That said, 2015 is just the beginning of the VR explosion, and Fred Wilson's prediction is phrased vaguely enough that he could probably claim it to have been accurate at the end of 2015 either way.
Only other thing I've seen was some sort of sculpting thing, but I'd imagine the novelty would wear out there pretty fast.
More I think about whole VR thing the less I think it will actually be a thing. I'm sure when Oculus Rift comes out for reals a lot of people are going to buy them, but I don't really see a lot of value for developers supporting them in most games, but someone comes up with killer app/game for it.
Check out castAR which you might consider an "inside out" VR experience that projects the virtual world into the real world. Thus you can walk around and look at 3D objects from all sides, see other players, your coffee, or whatever is in the real world, instead of the VR approach of sitting in one place looking around. So it's a way of working you can't do with a monitor.
(CastAR can run regular VR apps too with a small adaptor, but that feels less compelling than the mixed/augmented reality)
http://www.technicalillusions.com/
(note: We're hiring in Mountain View!)
That's an early VR demo of TxK, being ported from PS Vita, which is a Tempest remake (fast paced twitch shooter). I haven't played it myself, but those who have say great things about it. An example of a non-simulator game. What's remarkable is Jeff (one of the dev's) doesn't have the ability to see stereoscopic vision.
Most of TxK is played facing towards a web without lots of head turning. Certain games like this will benefit simply by being in 3D, along with VR's total-immersion effect.
For instance, my favorite demo is in some kind of nuclear sub control room. You can walk around, up to panels, even kneel down and look up under a shelf.
Oculus Rift is just a monitor so of course there will be multiplayer games if that's what you're speaking of. Anyone can develop a game for it and there already are ports of Quake etc out there. No need for Oculus themselves to be involved.