The gameplay is frantic and bloody, and each weapon is good for a specific situation. NOTE: the game is story-driven and DOES NOT FEATURE RANDOM LEVELS. You play as Dr. Green, expelled from medical practice after an unfortunate incident. Mysteriously freed from cryoprison on colony Sarang-2, he discovers that there are very few humans left in the world. Driven by the desire to find his estranged daughter and haunted by flashback to the incident that ruined his life, he has to make his way across the devastated surface of the planet, and overcome unspeakable challenges.