It is a system which brings together the characters of the Blue.muonline.co.kr and muonline.co.kr servers in a single central server where there will be a great variety of competitions which will proceed to define the strongest on a daily basis.

NPC "Elin"

located at Loren Market (113, 132)

1. BATTLE CORE

A Battle Continent for the heroes of MU !!
The characters of the Servers (Blue.muonline.co.kr and muonline.co.kr) can make their request for admission to the NPC "Elin" to enter the central server.

Central Server and Simultaneous Connection
The character can use an advanced option to be able to simultaneously access the normal server and the central server with the same account.

The strongest
In Season 9 Episode 1 the (Chaos Castle the Fittest) and (Tormented Square Champioship) are running on the central server.

NOTE: A wide variety of events and content will be added in future updates.

2. BATTLE CORE Configuration

1). Admission Application and Admission Cancellation

-During the notification period you can apply for admission to the NPC "Elin".
-Characters of any level can request admission.
-Only 2 characters per account can apply admission.
-The application for admission is possible once a day.
-The character who is requesting admission will not be able to use the Personal Store and Trade, after canceling the admission he will be able to use the Personal Store and Trade again.
-The character who cancels the application for admission will remain registered in a database for future re-registration and thus can access the central server again.
-The characteristics of the character will be updated (Server transfer, Character transfer, Character name change) the score obtained in the central server will start.

2). Character update

Entry of the requesting character to the central server will be possible for 3 minutes.

3). Characters on the Central Server

-The characters that enter the Central Server will be paid 2,000,000,000 Zen.
-Within the Central Server the following functions will be deactivated, (Trade, Personal Store, Mu Item Shop, Mu Helper).
-Some NPCs for the purchase and repair of items will be available which will cost (1 Zen to purchase) and (1 Zen to repair items).

4). Community Settings

-E-mail and Chat functions are not available within the central server.
-The Wisper functions can be used on server characters only.
-The creation of a guild, the union even Guild, the creation of an alliance, the union even gens and the withdrawal of a gens are not available within the central server.

5). BATTLE CORE NPC

BATTLE CORE NPC "Elin" located in Loren Market

6). BATTLE CORE Chaos Castle (General)

-Within the central server you can participate in Chaos Castle the Fittest.
-Chaos Castle the Fittest has the same normal server login process.
-The item "Armor of Guardsman" required to enter Chaos Castle the Fittest is sold at NPC Bolo and Christine.
-When entering the central server, the score achieved in the Chaos Castle the Fisttest is accumulated in the character's record.
-Unlike the traditional Chaos Castle reward, it will be paid to the NPC "Elin".
-The reward for Chaos Castle the Fisttest will be announced separately.

Chaos Castle score

Chaos Castle hours

7). BATTLE CORE Reward

-The reward earned on the central server will be paid by the NPC "Elin"
-Before entering the central server you can pay the rewards.
-At the end of each day there will be a winner.

BATTLE CORE Hours

Hours may change every month.