The integration of Virtual Reality and 3D ren-dering technology in game design aims to provide a more realistic,immersive and innovative game experience.This paper analyzes the advantages of integrating these two technologies in game design,including the innovation of interaction design,the creation of realism and the im-provement of user experience.The problems existing in the integration process are discussed,such as performance requirements and hardware limitations,the balance of user experience,and the difficulty in technology integration and development.The optimization measures such as per-formance optimization and hardware adaptation,compre-hensive consideration of user experience,and technology integration and collaborative development are proposed in order to provide useful guidance for practitioners in the field of game design and related professional learners.