You start out in a Town hub, here you can buy new weapons and armor.
What you equip here will be you starting weapon and helmet.
When you enter the dungeon you get thrown into a random dungeon room, each time you leave a dungeon room you get thrown into a random other room.
So each dungeon run will be unique.
Sometimes you will be sent into a treasure room, here you can pay to open a chest for a chance for a nice blessing.
These will give you more power/more health/ xx% for more gold etc..
After a few rooms you will be sent in to a boss room, kill the boss for a unique blessing based on the killed boss and a pile of gold.
I aim to make the game endless, but design the game to kill you.
So try to make it as far as you can.