plz recommend sims

[Mackey]

Hi everyone,
First off, this appears to be a great site and I just wish I could have found you guys many years ago.

Like many of you I am fascinated with submarines and the strategy of Naval warfare and I would love to get into the submarine simulator scene but my problem is not knowing where to begin

By that I mean, I could buy Silent Hunter 4 and get stuck in but I would rather start with maybe an older sim and progress so I can learn to appreciate advances inline with my own learning curve.

I personally would lean towards less graphical and more strategy games using my imagination to fill in the gaps.

So if anyone has any recommendations I would really appreciate it.

Another consideration would be my computer is not top of the range so may struggle to handle Silent Hunter 4, for example.

Thanks

Captain Mackey