You need the game library Empty Space to run this demo.  It is included in
source form, and as Debian i386 packages.  To build Empty Space from source,
you need the deveopment headers for Python 2.3, libgif, libpng, libjpeg and
libvorbisfile.

The demo, being written in Python, does not need to be compiled.  You need
version 2.3 of Python to run the demo.

