I downloaded this game some time ago but I couldn’t make it work on my Raspberry Pi; finally I did it (see below). You can find it here.
Playing this game on a Raspberry Pi
In order to play this game on my Raspberry Pi, I had to install Clozure Common Lisp as explained there. Then I decided to edit the source code of the game and to replace the following lines:
(defun get-input-char () (system::input-character-char (EXT:with-keyboard (read-char EXT:*keyboard-input*))))
(defun get-input-char () (read-char))
Then I launch the game with the following command:
stty raw -echo opost && ccl -l zombie_hack.lisp ; stty -raw echo
(where ccl is the name of my Clozure Common Lisp executable).