This paper describes the NICE project, an immersive learning environment for children implemented in the CAVE and related multi-user virtual reality (VR) technologies. The NICE project provides an engaging setting where children construct and cultivate simple virtual ecosystems, collaborate via networks with other remotelylocated children, and create stories from their interactions in the real and virtual world. 1 Introduction The NICE project [10, 11] is an effort to build Narrativebased,...