These snapshots are generated using recent source code updates. Some bugs that were present in the previous release have been fixed in these builds.
You will need Ultima IV for DOS, it is not included with the snapshots.
Ultima IV for DOS is required to play xu4. Ultima IV for DOS is not included in any of the binary or source downloads. The Ultima IV Graphics upgrade upgrade is optional, and can be downloaded below. For best results, unzip the following into a ./ultima4 directory. Depending on your system, there are a variety of appropriate locations, the simplest being wherever the xu4 executable resides.
Downloads are hosted with SourceForge.net. If you have a supported system, you can download the appropriate binary archive. If you have another system, download the source and read the README file for build directions.
Please let us know if you successfully port xu4 to a new platform!
The Module Tools archive contains the programs needed for users to create their own modules. The SDKs are for developers who want to re-compile the game.