How to Add Mods to Your Black Mesa Server

Plugins on a Black Mesa server run through Metamod:Source and SourceMod. You need both: Metamod:Source hooks into the Source Engine, and SourceMod builds on top of it to provide the plugin environment and the admin features. Metamod:Source has supported Black Mesa officially since version 1.10.5, and SourceMod builds on top of it.

Install Metamod:Source

1. Download Metamod:Source
   Download the current stable version of Metamod:Source as a Linux package (.tar.gz).

2. Stop the server
   Stop your server via the dashboard.

3. Connect via SFTP
   Connect to your server via SFTP.

4. Upload the files
   Extract the archive and upload the addons folder it contains to the following directory:

   /bms/
   

   Afterwards the folder /bms/addons/metamod/ exists.

5. Start the server
   Start your server and check in the server console with meta version whether Metamod:Source was loaded.

Install SourceMod

1. Download SourceMod
   Download the current stable version of SourceMod (currently the 1.12 branch) as a Linux package (.tar.gz).

2. Stop the server
   Stop your server via the dashboard.

3. Upload the files
   Extract the archive and upload the addons and cfg folders it contains via SFTP to the following directory:

   /bms/
   

   Existing folders are merged, not replaced. Afterwards the folder /bms/addons/sourcemod/ exists.

4. Start the server
   Start your server and check in the server console with sm version whether SourceMod was loaded.

Install plugins

1. Download the plugin
   Download the plugin you want. Ready-to-use plugins come as a .smx file.

2. Stop the server
   Stop your server via the dashboard.

3. Upload the plugin
   Upload the .smx file via SFTP to the following directory:

   /bms/addons/sourcemod/plugins/
   

4. Start the server
   Start your server and check with sm plugins list whether the plugin was loaded.

Folder structure at a glance

/bms/cfg/                                 <- server.cfg and other configurations
/bms/cfg/mapcycle.txt                     <- map rotation
/bms/maps/                                <- maps in BSP format
/bms/addonlist.txt                        <- list of active VPK packages
/bms/addons/                              <- VPK packages and extensions
/bms/addons/workshop/                     <- VPK packages from the Steam Workshop
/bms/addons/metamod/
/bms/addons/sourcemod/
/bms/addons/sourcemod/plugins/            <- .smx plugin files
/bms/addons/sourcemod/configs/            <- configurations, e.g. admin lists

Verify the installation

Enter the following commands in the server console:

Custom maps and custom content

1. Stop the server
   Stop your server via the dashboard.

2. Upload maps in BSP format
   Upload maps that come as a .bsp file via SFTP to the following directory:

   /bms/maps/
   

3. Upload content in VPK format
   Maps and custom content that come as a .vpk package belong in the addons folder instead. Packages from the Steam Workshop go into the workshop subfolder:

   /bms/addons/
   /bms/addons/workshop/
   

4. Activate the VPK packages
   A VPK package is only loaded once it is listed in the addon list. Open the following file – if it does not exist yet, create it:

   /bms/addonlist.txt
   

   Add the packages like this (1 = active, 0 = inactive):

   "AddonList"
   {
      "workshop\432070352.vpk"     "1"
      "workshop\432074065.vpk"     "1"
   }
   

5. Add the map to the rotation
   Add the map to the following file – one map per line, each without the file extension:

   /bms/cfg/mapcycle.txt
   

6. Start the server
   Start your server. With changelevel <map name> in the server console you switch to a map directly.

Co-op mode with SourceCoop

The multiplayer mode of Black Mesa is a pure deathmatch mode. If you want to play the campaign together, the community plugin SourceCoop exists for exactly that.

1. Meet the requirements
   Metamod:Source and SourceMod have to be installed and working as described above.

2. Download SourceCoop
   Download the current version of the plugin from the GitHub project.

3. Stop the server
   Stop your server via the dashboard.

4. Upload the files
   Upload the contents of the archive (the folders addons, materials and models) via SFTP to /bms/, following the folder structure it contains. The plugin files end up in /bms/addons/sourcemod/plugins/, the map configurations (.edt files) in /bms/addons/sourcemod/data/srccoop/.

5. Set the starting map
   Add the first map of the campaign you want to /bms/cfg/mapcycle.txt, for example bm_c0a0a.

6. Start the server
   Start your server and check with sm plugins list whether SourceCoop was loaded.