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How to edit the Main, login screen and client resolution

Customize your server's client: edit the Main, the login image, the WTF file, the accents and the screen resolution.

VI ViciadosMU Team · Updated on 29 jun 2026 · ⏱ 8 min read

The client is your server's face. Customizing the Main, login screen and resolution gives everything its own identity — but requires care, since editing the Main is sensitive.

Atenção: Always back up the Main and client files before editing. A mistake can prevent the game from opening.

Edit the Main

The Main controls connection, texts and client behaviors. Common edits:

  • Point the connection to the server's IP/domain;
  • Change texts and titles;
  • Adjust behaviors supported by the season.

Login image and start screen

The login screen is a client image. Swapping it is one of the fastest, most impactful customizations — put your server's art there.

WTF file and texts

The WTF file (and client text files) hold messages and settings. Edit them to translate/adjust texts, always keeping the original format.

Accents and resolution

  • Accents: fixed by adjusting the client's font/language files;
  • Resolution: the client has a resolution setting; adjust for modern screens (widescreen) as the season supports.
Dica: Make one edit at a time and test by opening the game. That way, if something breaks, you know exactly what caused it.

Perguntas frequentes

What is the MU Online Main?

The Main (usually Main.exe) is the client executable. It holds connection settings, texts and game behaviors. Editing it lets you customize the client.

How do I fix accents that appear broken?

Broken accents come from a client encoding/font incompatibility. It's fixed by editing the Main's font/language files to the correct standard.

VI

ViciadosMU Team

Equipe editorial do ViciadosMU — portal de MU Online no ar desde 2003.

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