I've moved most of the Deus Ex Machina (the interactive fiction) operations to http://dem.leamonde.net.
If you still wish to join, you can do so by joining the mailing list as usual, but it is a very slow going game, and it is on its way out. Six years after Xenogears was released, people tend not to have interest in a game such as this one anymore. :) That's okay - the game's created a lot of great stories and has forged many memories in its time.
In totally different news, I have opened a web page, Scrapped Mine, at http://scrapped.mine.nu. This one is based off of the idea of dynamic, community-contributed content, so your presence is very welcome! The site talks not only about the MUCK Epheria Mys that it hosts, but also about generic anime and games.