It is a simple race game for x windows
Click on the image to download it
I put it sourceforce, because i might develop more open source in the future.
It is therefore, licensed unther the GPL ( gnu general public license ).
As you might see, it is a very simple game, written in C, and uses no api's like GTK+ or Qt.
It uses the XLib library.
Therefore, if you want to develop simple XLib software you might use the source as an example.