There is now a Lojban MOO; that is, a multi user virtual environment, kind of like the old text adventure games. One of the things people are hoping to use it for is xartum, but it's not quite at that stage yet. For now, it should be considered to be in beta.
Help can often be gotten on Lojban IRC.
If you're really stuck, you can mail the MOO admin.
For general information on MOOs and MUDs and so on, see The MUD FAQ or The MOO FAQ. In particular, How Do I Connect To A MUD, Now that I'm connected, what do I do?, What common commands are used on MUDs?, What is a client? and What different clients are avialable?.
I'm assuming that this will be what most users will want to do. Please note that there is no security with this method; your password is being sent over the 'net in plain text. You shouldn't use an important password on the MOO anyways.
First, find yourself a client. If you ask Google for "windows mud client" you'll get lots of them, including lists of them. For reference, the one I picked (more or less at random, except that I wanted MCP support (don't worry about what that is unless you want to build lots of stuff)) is Trebuchet, and it's that that I'll be writing this with. They should all be about the same, though.
Download or run the installer. The installer itself is pretty simple. Start the program (should be in Start -> Programs -> Trebuchet Tk). When Trebuchet starts, it'll ask if you want it to look for updates, and (if it finds an update) if you want to update it. Say yes. Restart if necessary.
Go to File -> New World... The world name can be whatever you want, although we've been calling it things like "samxarmuj" around Lojban IRC. Host name is "mooix.lojban.org". The port is 7000. It is not encrypted. The type is "LP/Diku with GOAHEAD". Unless you already have an account, leave the player name and password blank. Leave everything else as it is. Click "Add". Go to File -> Connect World..., and select the world you just created.
You will be logged in as a guest. Commands are typed in the bottom-most part of the window. Feel free to look around, although you are limited to using English as a guest. Use the "register" command to make an account. When you've done so and have completed the registration process, go to File -> Edit Worlds... and enter your userid and password information there. Then go to File -> Disconnect World... followed by File -> Connect World... (or right-click on the box just above the typing area with the world's name in it and select Reconnect World...). You should now be logged in as the user you created.
You will probably find the experience slightly less confusing if you turn command echoing on. In TrebuchetTk this is done by going to Option -> Preferences, then the Input tab, then selecting "Echo commands to display".
Get an SSH client; I suggest PuTTY (get putty.exe from that link). The host is mooix.lojban.org, and the port is 7022. The connection type must be SSH. Log in as "moo". Look around a bit. Use the "register" command to create an account. Exit the program and restart it. Use the account name and password you just created.
First, get an SSH client. With most UNIX systems, and Mac OS X, this comes pre-installed. You'll need to use a command line (aka terminal) window to access it. The command to get an account is "ssh -p 7022 moo@mooix.lojban.org". Once you have an account, use "ssh -p 7022 [account]@mooix.lojban.org". Otherwise, follow the "Connecting With SSH In Windows" instructions above.
For the most part, the commands in English are pretty typical; see The MOO FAQ for what "typical" means in this context.
Lojban MOO Lojban Commands has a complete list of the commands available if you're interacting with the MOO in Lojban.
(very much incomplete)
This is the history of the world from the point of view of samxarmuj itself.
No-one knows what was before the Gods came and re-made the world. Blah blah blah.
The Gods ascended to conciousness beyond our own blah blah blah. Went beneath the sea, remade the world, left only ocean and a small island. (where did the people come from??)
The Gods live beneath the sea, dreaming dreams beyond mortal ken. They sometimes answer prayers, but they are both fickle and distracted by their own concerns.
Put stuff here that you'd like to see or that you know needs work.