I've found this web based demo of Decentraland.
They talk about compatibility with Vive and other Unity supported hardware. I think the rendering of their web demo is basic - I guess it highlights that it is early days.
However it could grow pretty quickly if people can aquire real estate and then drop 3D models on it.
Maybe i'll trade a few STEEM for a couple of virtual acres :-D
RE: Decentraland - A virtual reality world with ownership assured by blockchain