Problem with modern day sub sims for me is the lack of a good back story..or back history in this case. True, modern subs have had their "blind man's bluff" days and hypothetical Cold War moments but nothing to me really compares to the complete and complex history of constant ongoing operations like there was in WW2. Dangerous Waters and Sub Command seems to have that market covered anyhow.
Plus, there is plenty of material left to be mined in WW2. The subject of a British sub sim set in the Med sadly hasn't been touched yet. Going by this forum there is a market for WW2 Japanese subs sims as well.
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