Really good game but i wish there was a hint for the monster stats.
Like if you move your cursor to the monster name the stats of the monster are shown (like: http://www.abload.de/img/zwischenablage02z1lj3.jpg)
Just a suggestion for some further improvements:
1st: Set y for fireing torpedos too. - Why? QWERTY / QWERTZ Keyboard support.
2nd: Maybe add steering with mouse (catching mouse with Unity 3d is possible)
2.5nd: Ascending / Diving with mouse wheel?
3rd: Delete the Tutorial from the main screen and add it as first mission with a skip button (just a simple improvement but hey it's better if you play it the first time)
+ if you like it
crewman: "Captain we ran out of fuel..."
captain: "Damn, here's some fuel to blow the ship up"
crewman: "Ehm can't we use it to power our ship instead?"
captain: "I said blow it up!"
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