A recent “thank you” message from developer 343 Industries has some fans concerned about the future of Halo: The Master Chief Collection. First released in 2014 for the Xbox One and eventually ported to later platforms like Steam and Xbox Series X/S, The Master Chief Collection is an updated compilation of every mainline Halo game from the original Halo: Combat Evolved to 2012’s Halo 4. The spin-off titles Halo 3: ODST and Halo: Reach were also included in The Master Chief Collection, and all entries received refined HD graphics along with new features like adjustable difficulty levels.