I have been working on a 3D/VR game for Google Android Cardboard and finally have something I can demo. It's a work in progress and is not ready for publication.
I recorded this video to demo my Swarm 3D/VR game. The object of the game is to swat a swarm of mosquitoes and avoid being bitten to score points.
I wrote it with my open source Processing - Android - Cardboard development kit. It has only been tested on my Sony Xperia Z1S phone and this is a video recording is directly from that phone at 1080p.
A link to open source code for the Processing-Cardboard SDK is
https://github.com/ajavamind/Processing-Cardboard
Here is link to my blog description of the SDK:
http://andymodlaphotography.blogspot.com/2015/07/write-google-cardboard-vr-apps-with.html