Developed at the Technology Department of the Culham Centre for Fusion Energy, the VORTEX software combines virtual reality with radiation transport calculations in order to accurately determine the total dose to operatives and equipment during maintenance tasks in radiation environments. Used in a fission or fusion plant environment, VORTEX will enable the detailed planning of such tasks with a view to minimizing the exposure of the workforce. The software has the potential to be used in a variety of demanding environments, including those outside of the nuclear sector, such as space, high energy physics or healthcare.