Hmm, a game about controlling a crew and having them work together in order to pilot a submarine in the oceans of Europa. I see you took some inspiration from Barotrauma ;)
I once saw a cold war submarine game with pixel art similar to this one. You had to pump water, patch the hull, fix nuclear reactors using radiation suits, etc. Crews were colored pixels and starions just rectangles. Can´t remember the game name, was it yours too? Congratulations! the game is fun already!