Game site:
Ship Simulator 2008 is a realistic simulation game that puts players at the helm of some of the most varied and detailed ships to be found at sea. Players will need to perform a multitude of tasks, all set within a realistic 3D environment, taking control of a wide array of ship types - from massive cargo ships and ferries, to speedboats, yachts, water taxis and even the mighty Titanic.
* Dynamic ocean waves, with realistic ship motions
* Long distance travels , open ocean voyages between ports
* Extensive day, night, and weather systems
* Sixteen ships, each with walkthrough functionality and interactive bridge controls
* Thirty new complex and challenging missions
* Free roam mode, Mission editor and Multiplayer functionality
Source: The Game Website.
User addition
As of version 1.3 the game supports multiplayer