notice
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Patch Note
12/9/2025
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...
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Maintenance
12/5/2025
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
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Announcement
12/4/2025
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...
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Patch Note
12/2/2025
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
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Known Issues
12/2/2025
[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...
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Maintenance
12/1/2025
Scheduled Maintenance on Dec 2nd, 2025
Greetings, There will be scheduled maintenance performed on all servers onDecember 2nd,2025(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours Thank you, MU Support Team
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Patch Note
11/25/2025
Patch Notes - Nov 25th, 2025
Dear Mutizens, Please find the latest update details for MU Online on November 25th, 2025. 1. MU Online 1) Event Starts - Jewel Bingo Mini Game - Exp Boost & Monster HP Down - Limited-Time Sales 2) Misc. - Fixed an error where Summoner cannot equip 10th Mastery Set - Fixed the end...
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Maintenance
11/21/2025
Scheduled Maintenance on Nov 25th, 2025
Greetings, There will be scheduled maintenance performed on all servers onNovember 25th,2025(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours Thank you, MU Support Team
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Known Issues
11/20/2025
Goblin Points Reimbursement and Apology Gift for Glorious Wing Box X10 Purchases
Dear Mutizens We are writing to inform you that we have completed the reimbursement of Goblin Points to all users who purchased the Glorious Wing Box X10 during the affected period as below: - Affected Purchase Time (UTC): 2025-11-14 17:20 ~ 2025-11-18 04:44 As a token of our sincere apology fo...
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Known Issues
11/19/2025
Additional Item Retrieval from abnormally obtained items from Glorious Wing Box
Dear Mutizens, We would like to provide an update regarding the issue with [GP] Glorious Wing Box X10. Currently, items that were abnormally obtained from [GP] Glorious Wing Box X10 will be retrieved in stages as outlined below: ■ Start Period for Retrieval of abnormally obtained items: 2025-11-19 ...
