New Underdark City

This hak adds a new dragon-themed city terrain to the Underdark tileset. It has cobble, building, and castle terrain types as well as a city wall crosser, and uses mostly standard Bioware Underdark textures (some modified slightly) to keep its look consistent with the rest of the base tileset. It's not as complete as I would have liked, but it's enough to build a decent-sized city for dragon worshipping denizens of the deep.

Feel free to do with it as you wish... Retexture it, rip the tiles for other projects, whatever ideas you can come up with. I make no claims of ownership, and would rather just see it put to use.