Mac users interested in Submarine simulation game generally download:
Danger from the Deep (known as dangerdeep or DftD) is a free (as in free speech), Open Source World War II german submarine simulator. The program and source code is available under the GPL license and most of the artwork/data is released under a Creative Commons license (Attribution/NonCommercial/Non-Derivative works).
Additional suggestions for Submarine simulation game by our robot:
Naval warfare strategy game.
naval warfare simulation game that represents...airplanes, helicopters, submarines
Naval turn-based WW2 simulation game, extension to the classic Battleships game where ships/planes/subs can move....
based WW2 simulation game, extension...40 ship, submarine, airplane &...large. Game objectives
