Building Virtual Worlds is a class that we take in our 1st semester at Entertainment Technology Center, Carnegie Mellon University. This class is divided into 5 rounds where each round is 1-3 weeks long. Every round we get a random team of programmers, artists and a sound designer to work together on a random platform (Kinect, PS Move, Oculus Rift, etc.) to create a game based upon a particular theme in the time slot provided. We give weekly progress presentations to the whole department. It is an extremely rapidly prototyped game development environment with completely new people on random platforms.