I LOVED this. Excellent narrative that really brought feelings of isolation and hopelessness. I loved that the game didn't rely on cheap scares and really played into the creepiness and unease over anything else.
My only complaint is that the game is far too dark without the lantern in most areas. I think it would have been a lot more effective to have a well lit bunker void of life where the lantern is only needed on a rare occasion. Sending the player into the darkness is a lot less creepy when every area is dark.