Dive into an interesting underwater world and experience action-packed sci-fi adventures! DEEP takes you to Kappa, a distant aquatic planet with exotic life forms. YOU are an independent fisherman and mercenary, living by mining natural resources and performing combat missions for the colonists who rule Kappa. In this adventure story, you must be confident both on the battlefield and making money. Uncover all the secrets of the ongoing incident between rebels, pirates and mysterious forms of sea life. You can operate and successfully upgrade many types of submarines, as well as trade various types of goods in hundreds of locations in this very interesting underwater adventure. But be careful! The pressure of the ocean water and the deadly solar radiation on the surface can cost you your life if you do not upgrade your submarine properly!