My apologies; this is essentially a shortcoming on my part as a game designer. The darkening effects were added in a patch, but they ended up severely hindering navigation in an area that was already quite dark. There wasn't enough time to implement specific markers, so I had to rely on the hope that players would explore the location on their own. I plan to address this in the future. My initial idea was to use emergency lights to guide the player toward the generator, but because the unopened rooms were so dark, that concept didn't work as intended.
Thank you for the feedback—it’s very valuable.
Players might end up quitting the game at this point, even though things only get more interesting from there.