These emulators offer various levels of customization, stability, and support, allowing you to create and run your own MU Online private server.
Website: https://www.igcn.mu
Description: A highly customizable emulator with a range of features and support for the latest MU Online versions.
Website: https://github.com/MUnique/OpenMU
Description: OpenMU is an extendable and customizable server emulator primarily focused on Season 6, Episode 3 of MU Online. It's written in C# for .NET 8.0 and offers an admin panel hosted on an embedded ASP.NET Core web server.
Website: https://github.com/Yomalex/MuEmu
Description: MuEmu is a C# implementation of a MU Online server emulator, compatible with multiple client versions, including Seasons 6, 9, 12, 16, and 17. Developed using .NET Core 3.1 for cross-platform compatibility.
Website: https://github.com/mikiones/MuOnline
Description: A Java-based server emulator for MU Online, originally based on OpenMU. It provides an alternative approach for creating and running private servers.
More related stuff : MU Online private servers, MU Online FAQs