Silent Service is a classic I remember well. The original version also works on the SM124 in ST-HIGH, I don't know if this is also true for the given Automation crack.

So we have a submarine simulation, and one of the earlier examples. You take command of a US submarine in the Pacific in WW2 hunting down japanese shipping.

The game plays in real time for the main sub view. Only patrol overviews are played on a map with time acceleration until enemy contact. The player can fire torpedoes and the deck gun with periscope and binocular view, a damage view and engine instrumentation is available.

Enemy ships can be quite pesky and I only managed once in a lot of tries to actually damage the carriers in the "Cavalla vs the War Fleet" scenario.

The game offers to play from a list of scenarios including target training aswell as going on patrol on various simulated dates. It helps to know your history book to actually find enemy shipping ;)

Graphics are ok for 1986, sometimes a bit slow when large sprites are shown but functional and variied. Sound is a bit sad and not much better than beeper noise.

The gameplay is varying enough for some fun and there is quite a learning curve to master until you get to a satisfying patrol with 40000tons sunk ;)

If you like submarines, this should be on your list to try. A very decent sim with a release date in 1986!

Note that the given menu for download seems not to be STE fixed....it flickers over here.