This is how your character's story starts.

He wakes up in a dark place where sunlight doesn't reach, and only dim lights guide his way. He realizes that he's losing one very valuable thing to him. If he asks around, he will find out that he's actually in an underground structure.

He can claim any room he wants for him to live in. There's a kitchen, a mess hall and a storage for his everyday use.

He's also in posession of a mysterious notebook, which will help him communicate with the rest of the structure's residents.

He finds out a few Gods run this place. These Gods tell you that you're not allowed to leave this underground structure and go to the upperlands.

Once in a while, though, the Gods tell you that you may go to the upperlands. And when you do, it's always a different world.

The Gods then give you a riddle to solve, and the one who gets the best answer will get an item from the world that is currently above.