MU Online Season 12 Servers
Season 12 is the 4th Class era: late game capstones and clearer steps from quests to raids.
Browse and filter MU Online servers
# | MU Online Servers |
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#1 | ![]() Morgana MU S12Custom[HOT STARTER GIFT]Play Morgana MU S12Custom[HOT STARTER GIFT] — Season S12 • Medium Rate (1200x) • in United States. |
S12 headline
- 4th Class unlocks capstone builds and deeper specialization.
Long tail topics we cover
- “Season 12 4th Class quest steps & requirements”
- “best S12 4th class PvE/PvP builds by rate”
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Rankings update continuously; votes reset monthly. Last Updated: August 21, 2025.