Laura Cull found this fascinating reference from Deleuze's The Fold: Leibniz and the Baroque (1993) that seemed to describe the space of the game so explicitly.

The quote is given in Simon O'Sullivan's recent book 'Art Encounters Deleuze and Guattari'(2006) in the context of a discussion of the psychogeographer Ivan Chtcheglov:

"Deleuze's formulation of this 'New Baroque' reads like a parallel manifesto to the 'new' psychogeographical practices called for by Chtcheglov. Here is Deleuze: 'The extensive unity of the arts forms a universal theatre that includes air and earth, and even fire and water. In it sculptures play the role of real characters, and the city a decor in which spectators are themselves painted images or figurines. The sum of the arts becomes the Socius, the public social space inhabited by baroque dancers.' " (Deleuze in O'Sullivan, 2006: 138)