A dungeon crawler with an MMO city builder on top.
So you would have to build a city with smiths and so on with the materials you get by defeating ogres, golem and so on.
Then I thought: Hey! You are already playing something like that: DD

The only thing lacking is its MMO element. You are playing all by yourself and have no concept of energy or something similar.
I would love to play something like that! So, are you guys know what you will program after DD?

Or does anyone know a game, that works like that?