Let's make a setting

>The world is one massive super dungeon

This was already done in the Dungeonworld novels as well as the Riverworld novels.

The super dungeon is a living being

If you get to the end and kill the dungeon master you get to be the dungeon master in the next go-around.

The dungeon doesn't have any natural inheritance. All the life in it have came from numerous different planes of existence who arrive to this place after getting lost in a dungeon

It's not a flesh dungeon though, it's more of a malevolent labyrinth that sometimes guides wanderers into the lairs of monsters, self-setting booby traps, or dead ends.

So dungeon meshii.

Would the concept of a 'dungeon' really exist in a dungeon world?

The dungeon is synonymous with the word world, a prison is where you keep your captives, and a lair is where dangerous monsters dwell with their treasure.

David Bowie is behind everything.

An evil elf sorcer built the Dungeon World in a similar vain as Ravenloft. A prison/hell to trap greedy adventures.

The dungeon was originally created by a coalition of mighty deities and powerful mortal magic users to serve as an interplanar dumping ground for violent criminals, savage monsters, and the cultists of evil entities, with some overlap between each of the three categories. Over the course of millennia, the dungeon has developed a complicated ecosystem based on treasure, lichens, mushrooms, and cannibalism.

The heart at the bottom of the labyrinth gained sapience from the souls it had consumed, and after a few centuries, gained a twisted sense of humor and an insatiable curiosity concerning its denizens. It enjoys opening portals in random places in other dimensional planes to trap mortals within itself, and it has morphed into the default afterlife for monsters and villians, with the more dangerous appearing lower, closer to the heart.

I think this would be more fun if David Bowie was literally behind everything. Not as in, he designed the labyrinth, it's meant to advance his plans, etc, but more

>spooky decorative suit of armor starts moving
Enchanted armor? Nope, just David Bowie wearing it.
>chest clamps down on your thief's neck
Not a mimic, just David Bowie pushing it shut
>go to take a shit
Thanks for holding the TP roll, Dave!

Basically an extremely androgynous grocery jester in a dungeon world setting.

I like the idea but let's keep it that the elf sorcerer/David is just a manifestation of the dungeon itself

No, Dungeon Meshi is just a regular dungeon that gets raided from the village on the surface.

So living dungeon with omnipresent manifested will. I like it, it can be played seriously or for humor.

There are several community's in the dungeon. It's unknown if they are bands of adventures who got lost or locals, but where ever these bands are safety can be assured

Some of these band have united together to form city's in the more "stable" parts of the dungeon

He could probably be the Strahd of the setting.

Much of the dungeon appears to be stone, or nicely carved slabs, but there are untamed sections where everything is covered in moss, small plants and maybe big hollowed out forest sections. This is true for every RPG dungeon "type", jungle, cold, fire, etc. These are usually places influenced by a leyline or portal to the elemental plane related to the area. It's not perfect however, as the dungeon world is still primarily rooms, corridors and caves and the elemental influence must simply grow around it.

I always liked the prospect of a superdungeon, though I feel like it's better when it's formed of natural caves instead. Basically take the Underdark, but stretch it all the way to the surface and make it have a lot more variety than being full of darkness.

>>The whole world is a small room mostly filled with mirrors that act as portals into alternate dimensions that are only slightly different versions of the same small room. One of the mirrors in one of the infinite rooms leads to "the outside world" but no one knows which one it is.
>>Anyone who might have gone through has yet to come back
"There are over seventeen mirrors in the Mirror Realm"