Halo: Combat Evolved - PC

Specifications:

• A group of alien races called the Covenant is wiping out human bases and colonies across the galaxy. You and a few fellow soldiers are all that's left of a devastated colony-world called Halo. Built for combat, trained for war, you'll do the only thing you can -- wage guerilla war on the Covenant and help other humans escape!
• Incredible graphics bring the alien world of Halo to life, as you explore it and unravel its many mysteries
• Control your Character during massive firefights as you eliminate as many Covenant soldiers as possible
• Use your tactics skills to command squads and eliminate the enemy as you engage in guerilla warfare, using whatever weapons you can find
• Incredible all-new multiplayer maps for up to 16 people, with brand new armaments you've never seen before