Five-layer model
Nick Montfort is discussing my old (2002) paper Computer Game Criticism. He suggests a five-layer model as an alternative to my seven-layer model in his article Combat in Context. Still, the main point that there are several layers from which we are able to analyse videogames remains the same.

Happy New Year 2007!

I would like to point towards a recently published article about pen 'n' paper role-playing games by Joris Dormans:

On the Role of the Die: A brief ludologic study of pen-and-paper roleplaying games and their rules