For the new update, we’ve made some changes to the Steam Workshop system. There are currently 2 types of Workshop, for simplification i'll call them Current and Legacy.

Current system should work with no problem both on Windows and Linux server as well.
Legacy system may work on Windows server but it is not recommended to use and may cause some server deadlocking.

First add this parameter to the startup file (command line)


This will enable workshop support for server.

Now tell the server which files should be downloaded.
Navigate to:

create a TXT file and rename it to:
(click to enlarge)



In case you want to use your own custom modification or map, you need to upload it on Steam Workshop through the game client first.

Then navigate through the Steam Workshop:
https://steamhost.cn/steamcommunity_com/workshop/browse?appid=222880

and find a mod that you want to have on your server. Locate its ID number. The mod’s ID number can be found here, as highlighted in this picture (click to enlarge):




Copy that ID number to the "subscribed_file_ids.txt" file you have just created. Multiple ID’s can be placed, just be sure it is one ID per line.




Start the server and it will attempt to download all the Workshop mods.

Any mod updated/uploaded after July 26, 2015 game patch sits on current workshop system and may be used server-side. Additionally, maps in current workshop will have separate BSP, NAV and TXT files.

Attention !
It is necessary to add mod ID number to "subscribed_file_ids.txt" file, otherwise clients won’t recognize the mod and will be disconnected.

Server-side folder structure:



Client-side folder structure:

This directory contains both VPK mods and custom maps. Each folder under this directory correlates with the Workshop ID.

Mapcycle file structure for New maps is same as for the official ones:



Yes, it works on Linux server !

If you have VPK mod containing Theater script or Playlist, you will use normal methods for getting them to work: "mp_theater_override" and "sv_playlist" respectively.

Legacy workshop mods will not work on Linux server. They may work on Windows server, but it'll probably bring more problems than it is worth. I highly recommend to avoid those as they are probably outdated anyway.

Folder structure for maps:

for other modifications in VPK format:

Mapcycle file structure:

Since May 26h, 2016 server now support Workshop Collections. It works a bit differently than in other Source engine games. You can mix workshop IDs with file IDs if you want.

Be sure that your server have Workshop enabled (see Step 1) then copy "Collection ID"


put it in "subscribed_file_ids.txt"



restart the server and it will download all content from the collection.

Only current Workshop mods and maps are supported, legacy will deadlock the server !!

As you may or may not know, Server Side Workshop does support modifications that requires other mods to work properly. These are linked via “required item” function in Steam Workshop page of such mod.

Only main mod ID is needed to subscribe server side, any required item will be then downloaded/mounted automatically and will be correctly pushed for clients.



I will use my server mod as an example:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=490323818

As you can see, my mod’s ID is “490323818” and have one additional mod set as “required item”:


This "required mod" is Tigg’s “Insurgency: Arsenal” and can be found here:

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=626093257


Only my mod’s ID “490323818” is listed in “subscribed_file_ids.txt”. Upon server restart, both main mod and required mod are installed and mounted on the server: