Welcome to the Moo Classic Wiki!
The progressive classic MU Online wiki: enhanced and rebalanced
The encyclopaedia of Moo Classic, the progressive classic MU Online server: Season 0 first, then Season 1 and 2. Every drop chance, price, spawn and mix here is read straight from the game server, so what you read is what the game does.
- Pages: 793
- Items: 425
- Monsters and NPCs: 295
- Maps: 40
- Guides: 23

Moo Classic is live!
Moo Classic is progressive classic MU Online: it starts at Season 0 and grows season by season, enhanced and rebalanced, with new endgame content on the way. Five classes, Blood Castle, Devil Square, Chaos Castle and Kalima at a 1x experience rate, on our own client: play on your phone or computer, or right in your browser.
New player guide • Classes and builds • Where to train • About Moo Classic
Popular pages
New in Moo Classic
Maps, lore and tools the original never had. Read about all of it.
Where to train
From the monster levels in the game. The tag says which season brings the maps: Moo Classic opens at Season 0 and grows into Season 1 and 2. See the Bestiary for every monster.
Announcements
- 24 October 2026
- The Moo Classic Wiki opens: 793 pages, every drop rate read from the game server.
- 24 October 2026
- In the game, the D window's Look up button opens any item, monster or NPC here.
Server info
Progressive classic: Season 0 first, then Season 1 and 2 (no Summoner), enhanced and rebalanced, new endgame content on the way.
Classes
Plays on
What makes Moo Classic special
Our own client, built from scratch: the phone layout, the browser game, the wiki and /ask in the game, the redesigned D window and MU Helper.›























