You can transfer existing PC (Steam or Epic) world saves from your existing Save Games folder to the Dedicated Server’s Save Games folder and play the game on the Dedicated Server.
Depending on the platform of your Regular Build, the Save Games folders are located either in C:\Users[UserName]\AppData\Local\Moria\Saved\SaveGamesEpic
or
C:\Users[UserName]\AppData\Local\Moria\Saved\SaveGamesSteam
Please note: World Saves are .sav files that start with MW_.
The destination folder is called \SaveGamesDedicated and it will be in your \steamapps\common\Return to Moria Dedicated Server\Moria\Saved folder.
Now copy that file over to the destination folder, and copy the filename. Save files are named something like MW_BAD1ED294904FE2C24A8ED8BC98145AB.sav for example.
Go back up a few levels to the \Return to Moria Dedicated Server folder, and edit your moriaserverconfig.ini file so it will call on the correct save file. Its easy to edit, you can just right-click and "open with" and use notepad.exe.
example using the filename above, scroll down to this section and input the full filename after OptionalWorldFilename=
It would read like this
; The file name of the world to load. Helpful if you have multiple worlds with the same name. ; Note that renaming world files is not currently supported. OptionalWorldFilename=MW_BAD1ED294904FE2C24A8ED8BC98145AB.sav
Remember to save the config file after editing! Now restart your dedicated server, and it will force this file to load for you!
You should see this properly loading, for example in the Dedicated Server console output;