Import Game Components for game which already Built

I want the users to be able to import the external game map (e,g: dungeon map, field map,… with their own customization of game objects in the map) after they have downloaded it to their computer.

Are there any method to do this? I have searched through the manual documents but got nothing about this. I have thought of loading files from external source and add it into game but still cant figure it out how to make the game components in the game map to be interactable

Thanks so much for all of yours help in advance!

You can add files in the streaming folder:

Here you can put the files, maybe edited by your user, and read them later…
For the terrain you should write your own terrain data (Terrain.SetHeights).

3D model can be easly imported, see this free asset:

or these for a small price:

As far as importing textures:

Hope this will help…
Greetings