The map and portals are stored on a computer and everyone can share them.
Open the Entire Map and All Portals
Step #1 Download file (this file contains the settings of my game, it is taken from the game folder).
Step #2 Open the folder – Steam\steamapps\common\Survived By\CloudSaves\
Step #3 Paste this “World0_fow0.tbm.bytes” file into a folder with many numbers in its name.
Step #4 Done!