TypeScript /** * The custom USGSOverlay object contains the USGS image, * the bounds of the image, and a reference to the map. Download: They Are Billions - Custom Map Themes Updated 11. Or ask for permission to use there maps and as such get the map file from the maker. I put some custom maps in that 'Maps'-directory and the game indeed also didn't recognize them and yes that folder has all permissions and this even occurs when running the game as administrator. You can use the random map gen to make a map for you with the random gen provided than add resources and stuff via triggers thou all events will need to be made by you.
I had to make the 'Maps'-folder myself, but opening and saving a map in the worldbuilder also produced thiss map in the AppData directory. I can reproduce your issue, I also only saw those folders and the AdCache folder. Once unlocked, custom maps can be created, edited, played, or your first point won't help as you can't do anything with that file of course.
Select the levels you like and press the Subscribe button. Custom maps are available to the player once 'Bubble Sort' (formerly was Cuckoo hashing) in the research tree has been researched. In the custom levels dashboard there is a link to the They Are Billions workshop.