The Dungeon Master is a noble that arrives to the fortress after it has reached a population of 50 dwarves. This noble typically has Animal trainer, Animal caretaker, Furnace operator, and Metal crafter skills. The Dungeon Master is responsible for enabling the armorsmith, weaponsmithing, and metalsmithing labor. In previous versions of the game, the Dungeon Master was also responsible for taming animals, however, any dwarf with Animal trainer skills can do this now.
Appointing a Dungeon Master in Dwarf Fortress is relatively easy as they have no demands. To appoint a Dungeon Master, the player must go to the Nobles/Leadership screen and select the "appoint" option for the desired noble. Once this is done, the noble will be given the role of Dungeon Master.
The Dungeon Master is an important noble in Dwarf Fortress that enables various labor and oversees the operations of the fortress. Appointing a Dungeon Master is easy as they have no demands. This makes it easier for the player to manage and maintain the fortress.