementação oficial do KWS para usuários no Brasil
Olá, somos a Equipe de Operações de MU Global. O serviço KWS foi oficialmente implementado com o objetivo de cumprir o Estatuto da Criança e do Adolescente (ECA) do Brasil e oferecer serviços otimizados de acordo com as diretrizes locais. Dessa forma, os u...
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Announcement
3/31/2026
[Notice-EN] Increase in Service Age Rating for Brazil and Introduction of KWS Verification (Edited)
Hello, this is the Global MU Operations Team. To comply with Brazil's Child and Adolescent protection law (ECA) and provide a service environment optimized for local guidelines, the minimum age rating for service access in the Brazil region will be raised to 18 years of age or older. Accordingl...
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Announcement
3/31/2026
[Aviso-PT] Elevacao da Classificacao Etaria do Servico no Brasil e Introducao da Verificacao KWS (Editado)
Ola, somos a Equipe de Operacoes de MU Global. Com o objetivo de cumprir o Estatuto da Crianca e do Adolescente (ECA) do Brasil e fornecer um ambiente de servico otimizado de acordo com as diretrizes locais, a classificacao etaria minima para utilizacao do servico na regiao do Brasil sera elevad...
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Announcement
3/10/2026
Atualizações aos nossos Termos de Serviço e Política de Privacidade (Data de vigência:24 de março de 2026)
Em conformidade com o Estatuto Digital da Criança e do Adolescente do Brasil (“Digital ECA”), as seguintes atualizações serão aplicadas apenas aos usuários que acessarem o Serviço a partir do território brasileiro: • Serviço ...
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Announcement
10/21/2025
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...
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Announcement
8/20/2024
Rare Item Ticket 12+1~4 rewards list (updated on Aug 11th, 2026) (Updated)
** Please note that the exchange item list for Rare Ticket 12+2, 12+3, and 12+4 has been updated on Aug 11th 2026. * 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+2 ~ 12+4), please submit a CS ticket to claim y...
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Known Issues
9/2/2026
Client Crash Fix: Missing or Corrupt Wing Files
Greeting, Mutizens We have encountered an issue where players experienced game crashes due to missing or corrupted files (Wing_Amulet_white.bmd and Wing_Amulet_green.bmd), and we have now successfully fixed the cause. To ensure the issue is completely resolved on your system, you must completely un...
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Known Issues
9/2/2026
[Notice] Bonus Coin UP Event Schedule Correction & Reminder
Dear MUtizens We would like to inform you that there is an incorrect date displayed in the previously announced Bonus Coin UP Event banner from Season 21-1 3rd Update [LINK]. The event end date has been corrected as follows: Event Period Correction Incorrect: 2026.09.01 After Maintenance ~ 2026.0...
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Known Issues
9/1/2026
Notice regarding Group Boss Battle Event in Swamp of Destruction (FIXED Sep 8th)
Dear MUtizens, We have identified an issue where the Group Boss Battle Event in Swamp of Destruction cannot be entered. We are currently investigating the cause of the issue. Until a fix is applied, we kindly ask that you enter the Group Boss Battle in other maps. We sincerely apologize for ...
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Known Issues
8/12/2026
Notice regarding Goblin Point Roulette's 'Contract Stone of Fury'
Dear MUtizens, We have identified an issue in the Goblin Point Roulette where the reward 'Contract Stone of Fury x10' was being incorrectly issued as 'Contract Stone of Fury +1 x10', which prevented it from being registered for auto-buffs in the MU Helper. Resolution Details Fix Applied: - We h...
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Known Issues
8/12/2026
IMPORTANT: Dimensional Roulette Event Issue Regarding 200,000 Ruud Box (FIXED)
Dear MUtizens, We have identified an issue in the global MU Dimensional Roulette Event where users who obtained the 200,000 Ruud Box as a reward and opened it from their inventory did not receive the Ruud properly. Issue Resolution & Compensation Details - Compensation: A fix will be implemen...
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Known Issues
8/5/2026
Notice regarding Ruud per Master Level in Speed Servers (resolved)
Dear Mutizens, We would like to inform you that we have resolved the issue related to the Ruud rewards granted per Master Level on the Speed Server. - Affected Time (UTC): 2026-08-04 07:20 ~ 2026-08-05 07:00 (UTC) We have individually sent the corresponding Ruud rewards to each user's Storage, ...
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Known Issues
7/31/2026
[Notice] Update on Season 21 Part 1 Speed Server Pre-Event Announcement
Greetings Mutizens, We would like to inform you that the Level UP Rewards info on the Season 21 Part 1 Speed Server Pre-Event page has been updated. The "350,000 Ruud" previously displayed on the pre-event page has been changed to the new, official rewards. The actual and accurate rewards for the ...
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Known Issues
7/22/2026
Notice regarding the disconnection of Speed Server 2 Channel 9 (Resolved)
Dear MUtizens, Our team confirmed an issue with the Speed Server 2's Channel 9. As the other channels are operating normally, we ask that you please use one of them until the issue is resolved. The team is currently working on the issue and we kindly ask for your patience as we resolve this. Once ...
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Known Issues
7/21/2026
Issue regarding incorrect in-game banner (Resolved)
Dear Mutizens, We would like to inform you about an issue that was identified following the recent maintenance. Issue Details: An outdated in-game banner is currently being displayed incorrectly, containing past events' information. This in-game banner issue will be corrected during next week&r...
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Known Issues
2/11/2026
Issue regarding guilds name disappearance in Helheim server (resolved)
Dear Mutizens, We have confirmed an issue where all the guilds from Helheim disappeared. Please note that this issue above has been fixed on February 11th, 02:06 (UTC). Weapologize for the confusion and any inconvenience it may cause. Best regards, MU Support Team
