CrossUO is a cross-platform Ultima Online client in active development.

Current supported platforms:

• Windows 7+
• Linux
• MacOSX

Note for Linux users wanting to use X:UO Assist, Qt5 with multimedia and script support is required: sudo apt install qtmultimedia5-dev qtscript5-dev

In development:

• RaspberryPi (working, but low fps)
• Web Browser via Webassembly (in progress)

Currently CrossUO renderer is based on an old OpenGL 1 implementation that is being (slowly) fully reworked. This will enable yet more platforms and huge boost on graphical performance.

To download, go to our website for the current stable release, or else get the nightly master build here.

Please read CONTRIBUTING before doing any contribution to the project.

For instructions about building from source, read the section Compiling.