No, because Dwarf Fortress isn’t multi-user and doesn’t fit into the same genre. It’s neither Multi-User or a “Dungeon”/“Dimension” that is implied with the name MUD.
A MUD is a living precursor to the modern massively-multiplayer RPG, but instead of graphics on a screen you read text descriptions.
Dwarf Fortress is a management simulation game that uses ascii characters to represent things.