To use a specific tileset with Dwarf Fortress, you must perform the following steps:
The exact origin of the DF font is unknown. The default tilesets (640×300 and 800×600) render 8×12 and 10×12 characters respectively, with majuscule latin letters occupying a 7×9 box, and appear broadly similar to the IBM MDA font based on the shape of the '0', 'g', and 'f' characters (but with slight differences including the '0', 'W', and 'y').