Valve’s cancelled prequel to its hit 2007 puzzle game Portal has been revealed properly for the first time thanks to indie developer LunchHouse Software.
The original code for Aperture Camera, Valve’s cancelled prequel to Portal, has been provided to LunchHouse Software in order to help them create a video series about its development. The series, called Exposure, reveals and discusses the core game mechanics of this lost prequel, which was based upon photography.
The first video in the series demonstrates the player using a camera to take pictures of objects and then resize and reposition them in the world. This mechanic is used to solve puzzles and move through a series of rooms.