In recent years, virtual reality has become a consumer product and because virtual reality in a domestic setting often has to share space with furniture, the real world can obstruct the virtual experience. Substitutional reality tries to solve this problem by giving the home consumer the possibility to incorporate the intruding real-world objects into the virtual world. In this thesis, we explored the effects of combining a virtual reality action shooter game with substitutional reality in order to investigate whether or not substitutional reality has an effect on the game experience. A simple virtual reality shooter game was developed, to determine if the use of substitutional reality has an effect on the game experience. An evaluation was performed, which showed that incorporating substitutional reality into an action shooter game created for virtual reality, did not show any significant effect on the game experience of the user. This thesis serves as early research on the potential to include substitutional reality in virtual reality video games without disturbing the game experience and, in theory, confirms that it is possible to incorporate substitutional reality into any simple virtual reality action shooter game without disturbing the game experience.