There are 6 repositories under ultima topic.
Create cross platform retro RPGs in 2D and 3D. Written in Rust.
Updated Release 27th Oct 2018 Unity based port of Ultima Underworld I and II. Download under releases
Ultima Offline eXperiment 3 - the original open source Ultima Online server emulator - v0.99.6
Underworld Adventures is a project to recreate Ultima Underworld 1 on modern operating systems, using the original game files.
Ultima Online server emulator written in C++
Old-school CRPG engine, editor and game
Engine recreation for Ultima Underworld and Ultima Underworld 2 using the Godot Engine
Map editor for ultima online
Nerun's Distro is a script for RunUO centered on the settlement of the game, using the Premium Spawner engine. Easy to use, this distro includes spawns for a 100% spawned world, and tutorials in english and portuguese.
ClassicUO - an open source implementation of the Ultima Online Classic Client. modified by project dust765
Source code for Captainsofts RPG The Terminal Angel Disease
An Ultima Online server emulator written in C# .NET, forked for the UO Serpent Isle freeshard.