This is still in the early creation stages but I'll hopefully being uploading a playable mod sometime within this year, sounds like a lot but wow
is building the dungeon time consuming or what!!! I may upload a WIP (work in progress) or I may wait until it's finished.
Either way I'll be making updates to this mod page such as screen shots and progress updates below.

What this mod will be: A fallout version of a dungeon crawler RPG complete with loot, enemies, boss(es) and atmosphere!
What it will not be: Short/Small!
What I hope to do: Have a quest chain and the like, so far I'm having trouble learning how and implementing it, worst case is it won't have quests.
This mod will require all the DLC as it uses bits and pieces from all of them, this mod shouldn't conflict with others?

Progress report July 29th 2015:
And the G.E.C.K crashes when I try to load the mod now, can only assume one of the last things I did broke something...
On the bright side, I hadn't made too much yet in all respects so less to remake...
I think it was the skeleton head I used on two of the enemies, of course I'll have to test that to make sure.

Update: The new file I'm working on isn't crashing the GECK like the first one did, I think what happened was it
didn't like it when I made the head playable/lootable, I did the same things as before with exception to that and it works so far.

Update: The new version is only going to us the main 4 DLC and not all 8 or so, hopefully all that loading was to blame in part for crashing the GECK.
By "main 4 DLC" I mean: Honest Hearts, Lonesome Road, Old World Blues, and Dead Money.

Progress report July 30th 2015:
Dungeon creation is coming along nicely and I should have a new demo/test file up soon'ish, I am encountering an odd things
however where the armor that makes the enemies skeletons is lootable despite not being set to playable?

Progress report August 1st 2015:
Lost my internet connection all of yesterday and most of today, finally got it back!
I'll be uploading a new WIP file with the new textures and such shortly, even added a visual gag for humor for a part of it.
Side note though, if the skeletons prove to be toobuggy I may have to go back to regular enemy types like creatures and raiders...

Progress report August 19th 2015:
Been kind of loosing times to console games and anime lately, still doing little things here and there but it's hard to sit down
and focus on a large mod like this when there's other stuff you want to do you know?
When I'm done the first floor of the dungeon (pretty damn big) I'll be uploading it and trying a new approach for the lay out method
starting with the second floor that will hopefully be faster than the previous/current method I'm using.