How to Configure EXP Rates per Level on MU Online Server

Configuring EXP rates in a granular way — different for level ranges, maps, or time periods — is one of the most impactful adjustments to the gameplay experience on your MU Online private server. This guide covers the complete process for MuServer Season 6 (the most common in private servers), with references for Season 2/3 and Season 12+.

Understanding the EXP Architecture in MuServer

Before editing any file, it is essential to understand how GameServer calculates the EXP awarded to a character:

1. The killed monster has a base EXP value defined in the database
2. GameServer applies the global multiplier (ExpRate) configured in the .ini
3. The result is compared against the per-level experience table to determine if a level up occurred
4. Additional bonuses (VIP, events, items) are added on top

Knowing this chain, you can intervene at any point to adjust progression.

Step 1: Locate and Edit GameServer.ini

The main GameServer configuration file is located at:

GameServer/GameServer.ini

Open it with Notepad++ or any plain-text editor. Locate the [GameServer] or [Exp] section depending on your version:

[GameServer]
ExpRate=10
MasterExpRate=5
MasterLevel=400
MaxLevel=400

Parameter meanings:

Step 2: Configure Differentiated EXP per Level Range via SQL

The most powerful approach to controlling the progression curve is to directly adjust the experience-per-level table in the database. This allows the first levels to be very fast while gradually making higher levels more time-consuming.

Connect to SQL Server Management Studio and run on the MuOnline database:

-- Check the current structure of the level experience table
USE MuOnline;
SELECT TOP 20 Level, Experience
FROM LevelExperience
ORDER BY Level ASC;

To reduce the EXP required at levels 1 to 150 (accelerated early phase):

-- Reduce EXP required at the first 150 levels by 50%
UPDATE MuOnline.dbo.LevelExperience
SET Experience = Experience * 0.5
WHERE Level BETWEEN 1 AND 150;

To make levels 151 to 300 demand more effort (intermediate phase):

-- Increase EXP required at levels 151-300 by 20%
UPDATE MuOnline.dbo.LevelExperience
SET Experience = Experience * 1.2
WHERE Level BETWEEN 151 AND 300;

To make levels 301 to max significantly more challenging (advanced phase):

-- Double the EXP required for levels above 300
UPDATE MuOnline.dbo.LevelExperience
SET Experience = Experience * 2.0
WHERE Level > 300;

Step 3: Configure EXP per Monster Individually

Each monster's EXP is defined in the Monster table (or MonsterAttr depending on the version). To view and adjust:

-- List the 20 monsters with the most EXP
USE MuOnline;
SELECT TOP 20 Number, Name, Experience
FROM Monster
ORDER BY Experience DESC;

-- Increase EXP of all Tarkan monsters by 30%
-- (assuming Tarkan IDs range from 45 to 62 in your version)
UPDATE MuOnline.dbo.Monster
SET Experience = Experience * 1.3
WHERE Number BETWEEN 45 AND 62;

To identify monster ID ranges per map, check the file:

GameServer/Data/Maps/MapName.bmd

Or use this query:

-- Query monsters of a specific map via spawn table
SELECT m.Number, m.Name, m.Experience, s.MapNumber
FROM Monster m
JOIN MonsterSetBase s ON m.Number = s.Type
WHERE s.MapNumber = 9  -- 9 = Tarkan in most S6 versions
ORDER BY m.Experience DESC;

Step 4: Configure EXP per Event (Blood Castle, Devil Square)

Events grant EXP bonuses that can be configured in separate .ini files or via database tables. In standard Season 6:

Blood Castle — edit GameServer/Data/Events/BloodCastle.ini:

[BloodCastle]
ExpBonus=200
; Bonus in % added to EXP during the event
; 200 = characters earn 200% more EXP inside Blood Castle

Devil Square — edit GameServer/Data/Events/DevilSquare.ini:

[DevilSquare]
ExpBonus=150
ExpBonusPerRound=50
; ExpBonus: base bonus
; ExpBonusPerRound: extra bonus per completed round (cumulative)

Step 5: Implement Time-Based EXP (Happy Hour)

To create periods of increased EXP (e.g., weekends with 2x EXP), the cleanest approach is to use a scheduled database script in SQL Server Agent.

Create the EXP control stored procedure:

USE MuOnline;
GO

CREATE PROCEDURE sp_SetExpRate
    @NewRate INT
AS
BEGIN
    -- Update configuration variable at runtime
    -- (works on GameServers that query this table dynamically)
    UPDATE ServerConfig
    SET Value = CAST(@NewRate AS VARCHAR(10))
    WHERE ConfigKey = 'ExpRate';

    -- Log the change
    INSERT INTO AdminLog (Action, Value, ExecutedAt)
    VALUES ('ExpRateChange', CAST(@NewRate AS VARCHAR(10)), GETDATE());
END;
GO

-- Activate double EXP every Friday at 8 PM
EXEC sp_SetExpRate @NewRate = 20;  -- If base is 10, this doubles the rate

-- Return to normal Monday at midnight
EXEC sp_SetExpRate @NewRate = 10;

Batch script for automatic ExpRate switching:

@echo off
REM Script: toggle_exp.bat
REM Path: C:\MuServer\scripts\toggle_exp.bat

SET INIFILE=C:\MuServer\GameServer\GameServer.ini
SET NEWRATE=%1

REM Replace ExpRate value in ini using PowerShell
powershell -Command "(Get-Content '%INIFILE%') -replace 'ExpRate=\d+', 'ExpRate=%NEWRATE%' | Set-Content '%INIFILE%'"

REM Restart GameServer (adjust process name as needed)
taskkill /F /IM GameServer.exe
timeout /T 3
start "" "C:\MuServer\GameServer\GameServer.exe"

echo ExpRate changed to %NEWRATE% on %DATE% %TIME%

To schedule: Windows Task Scheduler → New Task → Action: toggle_exp.bat 20 (to increase) and toggle_exp.bat 10 (to revert).

Step 6: Verify and Test Your Configuration

After applying changes, follow this checklist:

1. Restart GameServer.exe to load the new GameServer.ini
2. Connect with a GM (Game Master) account to the server
3. Use the command /addexp 1000000 (or your pack's equivalent) to test that EXP is being applied correctly
4. Check GameServer logs in GameServer/Logs/ for configuration errors
5. Test with a level 1 character and verify that progression in the early levels matches expectations

-- Diagnostic query: check a character's current EXP
SELECT Name, Level, Experience, Resets
FROM MuOnline.dbo.Character
WHERE Name = 'CharacterName';

Common Troubleshooting

Problem: ExpRate changed in .ini but no effect after restart Solution: Check if another configuration file is overriding it — some packs use GameServer.cfg or Config.ini in subdirectories. Run: findstr /S /I "ExpRate" C:\MuServer\GameServer\*.ini *.cfg to locate all files containing the parameter.

Problem: Characters receive no EXP on any map Solution: Verify ExpRate is not set to 0. Also check that the DataServer service is running — without DataServer, GameServer cannot write EXP progression.

Problem: Event EXP (Blood Castle) seems identical to normal EXP Solution: The BloodCastle.ini file may not be loading. Confirm the exact path — some packs use GameServer/Data/Events/bc_config.ini or read values directly from a SQL table named EventPrize or BCConfig.

Perguntas frequentes