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S&box launch script

Generate the .bat or .sh script of your S&box dedicated server: +game, +hostname, +port, +net_query_port and steamclient linking.

Last updated: 10/9/2026

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Documentation
Server
Network

0 = not sent (no official default).

0 = not sent (no official default).

Optional; available after S&box release per the docs.

Paths
run-server.txt
Live preview — automatically saved in your browser.
@echo off
REM Generated by games-tools.game-rank.com - see sbox.game/dev/doc/networking/dedicated-servers
reg add "HKCU\SOFTWARE\Valve\Steam\ActiveProcess" /v SteamClientDll64 /d "C:\steamcmd\steamclient64.dll" /f
reg add "HKCU\SOFTWARE\Valve\Steam\ActiveProcess" /v SteamClientDll /d "C:\steamcmd\steamclient.dll" /f
sbox-server.exe +game facepunch.sandbox facepunch.flatgrass +hostname "My Dedicated Server"
Server installation guideNo server yet? Install it locally or on a VPS / dedicated server, ports and firewall included.

How to use S&box launch script?

The S&box dedicated server is started with sbox-server.exe and "+" arguments executed at boot. This tool assembles the command line described in the official documentation and the script that links the Steam client binaries, which are now required.

  1. Choose the platform (Windows .bat or Linux .sh) and enter the SteamCMD folder.

  2. Enter the game package identifier (e.g. facepunch.sandbox) and, if needed, the map package.

  3. Set the server name; leave ports at 0 to omit +port / +net_query_port.

  4. Download the script, rename it to .bat or .sh, put it in the server folder and run it.

Read the full documentation →

Frequently asked questions

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