Façade

"Façade comes closer than any digital literature work thus far to realizing a long-held dream, which is the creation of an interactive, animated fiction that can accept any type of language produced by the user and assimilate it into the outcome of the narrative. Even aside from limitations in graphical rendering (it's only with the most recent 3rd-generation consoles that facial expression has come close to that of 3D film animation) and language parsing (which requires huge, exhaustive databases of human language usage), Stern and Mateas end up confronting a number of interesting narratalogical issues such as the conveyance of sure 'plot points' in an open-ended, completely fluid fictional structure. The depths of Façade become clear with repeated plays, as micro-narratives emerge from the various interactions that the often hapless protagonist — namely, you — has with his or her divorce-bound hosts." -- from Electronic Literature Collection, Volume Two