Case study

uo-client: reconstructing the Ultima Online 2.0.7 client

uo-client reconstructs the Ultima Online T2A 2.0.7 client in C++, including its packet protocol, MUL asset loading and isometric display. The author describes consulting the decompiled original in IDA, recording findings in its database and comparing renderer output and protocol behavior with the original. The client targets the UO Demo shard and includes a JavaScript-driven navigation bot.

Targets: Game · Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 21
Last commit: 2026-06-01
Language: C++

GitHub data as of 2026-11-10

Copy as Markdown View JSON Cite

Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: Original Ultima Online game assets are required for the asset loaders and renderer.
Scope: The UO Demo shard is the supported server.
License: The license permits noncommercial use, modification and distribution with attribution.

Cite

BibTeX

@misc{uo-client-case,
  title = {{uo-client: reconstructing the Ultima Online 2.0.7 client}},
  howpublished = {\url{https://github.com/xrip/uo-client}},
  url = {https://github.com/xrip/uo-client},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/uo-client-case/}}
}

Plain text

uo-client: reconstructing the Ultima Online 2.0.7 client. https://github.com/xrip/uo-client (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/uo-client-case/

Useful? Star Awesome REA on GitHub2.4k

About this entry

The description was reviewed against primary sources.

Report an outdated entry Suggest a translation fix

Primary sources

README.md GitHub · xrip/uo-client · Revision 2fb08c5
LICENSE GitHub · xrip/uo-client · Revision 2fb08c5