This is how I play my PS4 and Xbox One games in virtual reality! You can use the free application BigScreen and the free streaming apps from Xbox and PlayStation. It’s amazing to play games like Forza Motorosport with the Rift or platoformers for the Playstation 4 like Ratchet and Clank on a Big VR screen.
G@ BigScreen: http://www.bigscreenvr.com/
G@ Xbox One streaming App: https://goo.gl/N1PscL
G@ PS4 streaming App: https://goo.gl/KNpLwX