ah okay, i get it. I must have just gotten unlucky with the monsters randomization cuz my journey was largely uneventful aside from the power outage. Ill have to play through again and see if i have a more eventful play through. I can totally understand if you all you wanted this to be was a proof of concept, but considering how many people seem to be into it, id say your concept has been proven lol.
another bit i had, that i did notice another commenter say is i REALLY wish there was a turbine sound effect that played when the sub was moving, that would really help the immersion.