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How to Add Mods to Your IOSoccer Server
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How to Add Mods to Your IOSoccer Server

Add mods and plugins to an IOSoccer server

5 min read
Jul 31, 2026

Plugins on an IOSoccer 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. SourceMod officially supports IOSoccer and already ships the matching game data for the Linux server.

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:

    /iosoccer/
    

    Afterwards the folder /iosoccer/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 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:

    /iosoccer/
    

    Existing folders are merged, not replaced. Afterwards the folder /iosoccer/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:

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

Add custom maps

  1. Download the map
    Custom maps come as a .bsp file.

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

  3. Upload the map
    Upload the .bsp file via SFTP to the following directory:

    /iosoccer/maps/
    
  4. Load the map
    Start your server and switch to the new map in the server console with changelevel <map name>. The map name is entered without the .bsp extension. The command maps * lists every installed map.

Adjust the map rotation

The map rotation is a text file with one map name per line, each without the .bsp extension:

/iosoccer/mapcycle.txt

Which file is used is defined in /iosoccer/cfg/server.cfg:

mapcyclefile "mapcycle.txt"

Deliver custom maps to players

Players who do not own a custom map cannot join the server. With a download server (FastDL) they download the files automatically when connecting. Add the following lines to /iosoccer/cfg/server.cfg:

sv_allowdownload 1
sv_downloadurl "https://your-domain.com/fastdl/"

Set kits and team names

You set up the two teams of a match through server settings – no plugins required:

Setting Meaning
mp_teamkits <home> <away> Sets the kits of both teams. The first value applies to the home team, the second to the away team. Instead of a number you can also search for a team name, for example mp_teamkits barcelona.
mp_teamnames Overrides the team names, for example mp_teamnames "FCB:FC Barcelona,RMA:Real Madrid"

Client-side mods

Folder structure at a glance

/iosoccer/addons/metamod/
/iosoccer/addons/sourcemod/
/iosoccer/addons/sourcemod/plugins/     <- .smx plugin files
/iosoccer/addons/sourcemod/configs/     <- configurations, e.g. admin lists
/iosoccer/cfg/                          <- server.cfg and autoexec.cfg
/iosoccer/maps/                         <- .bsp map files
/iosoccer/mapcycle.txt                  <- map rotation

Verify the installation

Enter the following commands in the server console:

Command Description
meta version Show the Metamod:Source version
meta list Show the extensions loaded by Metamod
sm version Show the SourceMod version
sm plugins list Show the loaded SourceMod plugins
Written byEmeraldHost Team
Last updated on Jul 31, 2026 Edit on GitHub

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