Recomp / Preservation & revivals / Windows

XRunUO

C# Ultima Online server emulator forked from RunUO in 2005 by a former free-shard team, adding Stygian Abyss support and targeting .NET Core.

Rewrite Human-led stalled

Source code

Stars—

Commits, 30 days—

Latest release—

Last push—

Facts

Original: Ultima Online servers (1997)
Platform: Windows
Method: Rewrite
Provenance: Human-led · Repo created 2015, predates AI coding tools (GitHub) what this means
Status: stalled
Licence: GPL-3.0
Team: xrunuo
Started: 2015-07
Runs on: Windows, Linux
Needs the original: Yes: you supply your own legally obtained copy

How to get it legally

This project ships code only. Build or download it from the official repository, then supply data from a copy of Ultima Online servers you own. Recomp never links to ROMs, discs or game data.

This project was rebuilt by xrunuo. Facts last checked 2026-10-17. Suggest a correction

Sources

https://github.com/xrunuo/xrunuo

Something wrong or out of date? Send a correction.

All preservation & revivals →

Windows · 2019

accd

Assetto Corsa Competizione dedicated server

Clean-room C reimplementation of the Assetto Corsa Competizione dedicated server that unmodified clients can race on, running natively on Linux and BSD without Wine or Kunos binaries, plus a live telemetry feed.

Clean-room Not stated

Windows · 1999 · ★ 345

ACE

Asheron's Call

Server emulator for Asheron's Call, the MMORPG whose official service was shut down in 2017.

Rewrite Human-led

+1 ★ in 3 days

Windows · ★ 741

Age LAN Server

Age of Empires DE series and Age of Mythology: Retold

Local web server and launcher that lets Age of Empires Definitive Editions, Age of Empires IV and Age of Mythology: Retold host multiplayer lobbies without the official game servers.

Clean-room Not stated

Windows · ★ 33