Set long after a massive event decimated humanity, you awaken from cryosleep in Mars's Site -113. This was the most state-of-the-art off-world research site in existence and holds many answers to the secrets of what happened during the events that threatened humanity's existence many months before. You'll traverse the crumbling and overgrown facility to try and find anything you can to help you against the many dangerous creatures that have made the outer sections of the facility their new homes.