# Setting Up an ATS Server

> Set up an American Truck Simulator Convoy server: generate server_packages, Steam token, server_config.sii and mods. A step-by-step guide for your ATS dedicated server.

**Short answer:** You need a Steam server login token for app ID 270880, the server_packages exported from your local game and the server_config.sii on the server. Add the token, upload the packages, start the server — convoy supports up to 8 players.

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| --- | --- |
| Game | American Truck Simulator |
| Category | Multiplayer |
| Difficulty | Advanced |
| Reading time | 7 min |
| Last updated | 2026-06-21 |
| Language | en |
| Source | https://agrarchaoten.com/en/guides/ats-server-einrichten |
| Other language | https://agrarchaoten.com/guides/ats-server-einrichten |

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## Contents

- [Overview](https://agrarchaoten.com/en/guides/ats-server-einrichten#ueberblick)
- [Requirements](https://agrarchaoten.com/en/guides/ats-server-einrichten#voraussetzungen)
- [Setting up the server](https://agrarchaoten.com/en/guides/ats-server-einrichten#einrichten)
- [How players join](https://agrarchaoten.com/en/guides/ats-server-einrichten#beitreten)
- [Using mods](https://agrarchaoten.com/en/guides/ats-server-einrichten#mods)
- [Common problems](https://agrarchaoten.com/en/guides/ats-server-einrichten#probleme)
- [Tips](https://agrarchaoten.com/en/guides/ats-server-einrichten#tipps)
- [FAQ](https://agrarchaoten.com/en/guides/ats-server-einrichten#faq)

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## ATS Server — Overview

With an **American Truck Simulator** Convoy server you can drive the US highways together as a group. A dedicated server keeps the session open permanently — players can join at any time without a specific host needing to be online. In this guide you'll set up your ATS server step by step, including mods and the typical pitfalls.

**What you need:** An ATS dedicated server (e.g. at [Agrar Chaoten](https://agrarchaoten.com/gameserver/ats)), the game on your PC and a Steam account for the server login token. Convoy currently supports up to 8 players at once.

## Requirements

- **Steam server login token:** Create a token at [steamcommunity.com/dev/managegameservers](https://steamcommunity.com/dev/managegameservers) for app ID `270880` (American Truck Simulator).
- **server_packages:** These files define which map and DLCs the server loads — they are generated in-game (see the next step).
- **Same DLCs:** All players need the same map DLCs as the server.

## Setting Up the Server

**1. Generate the server_packages**

Start ATS, load your desired profile and open the developer console. Type `export_server_packages`. ATS creates `server_packages.sii` and `server_packages.dat` in your profile folder.

**2. Upload the files to the server**

Upload both `server_packages` files to the server via FTP. They define which map (incl. DLC states) and which mods are active.

**3. Adjust server_config.sii**

In `server_config.sii`, enter the server name, password, max. player count and your `lobby_name`. Add the Steam login token in the `token` field so the server gets listed publicly.

**4. Start the server**

Start the server via the web interface. The log shows whether the token was accepted and the session was created. Default ports: `27015` (UDP/TCP) and `27016`.

## How Players Join

In-game under **Multiplayer → Browse servers** your server is listed (name = `lobby_name`). Password-protected servers appear with a lock icon. Alternatively you can join directly via IP. Important: all players must own the same map DLCs, otherwise joining will fail.

## Using Mods

ATS mods (e.g. map or truck mods) work in Convoy, but they have to be in sync:

**1. Enable mods in your profile**

Enable the mods you want in the mod manager and then regenerate the `server_packages` — otherwise the server won't know about the mods.

**2. Transfer to the server**

Upload the updated `server_packages` and the mod files to the server. All players need exactly the same mods in the same version.

**Order matters:** The mod load order must be identical on the server and the clients. The easiest way is to share your mod pack as a list so everyone sets the same order.

## Common Problems

- **Server not listed:** Login token missing or created for the wrong app ID. ATS = 270880, ETS2 = 227300.
- **Joining fails:** Different DLCs or mods between server and player.
- **Map missing after an update:** Re-export the `server_packages` after an ATS or DLC update.
- **Connection drops:** Check that ports 27015/27016 are open — preconfigured on rented servers.

## Tips

**ETS2 in parallel:** The process is identical for Euro Truck Simulator 2 — only app ID 227300 and the respective map DLCs differ.

**Backups:** Back up your `server_config.sii` and `server_packages` via FTP before making bigger changes.

## Frequently Asked Questions (FAQ)

### ATS Convoy without setup stress.

With us your American Truck Simulator server runs instantly, with open ports, DDoS protection and a web interface. Hit the highways with up to eight players — we handle the tech in the background.

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## Frequently asked questions

**Q: How many players does an ATS Convoy server support?**
A: Currently up to 8 players at the same time in Convoy multiplayer.

**Q: Do I need a Steam login token?**
A: Yes, for public listing. Create one at steamcommunity.com/dev/managegameservers for app ID 270880 (ATS).

**Q: Why doesn't my server show up in the list?**
A: Usually the login token is missing or belongs to the wrong app ID. ATS = 270880, ETS2 = 227300.

**Q: Do all players need the same DLCs?**
A: Yes, all players need the same map DLCs and mods as the server, otherwise joining fails.

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## About this guide

This guide was written by Agrar Chaoten — a German game server host specialising in American Truck Simulator.
Rent a server: https://agrarchaoten.com/gameserver

*Source: https://agrarchaoten.com/en/guides/ats-server-einrichten*
*Agrar Chaoten — https://agrarchaoten.com*
*Support: support@agrarchaoten.com | Discord: https://discord.gg/YgredRdvY6*