MU Online Official

MUONLINE - URGENT Security Notice

Greetings MUtizens, We are aware of the ongoing critical security issue in the game and are taking immediate measures to resolve it. We offer our sincerest apologies for the disruption and inconvenience this has caused all players. The Issue at Hand: We have confirmed a security exploit that is al...

URGENT: Emergency Server Maintenance Announcement

Greetings MUtizens, Due to the critical security exploit allowing unauthorized access to GM commands, we must immediately take the server offline to implement a fix and ensure game integrity. We sincerely apologize for this inconvenience Maintenance Details Reason: To resolve the critical exploi...

Season 20 Part 1 Roulette Ranking Event Winner Announcement

Thanks for your participation in our Roulette Event

Mastery & Mystery Event has returned

Notice regarding MU Lite event end period

Dear MU Lite Players, This announcement is to formally inform you that the MU Lite event will officially conclude on, October 28th. We encourage all players to make full use of their in-game resources, including any unique items, currency, or materials acquired through the MU Lite event, before the ...

Patch Notes - Sep 30th, 2025

Dear Mutizens, Please find the latest update details for MU Online on September 30th, 2025. 1. MU Online / MU Lite 1) Event Starts * The following events has started: - Egg of Monsters event - Mastery and Mystery event -Maze of Dimension event - The 21st MU Season Pass - MU Lite Infinit...

MU Online Survey Event

MU ONLINE Survey Event Greetings, warriors of MU ONLINE! We want to invite our entire community to participate in an Survey event to help us improve the game. Your valuable feedback is essential! The survey will only take you about 2 to 3 minutes and all users who complete the survey will receive r...

Scheduled Maintenance on September 30th, 2025

Greetings, There will be scheduled maintenance performed on all servers (MULite included) onSep 30th,2025(UTC). Please refer to the following maintenance details. [Maintenance Schedule] 07:00 ~ 09:00 (UTC) - 2hours Thank you, MU Support Team

Patch Notes - Sep 23rd, 2025

Dear Mutizens, Please find the latest update details for MU Online on Sep 23rd, 2025. 1. MU Online / MU Lite 1) Event Ends - Egg of Monsters event has ended 2) Misc - Minor Bug Fixes Regards, MU Support Team

Scheduled Maintenance on September 23rd, 2025

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