You need two IDs for each mod:

• Workshop ID: the number at the end of the mod’s Steam Workshop URL.
• Mod ID: the mod’s internal name, usually written in the mod description.

Steps

1. Stop the server in the panel .
2. In Files, open .cache, then Server, and edit the server’s .ini file.
3. Add the Workshop IDs to the WorkshopItems= line and the Mod IDs to the Mods= line. Separate entries with semicolons and no spaces:

WorkshopItems=2619072426;2392709985
Mods=tsarslib;commonSense

4. Click Save Content, then start the server. The mods download on startup.

Troubleshooting

• A crash or players unable to join usually means the two lines do not match. Check for spaces and keep the mods in the same order on both lines.
• Players need the same mods on their own game.
• Some mods need other mods listed before them, so check each mod’s page.