I bought it a few days ago. Thank you for including native Linux support <3

So far, it's really fun and the tutorial is great! A few things that could potentially be added to the game:

- Crew management (nothing fancy, just a bit, like food management)

- Different kinds of torpedoes (if the US had that, I only know about German submarines)

- Countermeasures (like noise makers)

- Seeing resources (number of torpedoes) on the campaign map

- A better indication whether a ship is sunk or will stay afloat (I resolve and don't know if the ship has been sunk or not)

- And German submarines + campaign of course