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# How to Change Map on Garry's Mod Server


Whether you're hosting a roleplay server, a sandbox world, or a custom game mode, knowing how to change the custom map on your GMod server is the first step for any server owner.

This guide will show you how to change the map on your GMod server in a few simple steps. 

| Trying to change the map of your Garry's Mod server on a dedicated machine or a VPS? Check out this guide for setup on dedicated servers (4:56 - 8:50 has the relevant info): https://www.youtube.com/watch?v=DD3YTMoemzU

---

### Uploading a Map

To change the map on your Garry's Mod server:

1. Log into the server panel.
    
    ![Logging in](https://images.surferseo.art/34cbbccd-3e88-4bad-a571-5239cc5727a6.png)
2. Select your server
    
    ![](https://images.surferseo.art/2f2647d6-580e-474d-bb8e-95ed40614c98.png)
3. Stop your server.
    
    ![](https://images.surferseo.art/28f62cef-3c01-45ce-a9be-bd0303971f5d.png)
4. Navigate to the file manager.
    
    ![](https://images.surferseo.art/4d94d0bc-ae30-4b3d-8c79-b27e413d0458.png)
5. Go to `/garysmod/maps` and upload the map to the maps folder. It should have the `.bsp` extension.
    
    ![](https://images.surferseo.art/6821a662-2b50-4f38-87a7-6a13167c7c54.png)
### How to Change the Map On a GMod Server (after it's been uploaded):

Either:
* Change the map field in the server's control panel. Or, go to `/start.bat` and edit it. After it says "+ map" change the name to the map's name which is the bsp file name:
    
    ![How to change the parameter](https://images.surferseo.art/5e090dd7-aaee-46e4-83ab-1e79531dc88c.png)
* On Sparked Host, you can go to the `startup` part of the panel and change the `MAP` value:
    
    ![](https://images.surferseo.art/a410bcbe-57e8-4365-9674-f17ce04afbfe.png)
---

### How to Find Garry's Mod Maps on the Steam Workshop

To grab Garry's Mod maps for your server on the Steam Workshop:

1. Look through Steam to find a map to add to your gmod server. You can [search for it by going to the steam workshop under garry's mod and looking for maps under the content type Addon](https://steamcommunity.com/workshop/browse/?appid=4000&searchtext=&childpublishedfileid=0&browsesort=trend&section=readytouseitems&requiredtags%5B%5D=Map&requiredtags%5B%5D=Addon&created_date_range_filter_start=0&created_date_range_filter_end=0&updated_date_range_filter_start=0&updated_date_range_filter_end=0).
    
    ![](https://images.surferseo.art/143012ed-954b-4211-ab56-3010fdef9366.png)
2. Select the map that you want and subscribe to it. Also, copy to clipboard the ID in the URL. We'll use the ID later to find the map file.
    
    ![](https://images.surferseo.art/6ce4e301-db32-4729-b3a1-d42e2fe29650.png)
3. Once it's done downloading, go to your Steam folder. You can do this from your games library:
    
    ![](https://images.surferseo.art/a7c5ecbd-b867-4392-b4f3-125fe8349ca9.png)
4. Go back two folders and select `steamapps`
    
    ![](https://images.surferseo.art/4672c802-a792-4ff7-be79-3517cd8d4498.png)
5. Go to the `workshop` folder within `steamapps`
    
    ![](https://images.surferseo.art/914ad4e4-456e-4cb0-8258-b5cc9df2916a.png)
6. Go to `content`.
    
    ![](https://images.surferseo.art/b09c2fd7-1b13-4449-99bc-36b201fac0ef.png)
7. Go to `4000` which is the id for gmod.
    
    ![](https://images.surferseo.art/8dc62018-bfa2-4ef5-be6a-ad5fc9d1ed7b.png)
8. Go to the folder that's the same ID as the ID you copied from step 2.
    
9. From there, you'll see a `.gma` file that we need to turn into a bsp file. We can do this via the built-in converter that gmod has.
    
10. Go to same folder as step three and navigate to `bin` and drag the `.gma` file from before onto `gmad.exe`.
    
    ![Drag and drop onto gmad.exe](https://images.surferseo.art/eafaa0c6-e1ec-417f-ad4c-2177529d20bc.png)
11. From there, you should see a folder appear:
    
    ![The relevant folder](https://images.surferseo.art/03b1f625-c698-4726-94be-7f441d82c5bf.png)
12. Open the folder and in `maps` you should find the custom map's `.bsp`.
    
13. You can upload this to your server by following the steps under `Steps to changing the map on your garry's mod server` in this article.
    
---

## How to Fix GMod "Clients Map Differs From Server" Error Message

To fix the GMod "Clients Map Differs from Server" error you might have the following problems:

* Not enough space.
    
* The wrong version of the map.
    
* The installation is in the wrong folder.
    
If the issue persists after fixing the above:

* Find the map file.
    
* Go to the `garrysmod` folder and into the `maps` folder within.
    
* Place the map file in there.
    
|| See https://steamcommunity.com/sharedfiles/filedetails/?id=1327611619 for more information

---

## Still have some questions?
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By: Julian T. 
Edited By: Mason Baker