Description: Planet Zethos has fallen under the military control of Thau-Phi, a rogue Artificial Intelligence. The only hope of liberating it lies in the crew of the DST Horizon, an elite mercenary unit operating in the deep fringes of space. Horizon Riders recruits you into the toughest and most daring merc outfit in the galaxy, blasting through an army of renegade robots with an array of high-tech weapons and mounted on a high-speed assault hover-board.