ModernUO

Ultima Online Server Emulator for the modern era!

Requirements

Supported Operating Systems

Required Frameworks

All Operating Systems

Windows

Development

Supported IDEs

Getting Started

• Install prerequisite requirements
• Clone this repository (or download the latest):
  • git clone https://github.com/modernuo/ModernUO.git
• Open ModernUO.sln to start developing

Building/Publishing

• Run ./publish.cmd [release|debug (default: release)] [os] [arch (default: x64)]
  • os - Supported operating systems
    • win - Windows 10/11/2019/2022/2025
    • osx - MacOS 13/14/15 (Sequoia, Sonoma, Big Sur)
    • linux - Linux
  • arch
    • x64 - Intel 64-bit
    • arm64 - ARM 64-bit (Windows Arm64 not supported)

Linux Prerequisites

Fedora, CentOS, RHEL, etc

dnf upgrade --refresh -y
# CentOS does not come with EPEL enabled
dnf install -y epel-release epel-next-release
dnf install -y findutils libicu libdeflate-devel zstd libargon2-devel

Ubuntu, Debian, etc

apt-get update -y
apt-get install -y libicu-dev libdeflate-dev zstd libargon2-dev

OSX Requirements

brew install icu4c libdeflate zstd argon2

Running the Server

• Follow the publish instructions
• Run ModernUO.exe or dotnet ModernUO.dll from the Distribution directory on the

Troubleshooting / FAQ

• See FAQ

Want to sponsor?

Thank you for supporting us! You can find out how by visiting the sponsors page.

Collaborators

Thanks

• RunUO Team & Community
• Voxpire, the ServUO Team & Community
• Karasho, Jaedan and the ClassicUO Community

Development Tools & Plugins provided with ♥ by