IRW (Item Resource Workshop) is a comprehensive resource editing tool for Ultima Online. It provides facilities for browsing, viewing, and editing various UO client resource files including items, art, and other game assets. The archive contains over 1,000 files including the full IRW application and associated UO data files. A substantial tool for serious client-side modding.

Download#

Archived from the UO FreeShard Community Tool Box (archive.org, 2019).