The Tileset Construction Project consists of two parts, a new tileset made by taking all the open tiles of various tilesets and putting them into one new ceilingless tileset, and a large set of placeables made out of parts of various tilesets to allow builders to use them separately, including a set of tiles as placeables to demonstrate the use of tiles as placeables. Blueprints are included. A set of walls and columns from the stock tilesets are also included, to allow the creation of things like triangular rooms or other shapes not possible with the stock tilesets.
 
The download is rather large as it has to include the textures for each tileset it draws from. These are the same textures used in the original tilesets, so if you are using them check for duplicates. I've kept the texture folder structure the same as my tileset project (http://neverwintervault.org/project/nwn2/hakpak/combined/kamals-tileset-project). Placeables tags include the tileset code after the plc_ prefix, so you can identify which tileset they came from by looking at the tilesets.2da
 
{there are a few visible errors in the screenshots, but those have been fixed for public release}
Given the size of this, I couldn't test everything, so please report issues, especially walkmesh/camera issues.
 
In the includede placeables.2da, TCK content is on placeables lines: 25376-25954