Tileset
From NWNWiki
A tileset is a collection of tiles which follow a common theme. They allow a builder to select from a list of different tiles (each with varying sizes) to construct an area in a module.
With the tilesets included in patch 1.69 (the final patch for Neverwinter Nights), the total number of BioWare tilesets available to developers has reached 26. Other groups and individuals, however, continue to release more tilesets for the community to use. Most notable of the groups releasing tilesets is the Community Tileset Project.
