Perfect Dark Zero is a first-person shooter video game developed by Rare and published by Microsoft Game Studios. It was exclusively released as a launch title for the Xbox 360 video game console in 2005. The game is part of the "Perfect Dark" series and a prequel to the original "Perfect Dark". The story of the game follows Joanna Dark, a bounty hunter working with her father and a computer hacker, as she joins the Carrington Institute agency to prevent a rival corporation from gaining possession of an ancient artefact which endows individuals with superhuman powers.