Halo is easily one of the largest franchises in not only gaming but science-fiction as well. Its popularity after Halo: Combat Evolved was ... even exceed what the Master Chief has accomplished.

Its audience has, in many cases, grown up alongside it, watching Master Chief's story evolve as they age. Today, Halo: Combat Evolved turns 20-years-old, as does the original Xbox itself.

The Master Chief Collection. In our review of the original Halo: Combat Evolved, IGN wrote: "Is playing Halo worth the $350 it will cost for an Xbox and a game? If you can appreciate video games ...