ModernUO Alternatives

Apps similar to ModernUO include RunUO, which is free and open source. Other options are ServUO and Moongate. In total there are three apps like ModernUO for self-hosting, Windows, Linux and Mac.

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ModernUO alternatives page was last updated Mar 11, 2026

RunUO
1 like
RunUO is a free, open-source Ultima Online server emulator written in C#. Originally founded by Ryan McAdams in 2002, RunUO has been the foundation for countless Ultima Online shards and has contributed significantly to the UO emulation community.
Cost / License
Free
Open Source (GPL-2.0)
Platforms
Windows
Mac
Linux
Self-Hosted
Good alternative?Is RunUO a good alternative to ModernUO?
ServUO
1 like
An Ultima Online server emulator written in C# .NET.
Cost / License
Free
Open Source (GPL-2.0)
Platforms
Windows
Linux
Self-Hosted
Good alternative?Is ServUO a good alternative to ModernUO?
Moongate
Like
Moongate is modern Ultima Online server built from scratch in C# with AOT compilation for high performance and nostalgic gameplay experience.
Cost / License
Free
Open Source (GPL-3.0)
Platforms
Self-Hosted
Docker
+4
Good alternative?Is Moongate a good alternative to ModernUO?

3 of 3 ModernUO alternatives