My partner (Scott Early) and created a parkour VR game from scratch using Unity. My partner basically did do about 90% of the project, i was there to support him and help him along so he does get most of the credit for sure. Everything you need is in his blog post.
Link to Scott’s Blog Post: https://scottstots.home.blog/2019/08/01/virtual-reality/comment-page-1/#comment-2
Strat's Tech Blog 