Stuart Moulthrop complicates the idea of self-contained games.
First Person, second section: What is Ludology? Editors Pat Harrigan and Noah Wardrip-Fruin see a disciplinary shift away from ill-advised analogies toward analyses of the gaming situation itself.
Stuart Moulthrop (re)mediates the interpretation (narrativists) vs. configuration (ludologists) debate by going macropolitical.
Chris Crawford considers Zimmerman's definitions.