Paradox Interactive today announced that Dark Horizon, a stark and atmospheric space combat simulation which follows along the same lines of classics like Wing Commander and Freelancer, has shipped to retail across North America. The game promises to deliver a plot-rich experience, 22 challenging missions, laced with special features such as full ship customization, original weapon creation, joystick support, and several modes of combat. Dark Horizon will be available across Europe on September 26th.