This report introduces virtual reality (VR) technologies and identifies the challenges artists and the cultural heritage sector face in achieving the long-term preservation of artworks which make use of them. This report is intended to inform those interested in the preservation of VR artworks, particularly time-based media conservators, as to the components they are likely to receive when acquiring VR artworks, their characteristics and dependencies, and their vulnerability in terms of long-term preservation. The report concludes with recommendations for artists and institutions who are dealing with the immediate problem of caring from VR artworks, and with recommendations for further research.