FOSS gamedev and creative worlds

I get this error Error[ServerThread]: ERROR: An unhandled exception occured createSector(): pos. over limit

and only a very tiny section of my map will generate

Hello. (I see that you are a new member, welcome to Minetest!)

I think I may know a fix to this problem. I somewhat recreated the problem, and this worked, so it's worth a shot at least.

Close out of Minetest. Locate the configuration file for Minetest. The file is called minetest.conf (not minetest.conf.example). The file should be in your Minetest folder. If you downloaded the game, it may be in your Downloads. Open minetest.conf in a text editor. If you receive a "search for application" dialog, choose select application or "Open With". Find Notepad, Leafpad, gedit, Text Editor, or TextEdit, use the first one you see in the list. At the end of the file, put an enter and then this exactly:

map_generation_limit = 31000

Then save, start Minetest, and create a new world. If all is well, the world will generate. Good Luck, and welcome to the forums!