Add it to your server
In your server's .ini file (servertest.ini by default), add these to the existing WorkshopItems= and Mods= lines, separated by a semicolon (;).
WorkshopItems=3823556776
Mods=RetroVideoGameCollection
| Workshop item | Subscribers | Declared in |
|---|---|---|
| Retro Video Game Collection3823556776 | 124 | description footer |