This VR application is part of a school project that lasted 6 weeks, which became the final prototype of this. The purpose of the prototype is to reduce the stress level of users (target audience was health care workers in the project) by creating personally generated worlds. These worlds would be built by users' preferences, so you would have a world like the one shown here in the video. 

The VR application consists of hand tracking as opposed to controllers for more immersion in the world and there are several activities you could be involved in.