Hello, is the game really dark or is it just me?
You probably entered a floor with low power. These are special random floors with lower visibility. Finding the torch/flashlight item can help mitigate this. You can also find floors with poisonous gas and radar interference too.
That seems to be the case. I think it would help to put the brightness levels similar to the original.
I'll see what I can do about letting the player adjust brightness, since I know this can be an issue in many games.
