On planet BG-386 a colonist mining group discovers an ancient pyramid containing a dark and horrible secret. Across the stars a race of warriors is alerted to the discovery of their pyramid and a hunting party is dispatched to ensure that it remains sealed at all costs, whilst deep inside the ruined pyramid a malevolent intelligence awakes from centuries of dormancy.

The Marine’s story is an incredible fight against the odds, and the horrors lurking in the dark. Beset on all sides yet armed to the teeth, the Colonial Marine represents humanity’s last stand with the firepower to fight back.

As the Alien, players will discover what it’s like to be the most murderous and lethal creature in the universe, with the ability to traverse any surface with awesome agility in order to get close enough to unleash its deadly teeth and claws.