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To play with mods on a server, you only need to install them on the server. You do not need to install mods on the client — they will be downloaded from the server automatically.

  1. Stop the server Before adding new files, **always shut the server down**. If you change the `Mods` folder while the server is running, the changes will not apply or you may get a file-access error.
  2. Download modifications Only use mods that support server-side operation.
  3. Open the server folder You need to get into the directory that contains the server binaries:
    1. In the server console, click Server Folder.
    2. Or go to: %appdata%\HLauncher\ServerData
  4. Install
    1. Find the mods folder inside
      • Note: If the folder does not exist, create it manually, matching the letter case.
    2. Copy the downloaded mod files into this folder.
  5. Launch and verify
    1. Start the server from the launcher.
    2. Watch the console carefully: if a mod is the wrong version or conflicts with others, the server will print an Error and stop.
    3. If the server started successfully (Done status), the mods are active for every connecting player.

HLauncher documentation