I did my first virtual reality development experiments on HTC Vive glasses 2016 in Finnish Virtual Reality Association workspace. After that, I worked while for Avains Oy, making virtual reality solutions for various educational needs. The latest virtual reality experience that I have done are directed Oculus Quest glasses. Utilizing mainly their sdk. Implementations have included a calming experience that utilizes high-quality mobile 360 video. Where it was also important to program the sound world of the environment to be random but still positioned. Another example is a virtual glass program designed for security guards. For this, I built a system that follows the decibel of human voice as well as location. In addition, "action mode" was made for the implementation, in which the user had to take control of the disturber. Vr glasses I am familiar with: Htc Vive 1 / 2 / pro Oculus go / Quest / Rift GoogleVR