Halo: Combat Evolved was originally released by Bungie and Microsoft for the Xbox console, marking a significant milestone in first-person shooter gaming and the beginning of the Halo franchise.
Microsoft announced Halo: Combat Evolved Anniversary, a remastered version of the original game with updated graphics and additional features, to celebrate the 10th anniversary of the original release.
Release of Halo: Combat Evolved Anniversary for Xbox 360, featuring enhanced graphics, remastered audio, and multiplayer features, allowing both new players and fans to experience the classic game with modern improvements.
The UNSC Pillar of Autumn performs a slipspace jump near a mysterious ringworld called Halo, but is intercepted by the Covenant and forced to crash land on the ring.
The Pillar of Autumn crashes on the surface of Halo, and the Master Chief wakes from cryo-sleep to begin combat operations against the Covenant.
Master Chief navigates the lush but dangerous environments of Halo, fighting Covenant forces and experiencing the ring's mysteries.
Master Chief and Cortana accidentally release the Flood, a parasitic alien species that threatens all life on Halo.
Master Chief teams up with onboard surviving Marines to combat the Covenant and the Flood on Halo's surface.
The AI monitor 343 Guilty Spark informs Master Chief of Halo's defenses and the threat posed by the Flood. Master Chief works to prevent the spread of the Flood.
Master Chief destroys key Flood Infection Forms to limit the proliferation of the Flood infection on Halo.
To prevent Halo from being used as a weapon, Master Chief pilots a captured Covenant ship into the crash site, detonating the fusion reactor and destroying the Pillar of Autumn and parts of the Halo ring.
Master Chief escapes Halo aboard a fighter shuttle after the ring's partial destruction, intending to report the findings and warn of the ongoing threat.