Halo 4 is a first-person shooter computer game designed by 343 Industries for the Xbox 360 system console. It is also the very first installment in a brand new trilogy of Halo series video games, known as the "Reclaimer Trilogy". The video game was launched all over the world on November 6, 2012, other than Japan where the game hit the market on November 8, 2012. The video game starts out four years after the end of Halo 3, and shows the return of the main protagonist, Master Chief, in addition to artificial intelligence construct Cortana.