SUNLESS SEA is a Horror Survival, Adventure and RPG game for PC published by Failbetter Games in 2015. Rescue yourself from the dark sea!
SUNLESS SEA PC Game 2015 Overview:
When you find your father’s bones in the sea, You find that there are many dangers at this place. Now, Your ship is in the middle of these dangers.
(v188.8.131.5248 + Zubmariner DLC added)