If you get a chance to try it, or maybe you already have - you get this odd sense of presence when using VR. It's not quite the same as playing a normal game. Even just perspectives of things like size seem much more real in VR. Even with today's early hardware it's pretty good at tricking your brain.

This combination of presence and multiplayer create these crazy (to me) experiences where it's like you're stepping into the internet to meet people and explore it with them.

VRChat is one of the more popular examples, but most of it stuff still needs to be built in the first place.