Discover the Valkyria solar system of the 22nd century, a world that contrasts the wild mysteries of nature with the man-made technology of the future. As an interstellar mercenary, you must prove your skills in a variety of challenging missions in tropical forests, rocky deserts, canyons, craters, snowy glaciers, and inside the futuristic complexes. Use weapons--including common knives, machine guns, and plasma rifles--to fight your foes, implants to improve your reflexes and abilities, and different land and air vehicles for transportation.  Source