This paper presents our work and research findings on developing the concept of a multi-user shared environment for culture, performance, art and entertainment. It introduces artistic concepts of multi-user spaces focusing on the notion of virtual space as stage setting and on the behaviours and interactions of people within it. The VRML based demonstrator “Murmuring Fields” presents a mixed reality shared environment installation for several users based on a decentralised network architecture and supporting external participation across the internet and in shared physical space. The notion of user representation is replaced by the notion of user enactment, treating the concept of avatar as an extended body of communication. “Murmuring Fields” presents a prototype for an information space where real space becomes the interface to the virtual enabled by an invisible and intuitive full-body interface environment. Following our goals for user embodiment and group interaction, con...