In 2014, Microsoft released Halo: The Master Chief Collection for Xbox One. An ambitious compilation featuring Halo: Combat Evolved Anniversary, a remaster of Halo 2, Halo 3, and Halo 4, The Master Chief Collection gives players a dizzying amount of content in a single package. The Master Chief Collection had a very rocky start, and it took some time to get the collection in a technically-sound state, but it's improved greatly in the years since, fixing problems, adding brand-new content, and throwing more Halo games into the mix.