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Ultima Offline eXperiment 3 (2000 – 2015)


Ultima Offline eXperiment 3, or UOX3 for short, is a free, open-source server emulator for Ultima Online, originally created by Marcus Rating.

Below you’ll find some bulletpoints highlighting some of the work I’ve done on this project, as well as some screenshots (at the bottom).


  • Wrote scripts (in C JavaScript) for player skills, interaction with different types of objects, NPC AIs (Ex: Banker, Cowtipping, Stablemaster), etc
  • Wrote GM/Admin-scripts that made life of a server-admin and/or Gamemaster easier, such as “Remote NPC Attack” (to incite NPC to attack a specific target), “Possessing Other Characters” which allowed GMs to take over NPC characters seamlessly, “WorldBuilder – JS Edition” – an ingame tool for admins/GMs to manage their shard more easily

Server Coding:

  • Contributed with bugfixes and improvements to server code for 12+ years
  • Responsible for releasing new versions of UOX3 for 5+ years


  • Created a tool called “Xuri’s WorldBuilder”, which allowed world builders/server admins to create custom houses and decorate their world easily, and also provided quick-access to the most common GM commands and server settings

Forum Moderation:

  • Moderated UOX3 forums and provided user support for nearly 15 years

Web Administration:

  • Web administrator for both official and unofficial UOX3 sites for nearly 15 years

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