CHALLENGE is a project to develop a novel therapy to aid people who suffer from auditory hallucinations, specifically, hearing malevolent voices. Khora is developing the core software to support this novel treatment. The software includes a virtual reality simulation training program and voice modulation in real time, which will enable the patient to face their malevolent voices and lessen their control over the patient’s life. The Challenge Project is a research project in collaboration with Region Hovedstaden in Denmark and funded by the Innovation Fund Denmark. The use of Virtual Reality allows exposure to challenging situations in an immersive, but also protected, flexible, and controlled environment. Exposure to auditory hallucination in real life is impossible to organize and control. With this project, we expect patients to be able to develop new skills and strategies to cope with their malevolent voices.