MU Online Wiki
Everything about MU Online: the 16 classes, class quests, skill trees, jewels and the Chaos Machine, wings, maps from Lorencia to Aquilas, Blood Castle, Castle Siege and every season.
Categories

Getting Started
What MU Online is, how to begin, controls and the four core stats.
4 articles

Classes
All 16 classes of the Continent of MU and their class evolutions.
16 articles

Skills & Character Growth
Leveling, level caps, the Master Skill Tree and the Skill Enhance Tree.
4 articles

Systems
Currencies, Muun, pets and mounts, guardians, elements, abilities and MU Helper.
7 articles

Items & Upgrades
Jewels, the Chaos Machine, Excellent and Ancient items, wings and endgame gear.
12 articles

Quests
Beginner quests and the class-change quests from 2nd to 5th class.
4 articles

PvP & Events
PK rules, Gens, Castle Siege and the classic event maps.
13 articles

World
Towns, NPCs, monsters and every hunting ground from Lorencia to Sanctuary of Aquilas.
18 articles

Guilds & Social
Guilds and alliances, parties and matching, trading and personal shops.
3 articles

History & Seasons
From the 2001 Korean launch and Global MU in 2003 to Season 21.
5 articles
Recently updated
Ability Upgrades & CardsAfter the 5th class change you craft Ability Cards from Ability Crystals and slot them into the Ability Upgrade Core for Extra DMG, skill upgrades and stat options.
Acheron, Debenter, Uruk & NarsAcheron is the elemental continent reached with a Spirit Map. Its regions Debenter, Uruk Mountain and Nars hold elemental monsters and the bosses Lord Silvester and Core Magriffy.
Aida, Valley of Loren & CrywolfThe forest of Aida, the Valley of Loren where Castle Siege is fought, the Land of Trials, the frontier fortress of Crywolf with Balgass' camps behind it, and the elemental Gray Aida.
AlchemistLeah, a magic-type class who fights with transmutation, a Wand and an Elixir, and can summon extra monsters for her party to hunt. Added in Season 20.
Ancient SetsAncient items are even rarer than Excellent ones and unlock set options when you wear several pieces of the same Ancient set. Rules, bonuses and a list of sets.
ArtifactHexagon-shaped equipment with its own slot, added in Season 18. Spider Artifacts come in 7 types, are combined from fragments and upgrade to +15.
Atlans & TarkanThe sunken city of Atlans with its Hydra, the desert of Tarkan, and the high-level fields added later: Atlans of the Abyss, Scorched Canyon and the elemental Gore Tarkan.
Battle CoreA shared battle server, split into Red and Blue sides, where characters from every server meet. Enter through Ellin and play Chaos Castle (Battle) and Tormented Square (Battle).
