To use the given Lisp files, in SSH terminals (where n$ refers to the nth SSH terminal): 1$ alisp -L 3dttt.lisp -L spot.lisp 1$ (3dttt:connect) 1$ (3dttt:login 'spot) 2$ alisp -L 3dttt.lisp -L spot.lisp 2$ (3dttt:connect) 2$ (3dttt:login 'fluffy) 2$ (3dttt:play-game 'spot) 1$ (3dttt:play-game 'fluffy) After a short period of time, the computation will end. Before evaluating the (3dttt:play-game ) functions, try, in either terminal, 1$ (3dttt:list-players) You can also telnet in, and watch the game in text mode.