Before you start, you'll need a dungeon created with the editor.
> Northern Dungeon <
This zip file contains a "northern_dungeon" folder. Open this and inside you'll find another folder named "mod_assets".
Copy the "mod_assets" folder to your dungeon's directory found in Documents/Almost Human/Legend of Grimrock/Dungeons/ >your dungeon's name< / and let it merge with the "mod_assets" folder already there.
Now open mod_assets/scripts/ and you'll find a file named "wall_sets.lua". Open this with a text editor, such as notepad, and add the following script:
import "mod_assets/scripts/northern_dungeon_wall_set.lua"
Once you've done this, you just need to reload your dungeon in the editor and you should find the new wall set and assets.
