first person
On Solitaire
Helen Thorington describes Solitaire, a program for generating fiction in the same line as the projects explained by Chris Crawford and D. Fox Harrell elsewhere in this thread.
Pax, Writing, and Change
Stuart Moulthrop argues that Pax answers John Cayley's question, "What would textual instruments look like?" Moulthrop maintains that one plays this electronic text (in the manner of a musical instrument) as much as one reads it.
Fretting the Player Character
Nick Montfort argues that the contentious notion of the "player character" usefully constrains and makes possible the player's interaction with the gameworld. He considers the possibility that in interactive fiction one plays the character (like an actor plays a role) rather than playing the game.
Patterns and Shade
Carl McKinney argues that Jeremy Douglass's analysis of Shade suggests a presence/absence dynamic useful for understanding interactive fiction in general.
Enlightening Interactive Fiction: Andrew Plotkin’s Shade
Jeremy Douglass evaluates Shade within the history of interactive fiction, and considers how light is represented in the code structure of scene descriptions, arguing that "[w]ithout vision there is no agency."