In this game, you are trapped inside a small shop with a grue (a creature from the Zork series). Just any connection with Zork makes a game more silly, but that's not a drawback here.
You have to move through the darkness with limited resources. As you do, you find different sources of light and other surprises. You're just trying to survive.
I had to replay a couple of times to get it right. It has some nice ambient sounds and good use of images and backgrounds.
I really liked it, and recommend it.