Ultima Online
Ultima Online (UO) is a fantasy massively multiplayer online role-playing game (MMORPG) released on September 24, 1997 by Origin Systems.
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Open-source clones (4)
Compare all 4 clonesActive
An open-source, cross-platform C# reimplementation of the Ultima Online Classic Client, functional but still under heavy development.
Platforms:WebWindowsLinux
Stars723
Updated2 months ago
LicenseBSD-2-Clause
Release2018
Active
A cross-platform, actively developed client for Ultima Online, running on Windows, Linux, and macOS.
Platforms:WindowsLinuxOSX
Stars177
Updated2 months ago
LicenseAGPL-3.0
Release2019
Active
Original game image
Original game imageA C99 reverse-engineered rebuild of the 1998 Ultima Online demo server, aiming to recreate the game as it ran in June 1998.
Platforms:Windows
Stars159
Updated2 months ago
LicenseUnknown
Release2020
Halted
A third-party 2D/3D client for Ultima Online built on Ogre3D, requiring a legal patched copy of the game; development has halted.
Platforms:WindowsLinuxOSX
Stars25
Updated4 years ago
LicenseUnknown
Release2017