The Linux version, like the Windows version, is a port of the original OS X version. It uses a bitmapped version of the Monaco font as rendered by OS X; this font, in each of 13 sizes, is stored in the fonts subfolder. To change the font size while playing Brogue on Linux, press -/+ or pgdn/pgup.
The Linux version supports a wide range of command line switches for the convenience of terminal users. It also features a curses-based "terminal mode" with 16 color ncurses based output.
The file name readme contains a complete list of available switches. Most of them are listed here:
./brogue -s seed start a game with a preset seed ./brogue -v name view a recording (.broguerec is optional) ./brogue -o name resume a saved game (.broguesave is optional) ./brogue filename resume a saved game or view a recording; the extension is required ./brogue -t run the game in terminal mode ./brogue -M skip the menu (and always start a new game) ./brogue --size number starts the game with font size number (from 1 to 13) ./brogue --scores dump the highscore table to standard output and exit immediately