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RunUO is a project to create and maintain a freely available Microsoft .NET based Ultima Online server. The goal of the RunUO Software Team is to provide software that is scalable and capable of recreating the EA Games server environment.

RunUO is licensed under the GNU General Public License GNU General Public License (GPL), and is available for download from the RunUO.com website.


RunUO started as a hobby. During the early part of 2002, "Krrios" began writing his own client for Ultima Online (a popular MMORPG). RunUO began as an aid in the client development process to simulate the actions of the Origin Systems shards. A few months later, Ryan, now the project manager of RunUO, convinced "Krrios" to concentrate more on creating a new Ultima Online server emulator.

Ryan already had experience in maintaining websites and communities from past emulation ventures. On September 25, 2002 the first release was made, RunUO Beta1. During its beta phases, RunUO was released as a closed-source project. Within nearly three years, and after 40 beta releases and many man hours, RunUO 1.0.0 was released on February 3, 2005. On June 15, 2006 a RunUO 2.0 release candidate was released, ushering in support for the latest game expansions and the new .NET 2.0 framework.

The development cycles of RunUO have slowed since the release of RunUO 1.0.0. However, development has continued. Recently, the focus has been on scalability, rather than the implementation of game play features.

On June 14, 2006 a public Subversion repository for RunUO was opened. This allows RunUO users to see the latest work being done on RunUO by the development team and submit their own patches to have features and fixes implemented in the main distribution.


RunUO is developed and maintained by an open community of developers under the guidance of the RunUO Software Team. The RunUO Software Team consists of Bryan "Zippy" Pass, Mark Sturgill, Andre "ASayre" Sayre, "Krrios", and Ryan McAdams.

See also[]

External links[]

  • RunUO.com — Forms the backbone of the RunUO emulator community and provides forums for discussion, support, and script submissions.

This article includes material originally taken from Wikipedia article RunUO. Wikipedia material is licensed under GNU Free Documentation License.