This tileset contains 3 interior terrains: two stone castle interiors, an art-deco inspired dwarven hall interior, and a longhouse interior.
The castle interiors are designed to work together, but note that while it is possible to link them to the longhouse interior with doorways, the floors will not align correctly.
You may use this hak and all its contained files for any purposes, including repackaging it with any other project, as long as that project is free and open for anyone to use and modify.
Tileset by Ancarion: https://neverwintervault.org/project/nwn1/hakpak/tileset/castle-interiors-0
Height fixes by Hellblazer: https://neverwintervault.org/project/nwnee/hakpak/tileset/castle-interiors-rooms-heights-fixed
More height fixes by El Grillo: https://neverwintervault.org/project/nwnee/hakpak/tileset/ancarions-castle-interiors-further-tile-height-fixes
Besides prefix pld01, the hak contains a lot of files with prefix tdh01 and tiv01.