Go to your local saves folder, find the map save you want to upload and right click > Send to compressed folder. You must zip the folder, not the files directly!

It must be a .zip, it must not be .rar or .7zip. The local saves folder can be found C:\Users\Username\AppData\Roaming\SpaceEngineers\Saves\A long string of numbers - Please note that the Username will be the username for your account on your PC. This is the most common location for Space Engineers saves and can be different!

Go to the maps manager in the control panel

Click upload and follow the onscreen instructions

One uploaded, right click on the map > Load

Go to the game configuration and click save so that any mods / configuration settings get copied over to that map

Start the server
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