MU Online Official

notice

• Patch Note

  Patch Notes - Apr 21st, 2026

  Dear Mutizens, Please find the latest update details for MU Online on Apr 21st, 2026. ■ MU Online [Event Starts] 1. 2026 Speed Server has started. [Event Ends] 1. Egg of Monsters 2. 2026 Spring Festival 1) Collect Your Blossom 2) EXP Boost Event 3) Spring Sales 3. Chaos Goblin's Bomb Package Sale...

  4/21/2026
• Announcement

  [11:50 Open] Scheduled Maintenance on April 21st, 2026 (01:00~12:00)

  Greetings, There will be scheduled maintenance performed on all servers onApril 21st,2026(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 01:00 ~ 09:00 11:00 11:30 12:00(UTC) - 11hours *The website is now open. *Game server maintenance has been extended until 12:0...

  4/17/2026
• Announcement

  [Edited] Emergency Server Maintenance Announcement

  Greetings MUtizens, Emergency server maintenance is scheduled to fix an issue where the login screen does not appear after selecting a server. We sincerely apologize for the inconvenience. ■ Maintenance Schedule: April 16, 2026, 03:20 ~ 04:20 04:50 ※ The server opened at 04:25 ■ Maintenance De...

  4/16/2026
• Announcement

  Notice Regarding an Issue Preventing Game Reconnection

  Hello, We are currently investigating an issue where players are unable to reconnect after exiting the game. On the server selection screen, the login screen does not appear, preventing reconnection. Players who are already connected can continue playing normally; however, once you log out, you wi...

  4/16/2026
• Patch Note

  Patch Notes - Apr 14th, 2026

  Dear Mutizens, Please find the latest update details for MU Online on Apr 14th, 2026. 1. MU Online 1) Event Starts - 2026 Speed Server Pre-event Regards, MU Support Team

  4/14/2026
• Announcement

  Scheduled Maintenance on April 14th, 2026

  Greetings, There will be scheduled maintenance performed on all servers onApril 14th,2026(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours * During the maintenance event inventory will be reset Thank you, MU Support Team

  4/10/2026
• Announcement

  Season 20 Part 2 Roulette Ranking Event Winner Announcement

  Thanks for your participation in our Roulette Event

  4/10/2026
• Patch Note

  Patch Notes - Apr 7th, 2026

  Dear Mutizens, Please find the latest update details for MU Online on Apr 7th, 2026. 1. MU Online 1) Event Starts - 2026 Spring Festival (EXP 30% / Monster HP 20% Down) - Egg of Monsters 2) Event Ends -Season 20-2 3rd Update Event 3) Misc - Event inventory Reset 4) Bug Fix - Fix...

  4/7/2026
• Announcement

  Notice of Upcoming Deletion of Unused Speed Server Items

  Dear, Mutizens We would like to inform you that any unused Speed Server-exclusive items obtained from previous Speed Server events are scheduled for deletion during the upcoming server maintenance: Maintenance date: April 7th. Regards, MU Support Team

  4/6/2026
• Maintenance

  Scheduled Maintenance on April 7th, 2026

  Greetings, There will be scheduled maintenance performed on all servers onApril 7th,2026(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours * During the maintenance event inventory will be reset Thank you, MU Support Team

  4/2/2026