How to Host a Garry's Mod Server for Free

By FreeGameHost Team • Updated May 2026 • 8 min read

Setting up your own game server provides total creative freedom, direct folder access, and a custom multiplayer experience. Create your own GMod playground. Learn how to host a free Garry's Mod dedicated server for Sandbox, DarkRP, or TTT game modes. Whether you are planning to host a small coop world for your close friends or build a public gaming community, configuring the server correctly is essential for maintaining 20 TPS (Ticks Per Second) and low connection latency.

In this comprehensive tutorial, we cover the exact system specifications, command blocks, configuration file lines, and plugin files required to get How to Host a Garry's Mod Server for Free running. Follow each step carefully to prevent server crash loops, OutOfMemory exceptions, and common connection issues.

24/7Uptime

4 GBFree RAM

Lag-FreeOptimized

Step-by-Step Configuration Guide

SteamCMD Setup

Set up a GMod slot to download server files. Pterodactyl will download App ID 4020 files. Make sure to select the build version that matches your game server software exactly to prevent class loading errors during startup.

Configure server.cfg

Open 'garrysmod/cfg/server.cfg'. Set hostname, rcon passwords, and sandbox limits (max props, thrusters, balloons). This step is critical for proper server operation. Ensure that you have taken a manual file backup before committing these changes to disk.

Link Workshop Addons

Create a Steam Workshop collection containing your server's addons. Copy the collection ID. This step is critical for proper server operation. Ensure that you have taken a manual file backup before committing these changes to disk.

Add collection ID

Add your workshop collection ID and Steam API key to the startup settings tab to auto-mount add-ons. Check the server console panel logs as the startup sequence runs to verify that no error exceptions or missing dependency logs are thrown.

Recommended Configurations and Setup Files

To configure your server files correctly, navigate to the File Manager in your control panel and open the corresponding configuration files. Paste or modify the settings as shown in the configuration block below. These lines help prevent database thread blockages, optimize tick timing performance, and reduce entity rendering overhead on the game host:

# garrysmod/cfg/server.cfg settings: hostname "My GMod Sandbox Server" rcon_password "rconKey" sbox_maxprops 100 sbox_maxballoons 10 sbox_maxthrusters 10

Pro Tip: Download CSS game content files and upload them to your server's garrysmod/addons directory to resolve missing map textures. Pre-generating world chunks using plugin utilities (like Chunky) is highly recommended for reducing startup lag during exploration.

Frequently Asked Questions

How do players download my server addons?

Players will download addons automatically from Steam Workshop when connecting, as long as you have linked a collection ID.

Can I host this on FreeGameHost?

Yes, FreeGameHost provides free GMod hosting slots with full console access.

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