http://www.fileplanet.com/164476/160000/fileinfo/Ship-Simulator-2006 (http://www.fileplanet.com/164476/160000/fileinfo/Ship-Simulator-2006)
Haven't actually checked it out yet, but might be another Bridge Builder style game, but Ship Builder instead :P
Ship Simulator 2006 tis called.
Sounds like you get to steer some big ships around, now, if you could build them as well that would be that much more fun!
Ahoy! Y'arr! Scurvy!