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Maintenance
10/2/2026
Scheduled Maintenance on Oct 6th, 2026
Dear Mutizens, There will be scheduled maintenance performed on all servers on Oct 6th, 2026 (UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2 hours Thank you, MU Online Team.
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Patch Note
9/29/2026
Patch Notes - Sep 29th, 2026
Dear Mutizens, Please find the latest update details for MU Online on Sep 29th, 2026. ■ MU Online 1. Server stabilization Thank you. MU Support Team
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Announcement
9/25/2026
Scheduled Maintenance on Sep 29th, 2026
Dear Mutizens, There will be scheduled maintenance performed on all servers on Sep 29th, 2026 (UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2 hours Thank you, MU Online Team.
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Announcement
9/23/2026
season 21-1 Lapidary Stone Ranking Winner Announcement (1st~3rd Week)
Greetings, Season 21-1 Lapidary Stone Ranking Eventhas ended. Thank you all forplaying MU Online and participating Lapidary Stone Ranking Event. Season 21-1 Lapidary Stone Ranking Event Winners Rank Name Points Reward 1st Week 1 Cit**** 45,000 +15 Earring of Foliage (Left or Right...
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Patch Note
9/22/2026
Patch Notes - Sep 22nd, 2026
Dear Mutizens, Please find the latest update details for MU Online on Sep 22nd, 2026. ■ MU Online [Event Starting] 1. Mastery & Mystery Event 2. Jewel Bingo Event Details [Event Ending] 1. Season 21-1 Part 3 Update event Thank you. MU Support Team
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Maintenance
9/18/2026
Scheduled Maintenance on Sep 22nd, 2026
Dear Mutizens, There will be scheduled maintenance performed on all servers on Sep 22nd, 2026 (UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2 hours Thank you, MU Online Team.
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Announcement
9/16/2026
Notice on the Deletion of Rare Item Ticket 12 during maintenance on Tue, Sep 22, 2026 UTC
Dear Mutizens, As the deletion date for Rare Item Ticket 12+ 1~4 is approaching, we would like to inform you in advance of the schedule. Once the Rare Item Tickets are deleted, you will no longer be able to claim rewards for 12+1~4. If you still have Rare Item Ticket 12+ 1~4 in your possession, pl...
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Patch Note
9/15/2026
Patch Note - Sep 15th, 2026
Dear Mutizens, Please find the latest update details for MU Online on Sep 15th, 2026. ■ MU Online [Event Starting] 1. The 23rd MU Season Pass has started 2. Maze of Dimension event has started [Event Ending] 1. Egg of Monster Event has ended [Patches & Bugfix] 1. An issue where the hunting...
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Known Issues
9/15/2026
Notice regarding 'Contract of Fury' & 'Contract Stone of Fury' bug compensation [Fixed]
Dear Mutizens, Following the Season 21 Part 1 'Contract buff and stone' update on Tuesday, July 21, 2026, we identified an issue where the damage reduction penalty was not applied correctly in hunting grounds from the Swamp of Darkness and beyond. Additionally, the damage boost effects for &lsquo...
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Maintenance
9/11/2026
Scheduled Maintenance on Sep 15th, 2026 (07:00 ~ 09:00 UTC)
Dear Mutizens, There will be scheduled maintenance performed on all servers on Sep 15th, 2026 (UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2 hours Thank you, MU Online Team.
