Miguel Sicart just published a new book titled “Play Matters”.
From the back cover: “We play games, but we also play with toys, on playgrounds, with technologies and design. Sicart proposes a theory of play that doesn’t derive from a particular object or activity but is a portable tool for being–not tied to objects but brought by people to the complex interactions that form their daily lives. It is not separated from reality; it is part of it. It is pleasurable, but not necessarily fun. Play can be dangerous, addictive, and destructive”.
The homepage for this book is: http://mitpress.mit.edu/books/play-matters