A Dwarf Fortress themed Neverwinter Nights 2 module.
The module wouldn't procedurely create a world, instead, you play in a world that wouldn't be much different from a DF world, but as an adventurer (for part 1 anyway). The focus would be on roleplaying, with actual evil/neutral/good branches. Choosing evil allows you to join the goblins who want to destroy the world for their demon lord, your plans get messed up by the heros and you have to stop them from stopping you from destroying the world. Neutral lets to play both sides to your advantage, high charisma is recommended. Good is more of the typical 'stop the evil goblins' sort of thing. No matter your choice though, there would be an evil group and a good group, you essentially choose which one you'll lead, unless you want to try leading both to either save the world or thoroughly destroy it for everyone like the omnicidal maniacs we all are.
In part 2, you choose to found an elven retreat, human town, dwarf fortress, or a goblin tower. Each has their pros and cons, each race prefers their natural environment (elves hate dwarf fortresses, dwarves hate elven retreats, humans can tolerate anywhere) like access to magma/fuel, metals, stone, fresh water, vegetation. You can't exactly run your fortress like you can in DF, but the game compensates with lots of options available through NPC dialogue for how your fortress will be constructed or run.
Part 2 will also have D&D 3.5 magic, which becomes available part way through part 1, when you encounter the statue, Planepacked.
Party members get exclusive areas in your fortress, and how they run their areas depends on their alignment. Evil casters may try to become liches by sacrificing children, you decide if you're ok with that. Also in part 2, you're allowed to level past level 20, which means fooling around with deities. You encounter, deal with, kill, or worship the deities of the DF world, aiding in your destruction or saving of the world. You even encounter...
ARMOK. Turns out, he's behind all the strife the world is currently going through because he wishes to expand his power. Being the god of blood, he gains strength each time blood is spilled, and after a certain point, he plans to inflict an apocalypse on the world for a massive boost of power and establish direct rule, allowing him to easily and systemactically spill more and more blood. Armok is also roleplayed by the PLAYER. During the protagonist's interaction with Armok, the game makes a judgement call on the player's morals and then roleplays the PC's character for them while the player roleplays as Armok.
One more feature that I wish I could make in the game: allowing the player to create characters from scratch, but giving those characters personalities based on race/alignment/class/background along with accurate voice acting to match.
None of this would probably happen, since I simply lack the talent needed for programming, and lack the time (and willingness) to learn how to use the NWN 2 moduel maker. Just wanted to get this out of my head so I can move on o_O