Research and development of virtual reality somatosensory game based on Unity3D and exercise bike is conducted in this manuscript. The novelty of the paper is focused on: (1) The game design method is used to realize a game design method based on the exercise bike platform, which is versatile and can be applied to other simulation interactive systems. And try to solve the rigid exercise of sports games, make the exercises vivid and interesting, give full play to the entertainment characteristics of electronic games, and let participants get a virtual and real experience. (2) In program development, using game engine as development tool improves the reuse of code, reduces the difficulty of development and shortens the development cycle. The key technologies of network communication, collision detection and artificial intelligence are studied and applied in fitness bicycle somatosensory game. The performance of the proposed model is validated through the experimental analysis. In the future, the applications will be tested.

Keywords : Virtual reality, somatosensory game, Unity3D, exercise bike.