ModernUO [![Discord](https://img.shields.io/discord/751317910504603701?logo=discord&style=social)](https://muo.gg/discord) [![Subreddit subscribers](https://img.shields.io/reddit/subreddit-subscribers/modernuo?style=social&label=/r/modernuo)](https://muo.gg/reddit/) [![Twitter Follow](https://img.shields.io/twitter/follow/modernuo?label=@modernuo&style=social)](https://muo.gg/twitter) ===== ##### Ultima Online Server Emulator for the modern era! [![GitHub license](https://img.shields.io/github/license/modernuo/ModernUO?color=blue)](https://github.com/modernuo/ModernUO/blob/master/LICENSE) [![GitHub stars](https://img.shields.io/github/stars/modernuo/ModernUO?logo=github&style=flat)](https://github.com/modernuo/ModernUO/stargazers) [![GitHub issues](https://img.shields.io/github/issues/modernuo/ModernUO?logo=github)](https://github.com/modernuo/ModernUO/issues)
[![GitHub build](https://img.shields.io/github/actions/workflow/status/modernuo/ModernUO/build-test.yml?branch=main&logo=github)](https://github.com/modernuo/ModernUO/actions) [![Azure Pipelines build](https://dev.azure.com/modernuo/modernuo/_apis/build/status/Build?branchName=main)](https://dev.azure.com/modernuo/modernuo/_build/latest?definitionId=1&branchName=main) ## Requirements #### Supported Operating Systems [![Windows 10/11/2012/2016/2019/2022/2025](https://img.shields.io/badge/-server%202025-3c78d5?labelColor=222222&logo=data:image/svg%2bxml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHJvbGU9ImltZyIgdmlld0JveD0iMCAwIDI0IDI0Ij48dGl0bGU+V2luZG93czwvdGl0bGU+PHBhdGggZD0iTTAsMEgxMS4zNzdWMTEuMzcySDBaTTEyLjYyMywwSDI0VjExLjM3MkgxMi42MjNaTTAsMTIuNjIzSDExLjM3N1YyNEgwWm0xMi42MjMsMEgyNFYyNEgxMi42MjMiIGZpbGw9IiMzYzc4ZDUiLz48L3N2Zz4=)](https://www.microsoft.com/en-US/evalcenter/evaluate-windows-server-2022) ![MacOS 14+](https://img.shields.io/badge/-sonoma-222222?logo=apple&logoColor=white&labelColor=222222) [![Debian 12+](https://img.shields.io/badge/-trixie-A81D33?logo=debian&logoColor=A81D33&labelColor=222222)](https://www.debian.org/distrib/) [![Ubuntu 22+ LTS](https://img.shields.io/badge/-26LTS-E95420?logo=ubuntu&logoColor=E95420&labelColor=222222)](https://ubuntu.com/download/server)
[![Alpine 3.22+](https://img.shields.io/badge/-3.22-0D597F?logo=alpinelinux&logoColor=0D597F&labelColor=222222)](https://alpinelinux.org/downloads/) [![Fedora 42+](https://img.shields.io/badge/-44-51a2da?logo=fedora&logoColor=51a2da&labelColor=222222)](https://getfedora.org/en/server/download/) [![RedHat 9+](https://img.shields.io/badge/-10-BE0000?logo=redhat&logoColor=BE0000&labelColor=222222)](https://access.redhat.com/downloads) [![CentOS Stream 9+](https://img.shields.io/badge/-stream_10-262577?logo=centos&logoColor=white&labelColor=222222)](https://www.centos.org/download/) [![AlmaLinux 10](https://img.shields.io/badge/-10-0F4266?logo=almalinux&logoColor=white&labelColor=222222)](https://almalinux.org/get-almalinux/) [![openSUSE 15.6+](https://img.shields.io/badge/-15.6-73BA25?logo=openSUSE&logoColor=73BA25&labelColor=222222)](https://get.opensuse.org/) [![SUSE Enterprise 15 SP6](https://img.shields.io/badge/-15%20SP6-0C322C?logo=suse&logoColor=30BA78&labelColor=222222)](https://www.suse.com/download/sles/) [![Linux Mint 21+](https://img.shields.io/badge/-21-87CF3E?logo=linux%20mint&logoColor=87CF3E&labelColor=222222)](https://linuxmint.com/download.php) [![Arch](https://img.shields.io/badge/-Arch-1793D1?logo=archlinux&logoColor=1793D1&labelColor=222222)](https://archlinux.org/download/) #### Required Frameworks ##### All Operating Systems [![.NET](https://img.shields.io/badge/-10.0.0-5C2D91?logo=.NET&logoColor=white&labelColor=222222)](https://dotnet.microsoft.com/download/dotnet/10.0) ##### Windows [![VC++ Redistributable v14](https://img.shields.io/badge/-Redist%20v14-00599C?logo=cplusplus&logoColor=white&labelColor=222222)](https://aka.ms/vc14/vc_redist.x64.exe) #### Development [![git](https://img.shields.io/badge/-git-F05032?logo=git&logoColor=F05032&labelColor=222222)](https://git-scm.com/downloads) [![.NET](https://img.shields.io/badge/-%2010.0.100%20SDK-5C2D91?logo=.NET&logoColor=white&labelColor=222222)](https://dotnet.microsoft.com/download/dotnet/10.0) #### Supported IDEs

