How old is this?

Found this while searching for doom source ports done in java.

http://ruinworld.sourceforge.net/

From the project description, it's supposed to eventually be a 2.5D MUD that will run in a browser. Interestingly enough, while it is NOT a doom port, it is capable of reading Doom WAD files. I can't actually play it at the moment, since the JRE isn't installed on this computer, but I haven't heard any talk about this.

2002 old.

You did ask.

Another dormant/abandoned project. BTW - Ruin.zip contains the Heretic shareware wad - nothing else.