4 levels with 10-11 rooms in each and a boss in each level. Different types of weapons and magic. The rooms are generated randomly. The player must advance as much as he can in the level he is in. If you lose, the game starts again.
Every so often demons come out of hell to claim human lives. There is a family that is dedicated to killing demons. It is a family tradition, the ancestors of this family swore to kill everyone to avenge the death of their loved ones. The player belongs to this family and enters the underworld.