## Getting Started - Install prerequisite [requirements](https://github.com/modernuo/ModernUO#requirements) - Clone this repository (or download the [latest](https://github.com/modernuo/ModernUO/archive/refs/heads/main.zip)): - `git clone https://github.com/modernuo/ModernUO.git` - Open `ModernUO.sln` to start developing ## Building/Publishing #### Interactive Mode (Recommended for new users) Run `./publish.cmd` (Windows) or `./publish.sh` (Linux/macOS) with no arguments to launch the guided build tool. It will: - Check prerequisites (.NET SDK, native libraries) - Walk you through configuration and platform selection - Build and publish the server to the `Distribution` directory - Show deployment instructions for cross-compiled builds #### Command Line ```shell ./publish.cmd [release|debug] [os] [arch] ``` - `os` - [Supported operating systems](https://github.com/dotnet/core/blob/main/release-notes/10.0/supported-os.md) - `win` - [Windows](https://learn.microsoft.com/en-us/dotnet/core/install/windows) - `osx` - [macOS](https://learn.microsoft.com/en-us/dotnet/core/install/macos) - `linux` - [Linux](https://learn.microsoft.com/en-us/dotnet/core/install/linux) - `arch` - `x64` - Intel/AMD 64-bit - `arm64` - ARM 64-bit ## Linux Prerequisites ### Fedora, CentOS, RHEL, AlmaLinux, Rocky, etc ```shell dnf upgrade --refresh -y # RHEL-family distributions (CentOS Stream, AlmaLinux, Rocky, RHEL) need CRB and EPEL enabled. # Fedora skips this block. dnf install -y dnf-plugins-core dnf config-manager --set-enabled crb dnf install -y epel-release # Prerequisites dnf install -y findutils libicu libdeflate-devel zstd libargon2-devel ``` ### Ubuntu, Debian, etc ```shell apt-get update -y apt-get install -y libicu-dev libdeflate-dev zstd libargon2-dev ``` ## OSX Requirements ```shell brew install icu4c libdeflate zstd argon2 ``` ## Running the Server - Follow the [publish](https://github.com/modernuo/ModernUO#buildingpublishing) instructions - The `Distribution` directory is portable — copy it to your production server for deployment - Run `ModernUO.exe` or `dotnet ModernUO.dll` from the `Distribution` directory - On first run, the server will prompt you to configure game data file locations ## Troubleshooting / FAQ - See [FAQ](./FAQ.md) ## Want to sponsor? Thank you for supporting us! You can find out how by visiting the [sponsors](./SPONSORS.md) page. ## Collaborators [![Kamron Batman](https://images.weserv.nl/?url=avatars.githubusercontent.com/u/3953314&h=64&w=64&fit=cover&mask=circle&maxage=1d)](https://github.com/kamronbatman) [![Mark1145](https://images.weserv.nl/?url=avatars.githubusercontent.com/u/15312181&h=64&w=64&fit=cover&mask=circle&maxage=1d)](https://github.com/mark1145) ## Thanks - RunUO Team & Community - [Voxpire](https://github.com/Voxpire), the ServUO Team & Community - [Karasho](https://github.com/andreakarasho), [Jaedan](https://github.com/jaedan) and the ClassicUO Community

Development Tools & Plugins provided with ♥ by

## Code Signing Policy Free code signing provided by [SignPath.io](https://about.signpath.io), certificate by [SignPath Foundation](https://signpath.org). This program will not transfer any information to other networked systems unless specifically requested by the user or the person installing or operating it ### Teams & Roles Approvers & Committers: [Development Team](https://github.com/orgs/modernuo/teams/development-team)