Dedicated server guide

American Truck Simulator

Manage atsserver with AlphaGSM. Choose a runtime supported by the recorded module capabilities.

Operator-provided prerequisites required · Support evidence: 2026-10-16.

Runtime familysteamcmd-linux

Declared runtimes: Docker or a Linux host process.

Network bindings

queryport/UDP, queryport/TCP, 27015/UDP, 27015/TCP. Named port values remain unknown; review the game guide and configuration for additional requirements.

Mods and plugins

No mod support is declared in this snapshot; review the game guide before adding mods.

Backup hook

A module-specific backup hook is declared. Review the game guide for its scope, restore procedure and shutdown requirements.

Choose a supported runtime

Linux and Docker quickstart

Operator-provided game files, runtime or other prerequisites are required; follow the game guide before setup.

Docker

Complete interactive setup and review game-specific configuration before starting the server. Operator-provided game files, runtime or other prerequisites are required; follow the game guide before setup.

Start the Docker manager ./alphagsm-docker start
Create the game instance ./alphagsm-docker my-atsserver create atsserver
Complete interactive setup ./alphagsm-docker my-atsserver setup
Start the game server ./alphagsm-docker my-atsserver start
Check the instance status ./alphagsm-docker my-atsserver status

./alphagsm-docker start
./alphagsm-docker my-atsserver create atsserver
./alphagsm-docker my-atsserver setup
./alphagsm-docker my-atsserver start
./alphagsm-docker my-atsserver status

Host process

Create the game instance ./alphagsm my-atsserver create atsserver
Complete interactive setup ./alphagsm my-atsserver setup
Check the host prerequisites ./alphagsm my-atsserver doctor
Start the game server ./alphagsm my-atsserver start
Check the instance status ./alphagsm my-atsserver status

./alphagsm my-atsserver create atsserver
./alphagsm my-atsserver setup
./alphagsm my-atsserver doctor
./alphagsm my-atsserver start
./alphagsm my-atsserver status

This guide covers the atsserver module in AlphaGSM.

atsserver is currently ENABLED (BYO) on the documented Ubuntu 24.04 Linux baseline. GitHub integration skips this lifecycle until an owned client export is staged; it does not start the process or Docker runtime without those files. Local runs remain process-backed by default unless you opt into the Docker backend.

Requirements

SteamCMD runtime libraries (lib32gcc-s1, lib32stdc++6)
Exported ATS server packages/settings from an owned American Truck Simulator client install; the anonymous dedicated-server payload alone is not enough to finish startup
Python packages from requirements.txt

Quick Start

Create the server:

alphagsm myatsserve create atsserver

Run setup:

alphagsm myatsserve setup

Start it:

alphagsm myatsserve start

Check it:

alphagsm myatsserve status

Stop it:

alphagsm myatsserve stop

Setup Details

Setup configures:

the game port (default 27015)
the query port (default 27016)
the install directory
SteamCMD downloads the server files

This server is supported in ENABLED (BYO) mode. The dedicated server still expects the exported server-packages/settings payload generated by the full game client. If startup logs report Server packages file not found, run export_server_packages from an owned ATS client and stage the resulting files before retrying AlphaGSM startup.

Useful Commands

alphagsm myatsserve update
alphagsm myatsserve backup

Notes

Module name: atsserver
Default game port: 27015
Default query port: 27016
query and info use Steam A2S on the dedicated query port, not the game port.

Server variables

After create atsserver, inspect or change these with set:

alphagsm myserver set --list
alphagsm myserver set KEY --describe
alphagsm myserver set KEY VALUE

This module does not declare schema-backed keys. set --list after create is still the live source of truth.

Developer Notes

Run File

Executable: bin/linux_x64/americantruck_server
Location: <install_dir>/bin/linux_x64/americantruck_server
Engine: Custom (SteamCMD)
SteamCMD App ID: 2239530

Official SCS dedicated-server documentation says the dedicated app can be downloaded anonymously, but first launch still requires server_packages.sii and server_packages.dat exported from a real client profile via export_server_packages. Stage those files into <install_dir>/.local/share/American Truck Simulator/ before start.

Server Configuration

Config file: server_config.sii
Template: See server-templates/atsserver/ if available

Maps and Mods

Map directory: Check game documentation
Mod directory: Check game documentation
Workshop support: No

BYO file helper

Inspect this game's required files, source instructions and destinations with alphagsm <server-name> assets requirements; check the declared files with alphagsm <server-name> assets check. File checks do not establish game readiness. Generate server_packages.sii and server_packages.dat in the owned client using export_server_packages. For a relative configdir, the allowlisted import places both exports under that directory in the server installation. For an absolute configdir, stage both files manually in that home; assets requirements and assets check support it, while managed import and export explain the manual-staging requirement. See BYO files and private SteamCMD acquisition.

Configuration templates

Reference files from this source revision. Review paths, passwords and game-specific settings before use.

Share your server

Sector Alpha server directory

When your server is ready, you can publish its connection details and community information on Sector Alpha. Review your listing and keep the information current.

Find a community

Browse the directory for game servers and their published connection details.

Browse server directory

Publish your server

Prepare a name, address and description for your listing.

Publish a server

Manual server sharing instructions

Frequently asked questions

What support evidence is recorded for American Truck Simulator?

Operator-provided prerequisites required. Operator-provided game files, runtime or other prerequisites are required; follow the game guide before setup.

Which runtimes can run American Truck Simulator?

Declared runtimes: Docker or a Linux host process.

Which ports does American Truck Simulator use?

queryport/UDP, queryport/TCP, 27015/UDP, 27015/TCP. Named port values remain unknown; review the game guide and configuration for additional requirements.

Can I add mods to American Truck Simulator?

No mod support is declared in this snapshot; review the game guide before adding mods.

How should I back up American Truck Simulator?

A module-specific backup hook is declared. Review the game guide for its scope, restore procedure and shutdown requirements.

Source and support evidence

This guide mirrors AlphaGSM’s upstream documentation at 32cef5ba9e03053c8e461fffa0ba133b160b528d. Commands and prerequisites can change. Check current support notes before installation.

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