Welcome to UO Developers - Sphere/RunUO

This group is dedicated to the development of Ultima Online servers running on RunUO and SphereServer. If you are a developer are intersted in contributing to an existing project feel free to join!

This project is primarily focused on the first successful, and most popular, Unofficial (non-Origin) Ultima Online server that was open Free to the public and non-subscription based: Novus Opiate Secrolium (NOS) which ran on the Sphere 55i server emuator.