 This was on January 7th, 2012 while the author was testing user ranks, colors, and custom user labels. Realcraft is a custom (third-party) Minecraft server written in REALbasic by Jailout2000. It implements the Minecraft 1.3.2 server protocol. The server software runs headless without a GUI, it is a console/terminal-based application.
The software can be found at its GitHub repository. It is licensed under the permissive MIT license, no warranty is given of any kind, the source code was originally private/closed but was made public/opened years later after the project was abandoned.
The software is written on and tested with Microsoft Windows and Red Hat-based Linux distributions, there were no plans to support running it on Mac OS X.
The author may be contacted through GitHub if you have any inquiries about the software.
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