Ponorka is a dark game but it is normal for this to happen as you will have to go underwater until you reach the bottom of the ocean. You will have to work a while in order to find your objectives that are some white bars that must be destroyed. However, these bars are not just usual bars.
They provide power to your enemies and as long as they are in one piece, the enemies will also come at you in order to destroy you, so you will have to watch out for yourself if you want to avoid such problems.
