...You have to find a key and a door in a large dark room filled with randomly generated objects and walls. And an enemy, of course, which wanders around the map and starts chasing you if he sees you.
You only have a compass and a lamp, which you can refill with oil cans scattered around the room.
You can also run, but the more your stamina is drained, the slower you'll run.
The door emits a bell sound when you're getting closer to it, and the key leaves marks on the floor that lead to it.
But you can never exactly tell from the sound is coming, and the marks can sometimes be misleading and hard to follow.
...