A LPMUD system run by a non-profit organization called Balanced Alternative Technologies ry, Finland.

One of the oldest LPMUDs in existence. Named after the first host it ran on (The machine was called batman.cs.hut.fi). The organization was formed in Tampere, the MUD runs in Helsinki University of Technology (HUT).

BatMUD is located at bat.cs.hut.fi, port 23. Web page is at <URL:http://www.bat.org/>.