MU Online Season 22 — All Updates & Patch Notes
Season 22 of MU Online started on September 15, 2026. Part 1-1 reworked the stats of Dark Knight, Magic Gladiator, Slayer and Rage Fighter (with a full reset of their stats and skill trees) and split the Hunting Log into Base EXP and Bonus EXP. Part 1-2 followed on October 8 with the new Arcana Archives hunting map in Aida, a level cap raise from 1,800 to 1,850 with the Gun Crusher and Slayer Muuns as season rewards, much tougher Blood Castle gates, a stronger All Together Boss Battle boss and new Monster Soul Converter lists. Every Season 22 patch note is collected below, newest first.
What's New in Season 22?
What is the max level in Season 22?
Part 1-2 raised the cap from 1,800 to 1,850. Reaching level 1,750 gives the Gun Crusher Muun (Skill Attack Power +15) and level 1,800 gives the Slayer Muun (Elemental Defense +10). Both get 20x their basic ability for the first 30 days.
Where is the new Arcana Archives map?
Arcana Archives is an elemental hunting map deep inside Aida. You need level 1,700 to enter and the hunting penalty starts at 1,750. Get there through the Move window for 50,000 Zen or walk in from Aida at (244, 96). It is home to Specter Knight, Specter Side and Specter Sorcerer.
Which classes got stat changes in Season 22?
Part 1-1 reworked Dark Knight, Magic Gladiator (one-handed sword Knight type), Slayer and Rage Fighter. Each got a new attack option that scales with stats, several skills were changed, and their stats, Master Skill Tree and Skill Enhancement Tree were reset on September 15, 2026.