Video of a Prototype of an Augmented Reality Game

I accidentily came across this on YouTube. It’s a prototype of an interesting augmented reality game where you have to guide a guy through different rooms by tilting a cube in different dirrections. The rooms are surimposed on top of a live video of a cube that the user moves around.
Also, apparently the programmer built the levels in Blender. :smiley:
Here’s a link to the video.