Project Codetta is a game that scored third place at the Global Archiact Game Jam of summer 2015. It is a virtual reality game played on an Android device using the Google Cardboard with a bluetooth game controller. You play as a person who gets trapped inside of a virtual world within your phone, and you have to defeat various monsters to escape back to reality.
The game can be downloaded from the Google Play store here.
The entire Unity project is also available on GitHub. Note that I will not be updating this project any further, though you are welcome to clone the repository and fiddle around with it.