What excites me the most about TDM is that it's the perfect engine for me to create a game in a city that I've had in my D&D games for years called West Wall. Visually, I've always pictured it much like Bridgeport is portrayed in the FMs, and since it's my "City of Thieves" no set of game mechanics could be better.
My favorite part of playing D&D has always been the world building. West Wall has been a fairly small portion of the overall setting, but it has always been the one I've had the most fun with. I always DMed with a more relaxed and humorous handling of the game, and when a campaign has ventured into West Wall I'd really let loose my sardonic and ridiculous tendencies. Think Catch-22 meets Flying Circus with a decent dose of cultural references. Hopefully some people here might appreciate an approach like that as one option among the many great FMs.
Since I'm still getting used to DR most of what I'm working on is just that. When I'm not reading the wiki/watching tutorials and trying things out I'm thinking about the ways I can introduce the setting and story through gameplay. The screenshot here is from what I've done on the player's house and start location. I tried to get the best angle of it that shows off the kinds of mapping details I'm including to help tell the of story the character you'll play. I'm happy with how it's going so far, although I know I need to do more on that poster. (I just put that in as a diffuse map to make sure I had the right file locations and all. Also, that rectangular shadow as confuses me a little...)
You can see that there are a lot of readables in that room. I've kept the most important ones to single pages, and players actually only need to read the "To Do" note nailed to the front door frame to get their objectives. The books offer more on the setting and your history, but aren't essential to this mission. Anyone that does take the time to read them will see how more elements in the story tie together.
So, yeah, that's what I'm working on right now. I've gotten feedback on my plot and story development from friends but I can always use more and particularly from people who haven't known me for years. If anyone wants to hear things I'd be happy to spoil things via PM.