How to Install Mods on Your American Truck Simulator Server

How to set up mods on your ATS dedicated server using server_packages export — the server doesn't use mod files directly.

ATS dedicated servers handle mods differently from most games — you don't upload mod files to the server. Instead, you export a package file from your game client that tells the server about your mod configuration.

How ATS Server Mods Work

Install and activate mods in your local ATS game client (via Steam Workshop or manual)
Export a server packages file from the game
Upload the exported files to the server
Players connecting must have the same mods installed

Step-by-Step Setup

Set Up Mods on Your Game Client

Subscribe to mods via the Steam Workshop, or manually install them. Activate them in the ATS Mod Manager.

Enable the Developer Console

In your ATS config.cfg:

uset g_developer "1"
uset g_console "1"

See Developer Console for details.

Export Server Packages

Launch ATS and load into a game (must be on a map)
Press ~ to open the console
Type: export_server_packages
Two files are generated in your ATS user directory:
- server_packages.sii (text — map, DLC, mod config)
- server_packages.dat (binary — map data)

Upload to Your Server

Stop your server
In the XGamingServer Panel, click Files
Upload both server_packages.sii and server_packages.dat to the server root
Start your server

Enforce Mods (Optional)

In server_config.sii, set:

 mods_optioning: true

This prevents players without matching mods from joining.

Important Notes

Re-export every time you add, remove, or update mods
The server never downloads or processes mod files — it only uses the package data
Players must have the same mods installed on their game client
The export is not account-locked — anyone can generate and transfer the files

DLC Handling

You don't need to own DLC on the server
DLC map data is embedded in the server_packages files
Players without a specific DLC can still connect — they just can't enter that DLC's map area

How to Install Mods on Your American Truck Simulator Server

On this page