Halo: Combat Evolved

Embark on a perilous journey as humanity faces extinction at the hands of the Covenant, a formidable alliance of alien species. As Master Chief, a super-soldier enhanced through advanced biological alterations, join the desperate fight to distract the Covenant's massive fleet from Earth's dwindling defenses by infiltrating the distant ring-world Halo. After a catastrophic crash, you must resort to a covert guerrilla campaign to outmaneuver the Covenant's relentless assault, racing against time to unravel the secrets hidden within the ancient, mysterious ring-world.