Based on my experiences and ad hoc research as a game designer/developer, this version was intended primarily for software application designers of all stripes. 

What you will find here began as a transcription of Seductive Interfaces -- Engaging, Not Enraging the User, a one-hour talk I gave to approximately two thousand attendees at the Microsoft Interactive Media Conference, July 20, 1995.

Although today's reader will find dated or now-irrelevant references, I believe that the core concepts still hold, and are to be found in many of today's applications.