Dev status:
Release status:

Join TazUO's discord for ideas/support/updates -> https://discord.gg/SqwtB5g95H

Check out our wiki for details on all of the changes TazUO has made for players!

This version of CUO adds grid containers and many other features to the regular CUO client

Searchable

Resizable

Scrollable

Can lock items in specific place

Quick preview for containers inside *if the client has already cached that bag*

Item scaling!

Cool down bars

Follow mode improvements

Improved journal

Nameplate healthbars

And others in our wiki

An open source implementation of the Ultima Online Classic Client.

Individuals/hobbyists: support continued maintenance and development via the monthly Patreon:
  

Individuals/hobbyists: support continued maintenance and development via PayPal:
  

ClassicUO is an open source implementation of the Ultima Online Classic Client. This client is intended to emulate all standard client versions and is primarily tested against Ultima Online free shards.

The client is currently under heavy development but is functional. The code is based on the FNA-XNA framework. C# is chosen because there is a large community of developers working on Ultima Online server emulators in C#, because FNA-XNA exists and seems reasonably suitable for creating this type of game.

ClassicUO is natively cross platform and supports:

• Browser [Chrome]
• Windows [DirectX 11, OpenGL, Vulkan]
• Linux [OpenGL, Vulkan]
• macOS [Metal, OpenGL, MoltenVK]

Or visit the ClassicUO Website

Clone repository with:

git config --global url."https://".insteadOf git://
git clone --recursive https://github.com/ClassicUO/ClassicUO.git

Build the project:

dotnet build -c Release

Everyone is welcome to contribute! The GitHub issues and project tracker are kept up to date with tasks that need work.

The code itself has been written using the following projects as a reference:

• OrionUO
• Razor
• UltimaXNA
• ServUO

Backend:

• FNA

This work is released under the BSD 4 license. This project does not distribute any copyrighted game assets. In order to run this client you'll need to legally obtain a copy of the Ultima Online Classic Client. Using a custom client to connect to official UO servers is strictly forbidden. We do not assume any responsibility of the usage of this client.

Ultima Online(R) © 2022 Electronic Arts Inc. All Rights Reserved.