The HIVE (huge immersive virtual environment) is a state-of-the-art virtual environment facility on the Oxford campus of Miami University. Funded by a grant from the U.S. Army Research Office, the HIVE offers completely untethered full-body tracking of multiple users in a physical space larger than 750 square meters. Its size and functionality make the HIVE a unique facility in the research community and one of the premier facilities in the world for conducting research and demonstrating the effectiveness of immersive virtual environments.