As one of the most influential video game franchises of all time, Halo has maintained a monolithic level of relevancy throughout its over 20-year-long run so far. Following the operations of the iconic Master Chief, the series has always been more known for its action-packed gameplay than the characters and narrative surrounding its combat. Halo features a rich lore and story despite this fact, however, and Master Chief himself has shown clear character development with each of his appearances.