A lot of people here on Brigandshaven - a lot of editors, any way - probably use an older Warcraft 3 update because they want the JNPG editor to work. Partly, or perhaps mostly, because it has a built-in tool to modify the pathing of tilsets (useful for covering mountains with unpathable an "-Rocks tile"). You don't need actually need JNPG or any other third party software to do this, however. You can modify your Warcraft 3 installation a bit, and when you save a map it will have whatever pathing specifications you want! I'll show you how. Step 1 - Making sure Local Files are enabled First of all, to get this started, you will need to edit Warcraft's registry, in order to allow your files to be applied. To do this, simply follow these steps: Find the "regedit" (registry editor) program on your PC. (Type in "regedit" (Without punctuation) in the Windows search function) When the Registry Editor opens, find the Main Folder called "HKEY_CURRENT_USER", and open it. Open the "Software" sub-folder. Search for "Blizzard Entertainment" sub-folder, and open it. Click only once on "Warcraft III" sub-folder. Now, you will see a list on the right side of the screen. Find the registry that says "Allow Local Files", and open it (Double click). In the field of "Value Data", replace the zero (0) with number one (1). Make sure that the "Hexadecimal" flag is checked. Hit okay. The registry you edited should now display this in Data category: 0.00000001 (1). Good, now we're ready to edit our Warcraft 3 Installation. Part 2 - Modifying the Terrain.slk The War3.mpq has a basic file called "Terrain.slk" - this file essentially tells your Warcraft 3 map the settings for every tile in the game. You can extract one from your own MPQ with appropiate software - or you can download the one I attached at the end of this file - you're welcome Open the Terrain.txt (once you downloaded it from me, or extracted it yourself) with a text editor, such as notepad. You'll see very, very many lines of text. The first 17 lines are essentially a "tutorial" on how to edit the file. Spoiler: Example lines from Terrain.slk Code: ID;PWXL;N;E B;X14;Y178;D0 C;X1;Y1;K"tileID" C;X2;K"cliffSet" C;X3;K"dir" C;X4;K"file" C;X5;K"comment" C;X6;K"name" C;X7;K"buildable" <---------------- This is important C;X8;K"footprints" C;X9;K"walkable" <---------------- This is important C;X10;K"flyable" <---------------- This is important C;X11;K"blightPri" C;X12;K"convertTo" C;X13;K"InBeta" C;X14;K"version" C;X1;Y2;K"Ldrt" These lines mostly refer to World editor Strings to help allocate the tile. For example the value of "C;X3;K" - tile directory - is used to find the appropiate skin/texture file. This value is useful if you want to import custom tilesets. Find a skin of your choice, and change it's import path to the C;X3;K code of the tile, and it'll be replaced in your map! What we're looking for are C;X7;K, C;X9;K, and C;X10;K. The values of these settings (either 0 or 1) determine whether a tile is buildable, walkable, and/or flyable. (Ignore C;X8;K - this value just modifies whether models leave footprints when crossing the tile) Spoiler: Example: Making "Lordaeron Rocks" unwalkable If you scroll down through the Terrain textfile you should come to this segment: (Protip just search the file for "Rock") Code: C;X2;K-1 C;X3;K"TerrainArt\LordaeronSummer" C;X4;K"Lords_Rock" C;X5;K"Rock" C;X6;K"WESTRING_TILE_ROCK" C;X7;K0 C;X8;K0 C;X9;K1 C;X10;K1 C;X11;K6 C;X12;K"Frok,Wrok,Bflr,Arck,Crck,Nrck,Ybtl,Vrck,Qrck,Xbtl,Ddkr,Gdkr,Zbkl,Irbk,Ofst" C;X13;K1 C;X14;K0 This is the section for the "Lordaeron Summer Rocks" tile. As you can see by the lines: Code: C;X7;K0 C;X9;K1 and C;X10;K1 its standard configuration is: unbuildable, walkable, flyable. To edit the pathability, simply change 1's to 0's for the appropiate values. For example we change: Code: C;X9;K1 ---> C;X9;K0 And there! Lordaeron Rocks are now programmed to be unwalkable. Step 3 - Adding the file to Warcraft 3 Directory Once you've made the tileset changes you want, save the file as "Terrain.slk" - the extension of ".slk" is very important, as War3 won't recognize it otherwise. In your Warcraft 3 folder (typically C:\\Program Files\Warcraft III) make a new folder called "TerrainArt". Simply put your new, modified "Terrain.slk" file into this folder. You're done! Next time you start your world editor and save your map, it will take directions from your Warcratings!r, and change tile pathing to your new settings! BONUS: Download the MiscData.txt attached to this post an put it in C:\\Program Files\Warcraft III\UI (or wherever your WC3 is installed) - just create a new UI folder, if you don't have one already. This will allow you to use the Raise/Lower terraining tool infinitely, allowing you to make very steep mountains or very deep holes in the ground.