MU Online Season 13 — All Updates & Patch Notes
MU Online Season 13 introduced the Maze of Dimensions as a major new event, brought the first tier of Mastery Earrings, added Level 4 Wings for all characters, and opened the Swamp of Darkness as both a hunting map and boss zone. Released across four parts from October 2017 to June 2018, Season 13 also delivered 3rd Mastery Weapons, 4th Mastery Armor, a full renewal of the Skill Enhancement Tree system, and the Maze of Dimensions Renewal that reworked the event's mechanics and rewards.
What’s New in Season 13?
What is the Maze of Dimensions event?
The Maze of Dimensions is a hybrid puzzle-and-combat event introduced in Season 12 and significantly renewed in Season 13 Part 2-1. Players navigate a multi-room dungeon within a time limit, clearing monster waves and solving movement puzzles to earn event points and rewards. The Season 13 renewal reworked the room layouts, reward tables, and entry requirements. Further improvements were made in Season 16 Part 1-3. A dedicated Maze of Dimensions Helper tool is available on this site.
What are the 1st Mastery Earrings in Season 13?
The 1st Mastery Earrings introduced in Season 13 Part 2-1 were the first tier of a new accessory progression system that has expanded with every subsequent season. Each tier provides increasing stat bonuses across offensive and defensive attributes. By Season 21, the system has reached 9 tiers. Earrings are crafted through the Chaos Machine using season-specific materials.
What are Level 4 Wings in Season 13?
Level 4 Wings are the fourth tier of wing equipment in MU Online, introduced for all character classes in Season 13 Part 1-2. They provide stronger stat bonuses than 3rd Wings and require high-level crafting materials to produce. Each class has a class-specific Level 4 Wing variant. A new wing crafting method was also introduced in Season 13 Part 1-1 to streamline the production process.