I made a UE4 VR environmental demo for the Oculus Rift based on the Star Trek Voyager bridge.
There are three audio dialog cues you can find and trigger. For example walk to the center helm chair at the console in front of the giant view screen.
And of course… Press ‘e’ to fire photon torpedoes! e,e,e WIDE SPREAD FULL VOLLEY, CAPTAIN!
Press ALT-ENTER to enter fullscreen Rift mode or you can just play it normally in windowed mode. (For fullscreen without the Rift mode, open console and enter STEREO OFF)
Made in Unreal Engine 4. It runs at 60fps on my machine with a 760gtx in Oculus Rift mode.
Not sure how it will fare on other hardware.
You may need to download and install the Microsoft VC++ redistributable here.