Bent on humankind's extermination, a powerful fellowship of alien races known as the Covenant is wiping out the Earth's fledgling interstellar empire. You and the other surviving defenders of a devastated colony-world make a desperate attempt to lure the alien fleet away from Earth. Shot down and marooned on the ancient ring-world, Halo, you begin ...Read Morea guerilla-war against the Covenant. Fight for humanity against an alien onslaught as you race to uncover the mysteries of Halo.Halo takes you deep into the future, with the fate of planet Earth hanging on your shooting skills. After a massive battle, only one ship is left and its crew is stranded on an abandoned space station. You must do whatever it takes to keep the Covenant from reaching Earth.

How long is Halo: Combat Evolved?
When focusing on the main objectives, Halo: Combat Evolved is about 10 Hours in length. If you're a gamer that strives to see all aspects of the game, you are likely to spend around 15 Hours to obtain 100% completion.