Yeah, I’m also confused about this. I am looking to either modify (sculpt) parts of the existing ‘The Island’ landscape, or add a floating island to it without losing current progress (player bases etc). I have no idea how to even start, as all of the tutorials I have read/watched are about creating a whole new map.
Just a bump, because i wanna create a extension. The main problem is, how to start? I’ve created a small landscape and moved it to the position i want based on the Island landscape. After cooking as extension, the landscape was not cooked.
So question is again:
Create a sublevel in your “TheIslandSubMaps” Folder, give it a unique name, add your floating islands or whatever you are adding. It needs to remain in “TheIslandSubMaps” folder forever and always so don’t move it!
After editing and saving your ext, open the cook window and select your mod.
Put the name of the map extension in the “Maps” line followed by your mods original orange level file separated by a comma.