Enjoyed it a lot! The retro asthetic really sells it and it has a fitting horror soundtrack.
Cool storytelling which really peaks in the end. Good length for the story as well.
Hi there, great to see more U-Boot effort!
A focus on engine simulation is great, I take you have played Wolfpack and found the game lacking?
One thing that struck my eye: The font on the "start" "reverse" etc. looks out of place. It was used in advertisements back in the day, a more appropriate font for an engine room of the time would be the one described in https://en.wikipedia.org/wiki/DIN_1451.
I'd love to contribute to this, as I am a Unity gamedev as well, but you probably don't want to open source this, right?
My skills are Unity, Godot, UE4, Blender, Git and generally an interest in sub simulation.
Keep it up, by the rate they release Wolfpack updates, you will replace that game in two years time ;)