Copy Save Profiles to Sandbox Current Navigate to the "Mods" tab Play Check: "Import save profile" Launch with active mods Legacy Downloads Download the DOOM Save Manager for your OS. Windows Linux Instructions Unzip the contents Run "DOOM Save Manager.exe" Action -> Export Backup Select the top option -> OK Save "backup.zip" Unzip "backup.zip" into the located of your DOOMSandBox save data. Ex: C:\Users\PC_NAME\Saved Games\id Software\DOOMSandBox\base\savegame.unencrypted\ Overwrite all existing data Be sure to keep backups of your original saves in case something goes wrong. If your saves didn't properly transfer, try selecting the 2nd option in the Export Backup menu.