CDV Software Entertainment today announced that Alien Shooter: Vengeance, the sci-fi action sequel game developed by Sigma Team, has shipped to retail stores across North America. Alien Shooter: Vengeance has a hack 'n slash gameplay mixed with a science fiction storyline packed with dozens of weapons and vicious alien life forms. The game features a diversity of character types, an RPG-style skill development tree, multiplayer gameplay modes and more. Check full article for details and download the demo if you haven't done it yet.