#AcesOfTheDeep (1994) is the war submarine simulator for #DOS. I was playing in the #90s in #SilentServiceII (1990) many times. The AOTD has a superior graphics (waving sea) with many influences of #DasBoot (1981) film.
https://archive.org/details/aces-of-the-deep-mr-abandonware
https://archive.org/details/silent_service_II_1990

Here's what's going on with me lately. I bought a retro handheld #Anbernic #RG35XXH and I'm slowly looking through old games on the go. For now, I'm getting familiar with it. Young people look at me suspiciously when I play while riding the subway.
Separately, I bought #SilentServiceII on #GOG yesterday and spent some enjoyable time with the game and studying the manual.
Submarine combat tactics can always come in handy. ;-)